VHF vs UHF - What's the difference
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- Опубликовано: 15 май 2017
- VHF vs UHF - What's the difference
We often get calls pertaining to Two-Way radios and our asked what is the difference between UHF ( Ultra High Frequency ) and VHF ( Very High Frequency ), well in today's video we hope we can help clarify and explain the difference between these two radio frequencies. More or less just a small increase of electromagnetic waves but also the length and duration of the signal.
I've taken the liberty of providing a variety of other links below that might help you to further understanding this topic.
As well I've attached a link that takes you directly to our website where we offer phenomenal pricing on just about every two-way radio battery to date. As well our house brand UHF DSR-590 Two- Way radio.
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MHz is Megahertz, not Hertz.
He lost all credibility when he said that.
I have my General Class Amateur Radio license and have been licensed since 1992.
They use Hertz because that is the standard for frequency in the world. Users of the term megacycles are old.
I started with systems in cycles. It only changed to Hertz in recognition of Hienrich
Fairly certain it's Hertz, kilohertz and megahertz.
I'm pretty sure he meant to say, "AmigaHertz"; it's a proprietary standard that's only for the cool kids...
Reminds me of my reverb unit i had back in the 60's in my old buick special.
Sorry was very young
THANK YOU for the easy way you put it by comparing the UHF & VHF to 7ft & 3foit poles.
That was a fantastic visual which made it so simple and easy to understand WHY it's easy for one frequency to travel or why it's difficult for it to travel compared to the other frequency!
Why can't instructors made it that simple??
I'm glad you found the analogy between UHF (Ultra High Frequency) and VHF (Very High Frequency) as 7-foot and 3-foot poles helpful! It's a great way to visualize the difference in how these frequencies behave. The length of the "pole" in this analogy helps illustrate the wavelength of the frequency. Longer wavelengths (like the 7-foot pole for VHF) can travel farther and penetrate through or around obstacles more easily than shorter wavelengths (like the 3-foot pole for UHF), which can make them better for certain types of communication over longer distances or through challenging environments.
The reason this kind of analogy isn't always used in teaching could be due to a variety of factors. Sometimes, instructors might assume a certain level of prior knowledge or may focus on the technical details without providing a simple, relatable context. Other times, the complexity of the subject matter makes it challenging to find analogies that are accurate without being misleading. However, effective educators often strive to find such analogies because they know that making complex information relatable and visual can significantly enhance understanding.
It's a reminder of the power of a good analogy in teaching complex concepts. By relating unfamiliar information to something familiar, it becomes easier to grasp the underlying principles. This approach can be especially useful in fields like electronics and physics, where abstract concepts can be difficult to visualize. If you're learning on your own or looking for ways to understand complex topics, seeking out or even creating your own analogies can be a very effective strategy.
Excellent, exactly what I was seeking.
Thank you, if you need any help please call or text us at: 815-467-6464
Units are completely wrong and the echo is very distracting.
Sorry this was one of my first videos we are working on an up to date video! If you have any questions please call or text: 815-467-6464
that made the difference quite simple. Thank you
You're welcome! If you have any more questions or need further assistance, feel free to ask.
I'm not very bright so I don't fully understand everything. I'd ask you to repeat things but the echo has got me covered.
Sorry was very young making this
Thank you I appreciate it.
You're welcome! If you have any more questions or need further assistance, feel free to ask.
thanks for the clear info
No problem if you ever need help call or text us at: 815-467-6464 or email me directly at cody@batteryjack.com
Please, delete this video, correct the material, and record it, again! Thanks!
hahah.. so true
I'm new to HAM and still learning and was wondering what you were talking about....and then I got it once he started into the actual meat of the video. At least use the right metric measurements. Calculations are done in meters not feet.
@@theodorepollock1273 The entire video is a hot mess. He confuses Hz for MHz. He uses feet instead of meters. His visual aid regarding VHF and UHF fails to represent what is actually happening. He is just plain wrong when he says 99% of radio users would be better off with UHF.
I appreciate the effort, but his presentation leaves much to be desired.
Sorry I was very young when making this if you need any help call or text: 815-467-6464 or email me directly at cody@batteryjack.com
Holy echo batman
Hahahahah
If you have any other questions please feel free to call or text us at: 815-467-6464 or email me directly at cody@batteryjack.com
So, would you say when using radios in a rural environment use VHF, but when using them in a built up environment use UHF? Or just stick with UHF in both areas as it does the same in the open as VHF does? Thanks!
In open areas, VHF will slightly outperform UHF, due to longer wave length and more bending toward the horizon. Dual band radios are getting cheaper..
The choice between using VHF (Very High Frequency) and UHF (Ultra High Frequency) radios depends on several factors, including the environment in which they will be used, the type of communication needed, and any specific constraints such as range or licensing requirements. Here's a general guideline based on the characteristics of each frequency band:
VHF (Very High Frequency): VHF radios operate in the frequency range of 30 MHz to 300 MHz. They are typically used in open, outdoor environments because VHF waves travel further than UHF waves under similar conditions, especially in areas with little to no obstructions. VHF is ideal for rural areas or places with minimal barriers because its longer wavelength can cover greater distances without using much power. However, VHF signals have a harder time penetrating buildings, dense forests, and urban environments.
UHF (Ultra High Frequency): UHF radios operate in the frequency range of 300 MHz to 3 GHz. UHF is generally preferred in built-up areas and for indoor communication because its shorter wavelength allows it to penetrate through urban clutter, such as buildings and trees, more effectively than VHF. UHF can also provide better coverage inside structures such as concrete buildings or steel structures, making it suitable for cities and highly constructed areas.
Given these differences, if you are operating primarily in a rural, open area with few obstructions, VHF might offer better performance due to its ability to cover longer distances with less power. However, if you anticipate needing to communicate in or around buildings or densely wooded areas, UHF would likely be the better choice due to its superior penetration capabilities.
Using UHF in Both Environments:
Choosing UHF for both rural and urban settings can be a practical decision, especially if you need a versatile communication solution that performs reasonably well in various environments. While UHF might not always provide the same range in open areas as VHF, its ability to work well in both open and obstructed environments makes it a flexible choice for many applications. If you're looking for a "one-size-fits-all" solution and you're okay with the trade-offs, sticking with UHF could simplify your setup and ensure consistent communication capabilities across different scenarios.
Ultimately, the best choice depends on your specific needs, including the range you need to cover, the environments you'll be operating in, and whether you can manage using different types of radios for different situations. In some cases, organizations opt to use both VHF and UHF radios to maximize their communication capabilities across varied environments.
Wow based on some of the criticisms below, I;m kind of scared to say this.. But anyway here goes. Thanks for taking the time to do a video and sharing it.. Peace.
Thank you! If you have any questions or need help reach out to us via call or text at: 815-467-6464 or email cody@batteryjack.com
Hello. Quick question. If I have a radio that can do both UHF and VHF when I use it on a frequency (ie. 462.500) can I change the UHF VHF settings depending on my location? Or am I dumb and the UHF VHF range is determined by the 462.500?
Did you get an answer ?
@@777Zubi no I did not. I frequently put that "no question is too stupid to ask" adage to the test. LOL 462 is UHF. 462 can never be VHF.
No need to worry; it's a perfectly valid question!
The ability of your radio to transmit and receive on both UHF and VHF frequencies is determined by its design and capabilities. When you operate your radio on a specific frequency, such as 462.500 MHz, the UHF or VHF setting you use depends on the frequency range that particular frequency falls into.
In your example, 462.500 MHz is within the UHF range, so you would use the UHF setting on your radio to transmit and receive on that frequency. Similarly, if you were operating on a frequency within the VHF range, you would use the VHF setting on your radio.
The UHF and VHF settings on your radio are not typically something you manually switch between based on your location or the specific frequency you're using. Instead, they are fixed settings that correspond to the frequency range being used. So, if your radio supports both UHF and VHF, it will automatically select the appropriate setting based on the frequency you choose to operate on.
If you're unsure about which setting to use for a particular frequency or if you have any other questions about operating your radio, consulting the user manual or contacting the manufacturer's customer support can provide you with the necessary guidance and information.
Excellent info and great Video
Thank you!
Sad that he repeatedly says wrong terminology as many others before me have commented...
He says hertz.
He should say megahertz.
He sounds like he recorded this while sitting on the toilet.
Terrible echo from the room he is in.
kinda demonstrates line of sight vs ground bouncing, using one or the other is just fine, but when you get both, as the timing may be off by less than a second gives distortions or echo's making it hard for signals to get through, especially as we start to transition to digital which cannot handle the echo's as well as analogue would.
Happy Fo
@@HappyfoxBiz Funniest thing I read all year!
Thank you
Thanx f0r fruitful inf0
Yes
Very good ideas 💡
If you have any other questions please feel free to call or text us at: 815-467-6464 or email me directly at cody@batteryjack.com
One time I found this almost like a server tower that's how tall it was. The info paper that was attached to it said it operated at roughly 30000 to 35000 MHz.
Wow
*y'all are complainers, the echo isn't that bad, I learned a lot from this video regardless. Even if it does sound like he filmed it in a big bathroom.* 😂
Lol thank you, I was very young when making this if you have any other questions or need help please text or call: 815-467-6464 or email me directly cody@batteryjack.com
informative like it
Thank you
did you record the sound through an old CB radio with an echo?
Sorry was very young when making this
I thought that the echo is caused by me watching it inside the bathroom 😂
Sorry was very young when making this
@@BigTimeBattery No worries, I like your videos, they are very informative! Keep up the good work and keep on sharing the knowledge! ;-)
Olá, Tudo bem!?
Parabéns pela apresentação!
Olá! Tudo bem, obrigado! Fico feliz que tenha gostado da apresentação. Se tiver alguma pergunta ou se precisar de mais informações, estou à disposição para ajudar. Como posso assisti-lo hoje?
Great information my friend
Thank you, if you need help call or text us at: 815-47-6464
Cheers
If you need free battery help call or text: 815-467-6464 or email us directly at cody@batteryjack.com
I am fairly sure that a lower frequency signal has better penetration than higher frequencies..
Ie VHF has better penetration over uhf?
Yes, you are correct. In general, lower frequency signals have better penetration capabilities compared to higher frequency signals. This principle applies to radio waves as well. Very High Frequency (VHF) signals have better penetration through obstacles like buildings, trees, and other physical obstructions compared to Ultra High Frequency (UHF) signals.
This is because lower frequency waves can diffract or bend around obstacles more effectively due to their longer wavelengths. They also suffer less attenuation or weakening as they travel through materials. As a result, VHF signals are often preferred for broadcasting over longer distances and for providing coverage in areas with challenging terrain or obstacles.
Hello.
I am new to VHF/UHF and i have some questions hoping that someone cant answer me.
If i use a portable VHF with no gps on it.
Can someone track my position ?
If i want someone to track my position can i change the tranciever of the same device or something else so other
people or coast guards can track my position ?
Thank you.
Hello! It's great that you're exploring the world of VHF/UHF communications. Let's address your questions one by one.
Can someone track my position if I use a portable VHF with no GPS on it?
In general, simply using a standard portable VHF radio without GPS capabilities does not allow others to track your exact position directly. These radios transmit voice (or sometimes data) over radio frequencies, and while someone can potentially estimate your location based on signal strength and direction (using techniques like radio direction finding), this requires specialized equipment and is not precise without more sophisticated triangulation methods. It's not a common practice for casual or incidental monitoring and would require someone actively trying to locate you.
If I want someone to track my position, can I change the transceiver of the same device or something else so other people or coast guards can track my position?
To enable others (like coast guards) to track your position, the most effective and reliable method is to use a device equipped with GPS and a feature known as Digital Selective Calling (DSC). DSC is a standard for sending pre-defined digital messages via the medium frequency (MF), high frequency (HF), and very high frequency (VHF) maritime radio systems. It includes distress signals that can automatically include your position if your VHF radio is connected to or integrated with a GPS receiver.
If your current device does not support GPS or DSC, you cannot simply change the transceiver to add these functionalities due to the integrated nature of modern electronics. It would be more practical to obtain a new VHF radio designed with these features. Many modern marine VHF radios come with built-in GPS and DSC, specifically for safety reasons, allowing coast guards or other ships to locate you in case of an emergency.
For non-emergency tracking, other technologies might be more suitable, such as AIS (Automatic Identification System) transponders for maritime use, or personal locator beacons (PLBs) which also work well on land. These devices transmit your position to satellites or nearby ships, making it easier for someone to monitor your location.
In summary, for safety and tracking purposes, especially in maritime environments, investing in a device designed with GPS and DSC (or similar technologies) is the best approach. This ensures that in an emergency, responders can quickly and accurately determine your location.
thank's
No problem- If you have any other questions please feel free to call or text us at: 815-467-6464 or email me directly at cody@batteryjack.com
good video
Thank you! If you have further questions or need clarification, feel free to reach out to us at 815-467-6464 or email me directly at cody@batteryjack.com. We're here to help ensure you charge your battery safely and effectively.
They are using CG 818 mini base radio, antenna is Cignus CP22
No?
Thanks, the analogy with the 2m pole makes sense now. My questikn is: do trees count as obstructions like a building would, or does there need to be conductive material. Basically, is wood invisible to radio waves?
YES, wood or Trees have water in them, so they will block or Deflect radio waves. your Best bet is a high power HF, CB or Shortwave radio. HF and CB can take advantage of Ground Skip. and SW communicates over long distances but at a loss of Voice Clarity. Concrete buildings (not Houses) block radio waves, but Some houses are Semi-Transparent to Radio waves. One Solution is to Drill holes in a Concrete Building and install multiple metal rods that go from the inside to outside. Plastic is RF Transparent. Its why Radar uses Plastic Domes. but that has been replaced by IP (wifi) Repeaters. so Security and Firemen can communicate in a 100 Story Concrete Building.
The behavior of radio waves when they encounter objects, including trees, depends on the frequency of the radio waves and the properties of the object. Wood is not "invisible" to radio waves, but its impact on radio wave propagation varies.
Frequency Dependency: Higher frequency radio waves (such as those used in many modern wireless communications) are more likely to be absorbed or scattered by objects, including trees. Lower frequency waves can penetrate through or diffract around obstacles more effectively. This means that at higher frequencies, trees (and their leaves, moisture content, etc.) can significantly attenuate (weaken) the signal.
Material Properties: The ability of radio waves to penetrate an object is also influenced by the object's material properties. Trees contain water and have a complex structure, which can absorb and scatter radio waves, especially at higher frequencies. This effect is more pronounced when the foliage is dense and when the trees are wet, as water is a more effective absorber of radio waves than dry material.
Impact of Obstructions: While trees do not block radio waves as completely as a solid metal or concrete wall might, they can still cause significant attenuation, especially in a forest or in situations where there is dense foliage between the transmitter and receiver. The effect is cumulative; the more trees or foliage in the path of the radio waves, the greater the attenuation will be.
Comparative Impact: Compared to buildings or other solid structures made of conductive or dense materials, trees generally offer less obstruction, but they are not completely transparent to radio waves. The impact is nuanced and depends on the specific scenario, including the type of trees, their density, and the frequency of the radio waves.
In summary, wood is not invisible to radio waves, but its impact as an obstruction depends on the frequency of the radio waves and the specifics of the tree(s) in question. Trees can attenuate radio waves, making them a consideration in the design and placement of radio and wireless communication systems.
I am in the market for a Lavalier Lapel Mic, I do not need a long range - to be used in my home
My PC is connected to a 12 ch Mixer no USB
Also, I do not want to use a USB type mic as it will override my sound card.
open to your suggestions.
For a Lavalier Lapel Mic that doesn't require a long range and won't be connecting directly to your PC via USB, you have several options that can connect to your mixer, ideally through an XLR connection or a 3.5mm to XLR adapter if the mic comes with a 3.5mm jack. Since you're using a mixer, you have the flexibility to use a variety of microphones, including those designed for live performance, broadcasting, or recording scenarios. Here are some suggestions:
Wired Lavalier Mics:
Rode Lavalier GO: This is a compact, high-quality lapel mic that delivers clear, crisp sound and is designed to perform excellently in a variety of scenarios. It features a 3.5mm TRS connector but can be adapted to XLR with the Rode VXLR+ adapter. This setup would not interfere with your sound card and would connect directly to your mixer.
Shure MVL Omnidirectional Condenser Lavalier: This is another high-quality option from a well-regarded brand in audio. It also uses a 3.5mm jack, which means you might need an adapter to connect it to your mixer via XLR. Shure mics are known for their durability and sound quality.
Wireless Lavalier Systems (if you decide wireless convenience is worth considering despite not needing long range):
Sennheiser XSW-D PORTABLE LAVALIER SET: This wireless system is easy to use, offers plug-and-record setup, and comes with a lavalier mic. It operates on a digital transmission system, ensuring clear sound. The receiver can connect to your mixer through an XLR cable, providing a clean setup without interfering with your PC's sound card.
Rode Wireless GO II: A versatile and compact wireless system that can be used with a lavalier mic (purchased separately). It's incredibly user-friendly and offers a reliable connection with good sound quality. The receiver can be connected to your mixer using the appropriate cables and adapters, thus avoiding any issues with your sound card.
Adapter for Existing Mics:
If you already have a lavalier mic with a 3.5mm connection, consider purchasing a 3.5mm to XLR adapter. This allows you to connect your current microphone directly to your mixer. Make sure the adapter provides phantom power if your microphone requires it, though many lavalier mics are designed to work without external power.
When choosing a microphone, consider the following:
Compatibility: Ensure the mic or system you choose can be easily connected to your mixer with the appropriate cables or adapters.
Sound Quality: Look for mics with good reviews regarding sound clarity and noise rejection, especially if your home environment isn't sound-treated.
Durability: Since it's for home use, durability might not be as crucial as for on-the-road use, but it's still important to choose a product that's well-made.
Remember, the best choice depends on your specific needs, such as the type of content you're producing (e.g., podcasts, videos, music) and your budget. It's also worth checking out user reviews and possibly testing a few options if you have the opportunity to do so before making your decision.
What would recommend for communication in very hilly terrain with a 3 miles and a 400ft. peak between the two users? is the TYT TH-9000D any good?
For communication in very hilly terrain with significant obstructions such as a 400ft. peak between two users, the key factors to consider are the type of radio frequency, power output, and the capability of the radio to handle such terrain. Generally, VHF (Very High Frequency) and UHF (Ultra High Frequency) bands are used in two-way radios, with UHF being better suited for penetrating urban environments and dense forests, whereas VHF is more efficient over open land or rolling hills without many obstacles.
Given the specific conditions you mentioned, a UHF radio might be more suitable due to its ability to better navigate around or through obstacles. However, the effectiveness also greatly depends on the power output of the radio and the type of antenna used.
The TYT TH-9000D is a mobile ham radio known for its robust build and high power output (up to 60 Watts for some versions). It primarily operates in the VHF (136-174 MHz) or UHF (400-490 MHz) bands, depending on the model. This radio could be a good choice for your needs, especially if you select the UHF version for better obstacle penetration. The high power output can also help in overcoming the path loss associated with the terrain and the peak between the two users.
However, the success of communication also depends on proper installation and the use of an appropriate antenna. Using a high-gain antenna that is properly positioned can significantly improve the ability to maintain clear communication over hilly terrain. For mobile or base station setups, ensuring that the antenna is placed at the highest possible point, with a clear line of sight towards the direction of communication, can enhance performance.
Additionally, considering the use of repeaters or setting up a relay station at the peak, if feasible, could provide a reliable communication link. Repeaters receive transmissions on one frequency and simultaneously re-transmit them on another frequency, effectively extending the range of communication beyond natural obstructions.
It's also worth exploring digital modes of communication offered by some modern radios, as they can be more efficient and reliable over challenging terrain, compared to traditional analog modes.
Before making a purchase, it's advisable to check for user reviews, specifically from those who have used the radio in similar conditions, and consult with local amateur radio clubs or experts who can provide insights based on practical experience in your area.
Help make a purchase,
Is this good
The system includes a transmitter with belt clip, receiver with a camera mount, mic clip & windscreen, and XLR & 3.5mm cables.
System Specs
Frequency response: 60Hz-15 KHz+/-3 dB
Audio input connector: 3.5mm mini jack
Audio input level: 600 mV-2000 mV
Power supply: Two AA batteries (up to 8 hours of run-time)
Transmitter/Receiver Dimensions (each): 4.2" x 2.6" x 1.1" (10.6 x 6.7 x 2.9 cm)
Weight (each): 95g (3.4 oz) without batteries
Signal-to-noise ratio: 80 dB
Distortion: 0.8% (-60 dBV, 1 KHz input)
Audio output level: 120 mV
Audio output connectors: 3.5mm and XLR
Lavalier Mic Specs
Polar pattern: Omni-directional
Frequency Range: 35Hz ~ 18 KHz
Signal / Noise：74dB SPL
Sensitivity: -30dB +/-3dB / 0dB=1V/Pa, 1 kHz
Connector: 3.5mm locking mini plug
Length: 1.2m (4')
All Parts Covered by a 1 Year Warranty with support based in the U.S.A.
UHF Frequency Range: 584 MHz-608 MHz; 48 Selectable Channels
Wireless Range: 100m (328-feet)
3.5mm Mic and Line Inputs; XLR and 3.5mm Outputs
Ideal for ENG/EFP & DSLR/Camera Audio
Transmitter and Receiver are powered by 2 "AA" batteries for up to 8-hours of operation
What do you need help with? Call or Text: 815-467-6464 or email me directly at cody@batteryjack.com
MHz = megahertz
Thanks for your inquiry! If you need assistance with your battery or have any questions, feel free to reach out to us at 815-467-6464. Alternatively, you can email me directly at cody@batteryjack.com. We're here to help!
So in remote Alaska wilderness, with forest and mountains... UHF or VHF? I know VHF is for Marine use, I'm just asking.
VHF or HF actually. In Alaska (not the Big City) but in the open areas you want Primarely VHF or HF (high frequency ). HF or Shortwave might just be your best bet as VHF will require a Tower antenna and or A Repeater to connect to someone. One option is CB radio as it is Close to HF. and you can communicate over vast distances with CB. But, consider SW or Shortwave for a moment, while the Clarity is NOT very high, you can communicate over VAST Distances even more than with CB radio.
In remote areas like the Alaska wilderness, which feature challenging terrain including forests and mountains, both UHF (Ultra High Frequency) and VHF (Very High Frequency) radios have their advantages and disadvantages. Here's a brief overview to help you decide:
VHF (Very High Frequency)
Frequency Range: Typically 136-174 MHz.
Pros:
Better for open spaces or gently rolling terrain without many obstacles.
Can cover longer distances with less power in open areas, which makes it suitable for marine use as you mentioned, but also useful in open wilderness.
Generally has longer antenna, which can be a factor in reception quality.
UHF (Ultra High Frequency)
Frequency Range: Typically 400-512 MHz.
Pros:
Better at penetrating through dense obstacles like trees, buildings, or rugged terrain, making it potentially more suitable for forested and mountainous areas like much of remote Alaska.
Shorter waves make it easier for the signal to navigate through complex terrains and inside buildings or dense forests.
Smaller antennas, which can be more convenient for portable use.
Considerations for Remote Alaska
Terrain and Vegetation: If your activities are primarily within dense forests and mountainous areas, UHF might be more advantageous due to its better penetration capabilities and ability to handle obstacles.
Distance: If you are operating over vast open areas or along rivers without significant obstructions, VHF could be more effective.
Equipment Compatibility: Ensure that any equipment you choose is compatible with other devices in your network or group.
Conclusion
For the specific conditions of remote Alaska wilderness, UHF might often be the better choice due to its superior ability to penetrate through dense forests and navigate the rugged terrain. However, the best choice can vary depending on specific local conditions and the exact nature of your use case. It may also be beneficial to have access to both types if your activities vary significantly in terms of environment and range.
Thanks for educating the community and appreciate your volunteering Thanks to team
Question
I have indoor TV antenna which has VHF and UHF which one i should use and also it has 5 dots on both
Please guide me
It's an RCA brand
If you have any other questions just give us a call or text at: 815-467-6464 or email me directly cody@batteryjack.com
You're welcome! I'm glad to assist you. When it comes to choosing between VHF (Very High Frequency) and UHF (Ultra High Frequency) on your indoor TV antenna, it depends on the channels you want to receive and the frequencies they broadcast on in your area.
Here's a general guideline:
VHF Channels (Low Band and High Band): These channels typically range from 2 to 13. If you're trying to receive channels within this frequency range, you should use the VHF setting on your antenna.
UHF Channels: These channels typically range from 14 to 83 and are higher in frequency than VHF channels. If the channels you want to receive fall within this frequency range, then you should use the UHF setting on your antenna.
To determine which channels are available in your area and whether they broadcast on VHF or UHF frequencies, you can use online resources or apps that provide information about local TV stations and their frequencies. Once you know the frequencies of the channels you want to receive, you can adjust your antenna accordingly.
Regarding the "5 dots" you mentioned, it likely refers to some sort of signal strength indicator on your RCA indoor TV antenna. More dots typically indicate stronger signal strength. You can adjust the position and orientation of your antenna to maximize the number of dots, ensuring the best possible reception.
If you're still unsure or need further assistance, don't hesitate to ask!
ELF? BOOM! Got ya there
Thank you
I felt like I was back at Defence Force School of Signals!!!!
You mean when they run you through super fast and you get super confused and somehow you always leave class thinking about poles and penetration...yeah was the same in US Army Signal School for me.
Sorry was very young when making this
Thank you nice video, So I need to know ...Do I need to pay to use UHF two way radio in my city .?
Yes and no. If you want to use simplex and stay off the Amateur bands, say with MURS< FRS etc, then just go to wally world and buy the appropriate radio. Now, if you want to get on the Amateur bands, you will need license. When you get the license, then it would be appropriate to support a repeater if you are going to use one..They are expensive to put in, and to maintain..Not mandatory, but nice. If you are just going to use simplex, no repeater, then no.
No
Hi I’m new to ham radio
I got a 12watts uv5r HP
QUESTION:
How far can a 12watts reach
UHF OR VHF ?
Thanks 🙏 for sharing ❤️
what frequency? Depends on conditions, time of day, skip or ionospheric conditions, also depends on your location and a huge amount on your antenna.
Hello and welcome to the world of ham radio! The Baofeng UV-5R HP is a popular handheld transceiver among amateur radio operators. The maximum power output of your UV-5R HP is 8 watts, not 12 watts, which is still quite respectable for a handheld device.
The distance your radio signal can reach depends on several factors, including the terrain, antenna height, atmospheric conditions, and the sensitivity of the receiving station's equipment. Generally, higher power does not always equate to significantly longer range due to various constraints like line of sight, obstructions, and propagation characteristics.
In open terrain with minimal obstructions, line-of-sight communication on VHF (Very High Frequency) or UHF (Ultra High Frequency) bands can typically extend several miles, potentially even further if conditions are favorable. However, if there are obstacles such as buildings, hills, or dense foliage, the effective range can be significantly reduced.
If you have any other questions please feel free to call or text us at: 815-467-6464 or email me directly at cody@batteryjack.com
Hmmm, so VHF (Vast, so vast space) and UHF (Urban, like a city). Should help me remember
I like that! If you have further questions or need clarification, feel free to reach out to us at 815-467-6464 or email me directly at cody@batteryjack.com.
Those medium frequencies owe me my money
Same
Why do I suspect he knows sweet f-all about the subject. If you can't get Mhz right ..
Hey ,you know so much you spend your money making a video trying to teach others albeit erroneously,in this case! Give the guy a break! I do want to know the absolute basics!!
@@carolinechouings6515 yes but his absolute basics are wrong. There are better beginner videos
This was an old video upon first starting in the two-way industry sorry for the incorrect information we are working on a new one.
Can u set a two way radio from VHF to UHF on the software
no
Whether you can change the frequency band of a two-way radio from VHF (Very High Frequency) to UHF (Ultra High Frequency) using software depends on the specific model of the radio and its capabilities. In many cases, the frequency band is determined by the hardware components within the radio and cannot be changed via software alone.
For example, the Baofeng UV-5R HP that you mentioned earlier is a dual-band handheld transceiver, meaning it can operate on both VHF and UHF frequencies. However, the specific frequency range for each band is fixed and cannot be altered through software.
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There i did not know i always though a wave length 36 foot long because i had a quarter wave antenna and it was 9 foot long but you can have a shorter antenna with a base coil
Your observation touches on a fundamental concept in radio antenna design, specifically relating to wavelength, antenna length, and the use of loading coils to electrically shorten antennas.
meters per second in a vacuum). For example, a frequency of 10 MHz (megahertz) corresponds to a wavelength of about 30 meters (or approximately 98 feet).
In antenna design, a quarter-wave antenna is often used, especially for monopole antennas. The length of a quarter-wave antenna is a quarter of the wavelength of the frequency it's designed to operate at. So, if you had a 9-foot-long quarter-wave antenna, it suggests it was designed for a frequency whose wavelength is 36 feet, corresponding to a frequency of about 8.3 MHz, assuming the speed of light in air is roughly the same as in a vacuum.
However, physical antenna length can be reduced without changing the frequency it resonates at by using loading coils (or base coils). A loading coil adds inductance to the antenna. This inductance compensates for the reduction in physical length, making the antenna electrically appear longer (or "electrically resonant") at its operating frequency. This technique allows for shorter antennas than the ideal quarter-wave length, especially useful in practical applications where space is limited, such as mobile or portable radio equipment.
The use of loading coils is a clever trick in RF (radio frequency) design to fit antennas into spaces that wouldn't otherwise accommodate a full-sized quarter-wave or half-wave antenna, enabling efficient transmission and reception of radio waves even from compact devices.
Distance, VHF signals travel further the UHF!! although with the right knowledge and equipment and conditions!!
they can both travel over 2000kms plus
Andy RC we've proven times where each is better than the other at similar distances but different directions making them overall equal. Horses for courses the saying is.
The statement that VHF signals travel further than UHF signals, given the right knowledge, equipment, and conditions, allowing both to potentially travel over 2000 kilometers, merits a nuanced response that involves understanding the principles of radio wave propagation.
VHF vs. UHF Propagation:
VHF (Very High Frequency) bands cover frequencies from 30 MHz to 300 MHz. These waves can travel longer distances by ground wave propagation, which means they can follow the Earth's surface. VHF signals are also less affected by buildings and natural obstacles than UHF signals, making them suitable for outdoor use over wide areas.
UHF (Ultra High Frequency) bands range from 300 MHz to 3 GHz. UHF signals have shorter wavelengths, which allows them to penetrate through urban environments better, making them ideal for indoor use. However, they generally have a shorter range in open environments compared to VHF due to their line-of-sight nature and greater attenuation with distance.
Factors Influencing Signal Distance:
Antenna Height and Gain: Higher antenna placements for both VHF and UHF transmitters can significantly increase the range by reducing obstacles and extending the line of sight.
Atmospheric Conditions: Under certain conditions, such as temperature inversions or ducting, both VHF and UHF signals can travel much further than under normal conditions. These phenomena can cause the signals to be guided over the horizon, extending their range significantly.
Power of Transmission: Higher power can extend the range of both VHF and UHF signals, although this is subject to regulatory limits to prevent interference with other services.
Use of Repeaters: Both VHF and UHF systems can use repeaters to increase their range. A repeater receives a signal and retransmits it at a higher power or from a better location, allowing the signal to cover longer distances.
Traveling Over 2000 Kilometers:
Reaching distances of over 2000 kilometers is unusual for direct VHF or UHF transmissions due to the curvature of the Earth and the typical propagation characteristics of these frequencies. However, specific atmospheric conditions, such as tropospheric ducting, can allow VHF and UHF signals to travel much farther than under normal circumstances. Additionally, amateur radio operators have achieved long-distance communication over such distances by using moonbounce (EME) techniques, where signals are literally bounced off the moon's surface, or through the use of satellites as repeaters to extend the range of VHF and UHF signals.
In summary, while VHF typically offers longer range in open environments due to its propagation characteristics, both VHF and UHF signals can achieve extraordinary distances under the right conditions and with the appropriate technology. Achieving distances over 2000 kilometers, however, usually requires specific atmospheric conditions, sophisticated equipment, or the use of satellite systems.
i have gp88 motorola how can i use this or how can i join other frequency?
Michael reyes have it programmed to channels in your area
The Motorola GP88 is a two-way radio that operates on the VHF or UHF frequency bands, depending on the model you have. To use the Motorola GP88 or join other frequencies, you typically need to follow these steps:
Understand the Frequency Band: Determine whether your Motorola GP88 operates on the VHF or UHF band. This information is usually indicated on the device or in the user manual.
Programming: The Motorola GP88 typically needs to be programmed with the specific frequencies and settings you want to use. This can be done using programming software and a programming cable compatible with the GP88. You may need to obtain the programming software from Motorola or an authorized dealer.
License Requirements: Depending on your location and the frequencies you wish to use, you may need to obtain a license from the appropriate regulatory authority. For commercial or professional use, licensing is often required.
Finding Frequencies: Identify the frequencies you want to use. These can be assigned frequencies for your organization, frequencies allocated for specific purposes (like public safety or business), or frequencies used by other individuals or groups with whom you want to communicate.
Programming Frequencies: Once you have the frequencies you want to use, you'll need to program them into your Motorola GP88 using the programming software and cable. This typically involves connecting the radio to a computer, accessing the programming software, and entering the frequency, along with other relevant settings.
Testing and Operation: After programming the frequencies, test your Motorola GP88 to ensure it's operating correctly on the desired frequencies. You can do this by attempting to communicate with another radio on the same frequency.
Compliance and Regulations: Ensure that your use of the Motorola GP88 and the frequencies you're operating on comply with local regulations and licensing requirements. Failure to comply with regulations can result in penalties and fines.
It's important to note that programming and operating two-way radios, including the Motorola GP88, require technical knowledge and understanding of radio communication principles. If you're not familiar with these concepts, it may be advisable to seek assistance from someone with experience in radio programming and operation. Additionally, always ensure that you have the necessary licenses and permissions to operate on specific frequencies, especially for commercial or professional use.
Very clear language and illustrations. Thanks.
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For house .. which is best .. UHF or VHF?
UHF
Great info! But I think you need to record the audio in a bigger room or warehouse in the future. Don't hold back on the echo effect. Way more is better.
We agree!
That’s new, ionsphere?
I'm sorry what?
How can you boost the range of a UHF antenna?
If you have any other questions just give us a call or text at: 815-467-6464 or email me directly cody@batteryjack.com
Boosting the range of a UHF (Ultra High Frequency) antenna can be achieved through several methods:
Increasing antenna height: Mounting the antenna at a higher elevation can significantly enhance its range. This reduces obstructions and improves line-of-sight communication, which is crucial for UHF signals.
Using a high-gain antenna: High-gain antennas are designed to focus radiation in a specific direction, increasing signal strength and range in that direction. These antennas typically have a more directional pattern compared to omnidirectional antennas.
Optimizing antenna placement: Properly positioning the antenna in the optimal location can help maximize its range. This involves considering factors such as avoiding obstructions, minimizing interference, and aligning the antenna with the transmitter or receiver.
Adding a signal amplifier: A signal amplifier (or booster) can be inserted between the antenna and the receiver to amplify the signal before it reaches the receiver. This can compensate for signal loss due to long cable runs or weak transmitter output.
Using high-quality coaxial cable: Upgrading the coaxial cable that connects the antenna to the receiver/transmitter can reduce signal loss and improve overall signal strength.
Employing signal reflectors or directors: Reflectors and directors can be added behind or in front of the antenna to focus the signal in a desired direction, increasing range and improving signal quality.
Using a lower-loss feedline: Selecting a feedline with lower attenuation (loss) can help maintain signal strength over longer distances.
Reducing interference: Minimizing sources of interference, such as nearby electronics or other transmitting devices operating on the same frequency, can help improve the signal-to-noise ratio and increase effective range.
Thank you for your answer. this helps a lot!@@BigTimeBattery
That was the best video I have seen which goes back to high school physics. Now I need to learn how to convert frequency to length of wires and ridged antenna design to strictly have home built stuff.
If you have further questions or need clarification, feel free to reach out to us at 815-467-6464 or email me directly at cody@batteryjack.com. We're here to help ensure you charge your battery safely and effectively.
So is there any downside to using UHF on the farm etc?
You are much better off with VHF.. VHF travels further in nature, penetrates trees and bushes better. UHF doesn't penetrate objects very well (this video is wrong), it reflects off them which is why its good in cities because it "bounces" down streets and round corners much better than VHF does.
@@Scotian280 Thanks!
Using Ultra-High Frequency (UHF) radio systems on farms or similar environments offers numerous benefits, such as improved communication range, better clarity, and the ability to support more data-intensive applications. However, there are also some downsides to consider:
Line of Sight Limitations: UHF signals, operating at higher frequencies, have more line-of-sight requirements compared to lower frequency bands (like VHF). This means that hills, buildings, and other obstructions can more significantly impact signal range and quality.
Interference: UHF bands are widely used for various applications, including TV broadcasting, cellular networks, and other communication services. This can lead to congestion in the frequency band, resulting in potential interference and reduced communication reliability.
Cost: Equipment operating in the UHF band can be more expensive due to the advanced technology required to handle higher frequencies effectively. This includes both the initial purchase and potential licensing fees for using specific parts of the UHF spectrum.
Complexity: Setting up and maintaining a UHF communication system may require more technical knowledge and expertise. This complexity can be a barrier for some users and may necessitate professional support for installation, configuration, and troubleshooting.
Battery Life: Devices that operate in the UHF band, especially those that support data-intensive applications, may consume more power. This can lead to shorter battery life for portable devices, which could be a significant drawback in remote or field-based operations.
Regulatory Issues: The use of UHF frequencies is subject to regulation by national and international bodies. Users must ensure compliance with these regulations, which can vary significantly from one region to another, adding to the complexity and potential cost of using UHF systems.
Are you sure the UHF is more convenient than VHF in an urban area ? I believe that it is just the opposite, despite there is not a great difference. The real difference is the licence to use VHF but not for PMR446.
MB Janus: VHF works better than UHF in an urban environment.
@@paganphil100 Well, I was quite sure about that, as 11 meters works better than VHF in a wood for hunters.. Many thanks.
The choice between UHF (Ultra High Frequency) and VHF (Very High Frequency) for communication systems, especially in urban areas, can depend on several factors including the specific use case, environment, and regulatory requirements. Each band has its characteristics that make it more suitable for certain applications.
UHF Advantages in Urban Environments:
Better Building Penetration: UHF frequencies typically offer better penetration of buildings and urban structures due to their shorter wavelengths. This makes UHF more effective for indoor communications within densely built-up areas.
Higher Frequency Range: UHF operates in a higher frequency range (400-512 MHz), which allows for a more compact antenna design suitable for handheld radios and other mobile devices.
More Available Channels: UHF usually provides more channels, which can help reduce interference between different users, a common concern in urban areas.
VHF Advantages and Considerations:
Wider Coverage in Open Areas: VHF provides wider coverage in open or lightly obstructed areas due to its longer wavelengths. However, in urban settings with tall buildings and various obstructions, VHF signals may not perform as well as UHF.
License and Regulation: The requirement for a license to operate VHF frequencies, as opposed to license-free PMR446 (which operates in the UHF band in Europe), is a regulatory aspect rather than a technical advantage. This can make UHF PMR446 more accessible for casual or low-budget users.
The Debate:
Your belief that VHF might be more convenient than UHF in urban areas goes against the general consensus, primarily because UHF's shorter wavelengths are typically better at navigating the complex landscapes of urban environments. However, the effectiveness of either band can also depend on the specific scenario, including the types of buildings, the presence of natural obstacles, and the density of the urban environment.
In practical terms, the "convenience" might also relate to licensing requirements, with PMR446 offering a license-free UHF option in many places, making it more accessible for casual or business use without the need for regulatory compliance that VHF might require.
In summary, while UHF is generally preferred for urban communication due to better signal penetration and more available channels, the choice between UHF and VHF should be based on the specific requirements of the use case, including regulatory considerations.
I can't watch this with the hz instead of mhz...
Sorry I was very young when making this
Why do radios always put out less watts on UHF freq.
Because there is more chance of frying yourself or others.. Not a smart butt answer, but real. UHF is getting close to microwave frequency
Radios often put out less power on Ultra High Frequency (UHF) frequencies compared to Very High Frequency (VHF) frequencies due to several reasons related to the physical properties of radio waves, the design and efficiency of radio equipment, and practical use considerations. Here are the main factors:
Antenna Size and Efficiency: The efficiency of an antenna is related to its size compared to the wavelength of the signal it is transmitting or receiving. UHF wavelengths are shorter than VHF, leading to smaller antennas at UHF for a given efficiency level. However, as frequency increases, it becomes more challenging to design efficient antennas that are small enough to be practical and still perform well, especially for handheld or mobile units.
Component Losses: At higher frequencies, losses in the radio's components (like cables, connectors, and the antenna) become more significant. These losses are due to the skin effect, where the AC current tends to flow near the surface of conductors, increasing resistance with frequency. Designing components that minimize these losses at UHF frequencies is more challenging and expensive.
Path Loss and Propagation: UHF signals tend to have more line-of-sight propagation characteristics and are more affected by obstacles such as buildings and terrain. This can lead to higher path loss over distance compared to VHF signals, which can better diffract around obstacles. To mitigate this, UHF transmissions might be intentionally limited in power to avoid unnecessary interference, given their reduced effective range.
Battery Life: For portable devices, battery life is a crucial consideration. Higher frequency transmissions require more power to achieve the same effective range as lower frequencies. By limiting the power output on UHF frequencies, manufacturers can balance the need for range with the practical requirement for longer battery life in portable devices.
Regulatory Restrictions: Regulatory agencies in many countries impose limits on the power output of transmitters, and these limits can vary by frequency band. In some cases, the allowed power output might be lower for UHF frequencies than for VHF, based on considerations of spectrum management and avoiding interference between different services.
Heat Dissipation: Higher frequency transmissions can lead to more significant heat generation in the transmitter's electronics. Reducing power output on UHF helps manage heat dissipation challenges, particularly in compact devices where space for cooling solutions is limited.
In summary, the lower power output on UHF frequencies is a combination of technical and practical considerations, including antenna design challenges, component losses, propagation characteristics, battery life considerations, regulatory limits, and heat dissipation requirements.
Get rid of the echo, sooooo annoying, turned off after 2 minutes
Sorry was very young when I made this
So... working under this theory. The lower the frequency, the longer distance you can travel (when free of obstructions). This is why most HAM operators use HF and many military radios are in the HF band. Then why do all aircraft, military and civilian alike tend to stick to the UHF band? There are no obstructions up there. Serious question
Zachary King the Quality of the sound is much better
Zachary - correct, CB radio is HF, and under the Right conditions you can communicate under Skip conditions.
Zachary - Public Safety uses UHF because its useful in Dense Urban enviroments. but, in Fact they are slowly going up in Frequency, most recently some Police are moving to 700Mhz UHF. the reason is Better voice Clarity in Digital Mode. an in a few years they will go to 900Mhz Digital as well. One caviat is gone are the days of a Single tower serving a Police station. today they are becoming Digital with multiple Trunking Sites and some have IP based Repeaters as well. now a Security officer can communicate in a Giant Stadium or a 100 Story High Rise with HQ voice Clarity. Mutiple Digital Trunking and Repeater sites to counteract Obstruction Interference.
Zachary King: Commercial aircraft on long routes also use HF communications.....see link here:
www.g4nsj.co.uk/air.shtml
Civilian aircraft operate in VHF. 108-136 Mhz, look it up.
What about HF, I have a younger brother in the Military, can we use HF to talk to him when he's across the world in Afghanistan and I want to talk to him every day so why not use HF.
Michael Smith: You can talk around the world on HF with the right antenna and good propagation conditions. Back in the 1980s people in the UK and Europe were chatting to the USA on a regular basis with their CB radios. Conditions are not so good at the moment (May 2019) because we're at the bottom of the 11-year (Approx) sun-spot cycle which affects propagation but during the next year or two things will gradually improve as the next sun-spot cycle is about to begin and we'll be able to talk around the world again.
Using High Frequency (HF) radio for personal communication, especially to talk to someone in the military stationed abroad like in Afghanistan, is quite complex and subject to several considerations:
Licensing and Regulation: HF radio transmissions are regulated by government entities, such as the Federal Communications Commission (FCC) in the United States. To operate an HF radio, you typically need a license, and there are specific frequencies allocated for various types of communication. Unauthorized use of HF bands can lead to legal repercussions.
Military Communication Protocols: The military uses its own secure and encrypted communication systems for operational security. These systems are not accessible to civilians for personal communication. Military personnel usually rely on approved channels like military email, phone services provided at bases, or satellite phones for personal communication.
Technical Challenges: HF radio communication relies on ionospheric propagation to send signals over long distances. This method of communication is influenced by time of day, weather, and solar activity, making it unreliable for consistent daily communication. Setting up and operating an HF radio station also requires technical knowledge and equipment.
Alternatives for Communication: There are more reliable and accessible ways to communicate with military personnel stationed overseas. These include:
Military-approved communication services: Many bases provide services for soldiers to communicate with their families, including phone calls and internet access.
Email and social media: When internet access is available, email and social media platforms are common ways to stay in touch.
Postal mail: Traditional letters and packages, although slower, are always an option for sending messages and care packages.
Security and Privacy: Using unsecured communication methods to discuss sensitive information can pose risks to operational security. It's important to follow the military's guidelines on what information can be shared and through what channels.
For personal communication with someone in the military stationed in Afghanistan or elsewhere abroad, it's best to use the communication channels provided by the military or explore commercial options like international calling, email, or messaging apps that use the internet. These methods are more practical and secure for daily communication. If you're interested in HF radio for other purposes, like amateur radio, consider obtaining a license and connecting with the amateur radio community for non-commercial, hobbyist communication.
Sounds like he's in the bathroom!
I was not, sorry for the audio!
Speaking of receiving a signal, never record with distant microphones, bring them as close as possible.
If you have further questions or need clarification, feel free to reach out to us at 815-467-6464 or email me directly at cody@batteryjack.com. We're here to help ensure you charge your battery safely and effectively.
Its not his mic. he decided to record in a large space like a gym or warehouse. Or he thought putting reverb effects on the audio was cool.
Sorry was very young when making this
wavelength and frequency are just two ways to describe the same things. you cant have a long wavelength with a high frequency.
Wavelength and frequency are indeed two interrelated but distinct properties of waves, including electromagnetic waves like light and radio waves, as well as sound waves and water waves. Here's a breakdown of how they differ and how they are related:
Wavelength is the distance between two consecutive points in phase on a wave, such as from crest to crest or trough to trough. It is usually denoted by the Greek letter lambda (λ) and is measured in meters (m) or its submultiples like centimeters (cm), millimeters (mm), etc.
Frequency refers to the number of cycles (or wave crests) that pass a fixed point in space per unit of time. It is denoted by the Greek letter nu (ν) and is measured in hertz (Hz), where 1 Hz equals one cycle per second.
The relationship between wavelength and frequency is governed by the speed of the wave, which is constant for a given medium. For electromagnetic waves traveling through a vacuum, this speed is the speed of light (approximately
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meters per second). The formula that relates wavelength, frequency, and speed is: Where:
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v is the speed of the wave,
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λ is the wavelength, and
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ν is the frequency.
This formula means that as the wavelength (
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λ) increases, the frequency (
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ν) must decrease if the speed (
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v) is constant, and vice versa. Therefore, it is indeed correct to say that you cannot have a long wavelength paired with a high frequency for a given type of wave in the same medium, because increasing one decreases the other.
This inverse relationship ensures that if you know the speed of the wave in a medium, specifying either the wavelength or frequency inherently defines the other. This is why wavelength and frequency can be seen as two different ways to describe the same phenomenon, but they are distinct properties that describe different aspects of a wave.
Putting aside all the gaffs in video, why, then, if UHF passes through walls and obsticles better than VHF, why does the signal from my wireless router becomes nearly useless after passing through just 2 wood frame walls?
Because he is wrong.. UHF happens to bounce off walls quite well compared to VHF which is why it is better to use UHF in urban environments. VHF has more penetrating ability (due to its larger wave form) than UHF so its better in rural areas where it can penetrate though trees and other foliage better. There is more to it than that but it would be too much to write here.
The reason your wireless router's signal becomes nearly useless after passing through just two wood frame walls, despite UHF (Ultra High Frequency) signals generally having better penetration capabilities than VHF (Very High Frequency) signals, relates to several factors beyond the simple UHF vs. VHF comparison. Here are the key points to consider:
Frequency Band Used by Wireless Routers: Most wireless routers operate in the 2.4 GHz or 5 GHz bands, which are both well above the traditional VHF (30 MHz to 300 MHz) and UHF (300 MHz to 3 GHz) bands. Higher frequencies, like those used by your router, have a harder time penetrating solid objects compared to lower frequencies due to their shorter wavelengths. This is why even within UHF, lower frequencies penetrate better than the higher ones.
Material Absorption: Different materials absorb and reflect radio waves differently. Wood, for instance, can absorb some of the signal's energy, but usually, it's not significantly enough to severely degrade the signal. However, the actual impact depends on the thickness of the walls, the type of wood, and the moisture content within the walls. Moisture can significantly increase the attenuation of radio waves.
Interference and Signal Degradation: The presence of other devices operating on similar frequencies (e.g., other routers, microwaves, Bluetooth devices) can cause interference, reducing the effective range and signal quality of your wireless router. Additionally, every obstacle a signal encounters degrades its strength due to scattering, diffraction, and absorption, leading to a weaker signal by the time it passes through multiple barriers.
Router Antenna and Power: The design and power output of your router's antenna also play a critical role in how well the signal can penetrate obstacles. Directional antennas can focus the signal more effectively in a specific direction, potentially improving wall penetration in that direction at the expense of coverage in others.
5 GHz vs. 2.4 GHz Bands: If your router is set to use the 5 GHz band, it will experience more difficulty penetrating walls than if it were using the 2.4 GHz band. This is because, generally, lower frequencies have better penetration capabilities. The 2.4 GHz band can offer better coverage and wall penetration but is more prone to interference due to the number of devices that use it.
In summary, while UHF signals can indeed penetrate obstacles better than VHF signals, the specific frequencies used by wireless routers, along with environmental factors, material properties, and technical specifications of the router itself, all contribute to the real-world effectiveness of signal penetration through obstacles like wood frame walls.
Hi..puxing px 328 or baofeng uv6r is better high range???
Hello! Both the Puxing PX-328 and the Baofeng UV-6R are solid choices when it comes to two-way radios, each offering unique features that might make one more suitable for you depending on your specific needs.
The Puxing PX-328 is known for its durability and reliable performance in various conditions, making it a great option for those who need a sturdy device. It offers good battery life and clear audio quality, which is essential for effective communication.
On the other hand, the Baofeng UV-6R boasts a broader range of features, including dual-band functionality, which allows it to operate on both VHF and UHF frequencies. This can be particularly beneficial if you require the flexibility to communicate over different frequency ranges. It also typically provides a wider range of programmable channels and might have a slight edge in terms of range under optimal conditions.
For high-range communication needs, the choice between these two models might come down to specific use cases, terrain, and whether dual-band functionality is a priority for you.
If you need more personalized advice or further information to make your decision, please don't hesitate to reach out to us. We're here to provide free help directly via call or text at 815-467-6464, or you can email me directly at cody@batteryjack.com. We're happy to assist with any of your questions!
Thanks for the info. I coulda done without the echo tho.
You're welcome! If you have any more questions or need further assistance, feel free to ask.
Most repeaters are VHF. If both UHF and VHF are line-of-sight I'm guessing that VHF travels farther than UHF.
In general, VHF (Very High Frequency) radio waves tend to travel farther than UHF (Ultra High Frequency) waves under similar conditions, all other factors being equal. This is primarily due to differences in their wavelengths and how they interact with the environment.
VHF waves have longer wavelengths compared to UHF waves. Longer wavelengths typically allow VHF signals to propagate further over open terrain and through obstacles like buildings and vegetation. They also have better penetration capabilities through dense materials like concrete and foliage.
UHF waves, on the other hand, have shorter wavelengths, which makes them more prone to attenuation by obstacles and atmospheric conditions. While UHF signals may have better performance in urban environments with many obstructions, they generally have shorter effective ranges compared to VHF signals.
However, it's important to note that factors such as terrain, atmospheric conditions, antenna height, transmitter power, and receiver sensitivity all play significant roles in determining the effective range of radio communications. In some cases, UHF may be preferred over VHF for specific applications or operating environments.
Ultimately, whether VHF or UHF travels farther depends on the specific circumstances and conditions of the communication environment.
@@BigTimeBattery thank you!
reality is most UHF and VHF have a range limitation with a radial distance of 5km though reality is 2.5 km or less (uhf) within the 5 watt output..
outside the the scope of a repeater network you have range limits..
yup comnpanies do have the hertz designation MHz/GHz use..
7 foot mast is what i would use as the mast itself on a motor vehicle with the anteena on top with a strong note that the best reception you get will need a requirement of the feedline being insulated from the transmission signal whether you use HF. VHF and/or UHF as the source
It seems you're discussing several important aspects of radio communications, particularly focusing on UHF (Ultra High Frequency) and VHF (Very High Frequency) bands, their range limitations, the impact of physical infrastructure like masts, and the technical considerations for optimizing signal transmission and reception. Let's break down and clarify these points:
Range Limitations of UHF and VHF: UHF and VHF are both segments of the radio spectrum used for various communication purposes, including TV broadcasting, mobile radio systems, and amateur radio. The range of radio signals in these bands is influenced by several factors including the power output, antenna characteristics, and environmental conditions. For a 5 watt UHF transmitter, a typical line-of-sight range might indeed be around 2.5 km or less, depending on these factors. This range can be significantly affected by terrain, as UHF signals generally travel in a straight line and can be blocked by physical obstacles.
Use of Repeaters to Extend Range: Repeaters are used within radio networks to extend the range of communication beyond the direct line-of-sight limits of radio frequencies. A repeater receives a signal and retransmits it at a higher power or on a different frequency, allowing communications over greater distances and around obstacles. Without repeaters, the range of UHF and VHF communications would indeed be limited to the direct line-of-sight distance, which can be a few kilometers under typical conditions.
Companies and Frequency Designations: Companies that operate radio systems are assigned specific frequencies within the UHF and VHF bands by regulatory authorities. These frequencies are measured in Megahertz (MHz) for VHF and Gigahertz (GHz) for certain UHF applications. The allocation is intended to prevent interference between different users of the radio spectrum.
Antenna Mast Considerations: The height and placement of the antenna can significantly impact the range and effectiveness of radio communications. Using a 7-foot mast on a motor vehicle, as you mentioned, would elevate the antenna, potentially improving line-of-sight and thus the effective range of communication. The antenna's height above ground or any structures can make a significant difference in overcoming the curvature of the Earth and other obstructions.
Importance of Insulated Feedlines: The feedline, which connects the radio transmitter or receiver to the antenna, is crucial for efficient signal transmission. Insulating the feedline from the transmission signal helps prevent loss of signal strength and interference, ensuring that the maximum possible amount of power is transmitted through the antenna. This is important across all frequencies, including HF, VHF, and UHF.
In summary, optimizing radio communication, especially in the UHF and VHF bands, involves a careful consideration of transmitter power, antenna design and placement, use of repeaters, and ensuring quality components in the signal transmission path. Proper setup and maintenance can significantly impact the effectiveness and range of radio communications, even within the inherent limitations of these frequencies.
@@BigTimeBattery noting the only time you see distance length on vhf and uhf is because you have a repeater in use pushing north 70 watts however you are still governed at 5 watt input and you are talking about what is a trunking service in deployment, i was speaking in general terms average last band of communication is roughly 5km in point to point application
@@jasonhowe1697 The distinction you're making about repeaters and their effect on communication range is important:
Repeater Usage: Repeaters are used to extend the range of VHF/UHF communications. By receiving a signal and retransmitting it at a higher power and/or from a better location (usually elevated), repeaters can significantly increase the effective communication distance beyond the typical line-of-sight limitations of VHF and UHF frequencies. When you mention the repeater pushing north of 70 watts, you're likely referring to the output power of the repeater. Repeaters can indeed broadcast at much higher power levels than the typical handheld or mobile unit.
Power Limitations: There's a mention of being "governed at 5 watt input," which likely refers to the maximum legal power output for certain types of VHF/UHF transmitters without a specific license or for particular classes of operation. For example, many handheld transceivers (walkie-talkies) are limited to around 5 watts of output power to prevent interference with other users and services.
Trunking Services: Trunking is a method used in communications systems (including radio) to provide more efficient use of resources. In a trunked radio system, channels are dynamically allocated for communications as needed rather than being permanently assigned to specific users or groups, increasing the system's efficiency. Trunking systems can be deployed in both VHF and UHF bands but are more complex and typically used by organizations with extensive communication needs.
Range of Communication: The last point about the "last band of communication" being roughly 5km in point-to-point application likely refers to the typical range you can expect from direct (simplex) communications without the aid of a repeater, under average conditions. This range can vary significantly based on the terrain, antenna type and height, and atmospheric conditions. In urban areas or areas with many obstructions, the range may be less, whereas in open, flat areas, the range could be greater.
In summary, while direct point-to-point VHF/UHF communication might have a range limitation of around 5km under typical conditions, the use of repeaters can substantially increase this range, albeit with the mentioned power restrictions for individual transmitters. Trunking services, meanwhile, refer to a different aspect of radio system deployment aimed at improving channel usage efficiency rather than directly affecting range.
Hi. Big fan here! Just a beginner radio user question. The repeater is located somewhere here in the Philippines, they are using UHF Radio's but I don't understand why portable radios can't pick up any audio from the transmitting person even if they are just 2-5 feet away from the same room? Radio base are operational, antennas are installed but I can't understand why they can't receive the person who is transmitting? Comments are highly appreciated, thank you!
thank you for your question and support! Your issue with portable radios not picking up transmissions even at close distances in the same room can be puzzling, especially considering the setup seems correctly installed with operational bases and antennas. There are a few potential reasons why this might be happening:
Antenna mismatch or issues: Even though antennas are installed, there might be a mismatch in terms of the type of antenna being used, its orientation, or even a malfunction. Antennas need to be compatible with the frequency band being used (in your case, UHF). Ensure the antennas are properly tuned for UHF frequencies.
Interference: In a UHF band, especially in a densely populated area or an area with many electronic devices, interference can be a significant issue. Other devices operating on or near the same frequency can drown out the signal you're trying to receive.
Squelch settings: The squelch function on radios is designed to silence the speaker when no signal is being received. If the squelch setting is too high, it might not open for transmissions, especially weak ones or those from very close by. Try adjusting the squelch setting to a lower level to see if it helps.
Transmitter power: If the transmitting radio's power setting is too low, it might not be strong enough to be picked up clearly by the receiving radios, even at close distances. However, being too close can also sometimes cause issues if the radios are designed to operate over greater distances.
Obstructions or environmental factors: Even in the same room, certain materials or structures can block or degrade radio signals. This is less likely if you're just 2-5 feet away, but it's something to consider depending on the specific environment.
Radio defects or configuration issues: There might be a defect in the radios or a configuration issue. Ensure that both transmitting and receiving radios are correctly configured to use the same frequency and privacy codes (if applicable).
Receiver desensitization: If the transmitting radio is very close to the receiving radio, the strong signal might desensitize the receiver, making it temporarily unable to receive signals. This is also known as receiver overload.
To troubleshoot this issue, I recommend starting with the squelch settings and ensuring the antennas are correctly matched and oriented for UHF frequencies. Then, check for any potential interference and experiment with different settings and positions to see if the situation improves. If possible, testing with different radios or antennas can also help isolate the problem.
That’s new, MHz is Hertz?
Sorry I was very young when making this was still learning
Great video,
Sir, please tell me,which one frequency use vhf or uhf,for the mobile listening conversation?
Thank you for your kind words about the video! Regarding your question about mobile listening conversations, both VHF (Very High Frequency) and UHF (Ultra High Frequency) can be used for mobile communications, including listening conversations.
The choice between VHF and UHF often depends on various factors such as terrain, range requirements, and available frequencies. Here's a general comparison:
VHF (Very High Frequency):
Frequencies typically range from 30 MHz to 300 MHz.
VHF signals generally travel farther over open areas and have better penetration through foliage and buildings compared to UHF.
It's commonly used in outdoor environments, rural areas, and for long-range communication.
UHF (Ultra High Frequency):
Frequencies typically range from 300 MHz to 3 GHz.
UHF signals are better at penetrating dense urban environments and obstacles like buildings.
It's often used in urban areas, indoors, and for shorter-range communication.
For mobile listening conversations, either VHF or UHF frequencies can be suitable, depending on your specific requirements and the environment in which you'll be using the communication equipment. It's essential to consider factors such as range, interference, licensing requirements, and available equipment when choosing the appropriate frequency band for your mobile communication needs.
Had to shut it off 30 seconds in, reminds me of going down freeway and the window is open wrong making that ear drum pound sound.
Sorry, if you have any questions call or text us at: 815-467-6464
Gotta love the Chicken band echo audio and the mis information (MHz= hertz?)WRONG!!!
Sorry for any mis information I was very young at the time of making this video and still learning!
VHF is widely use in marine use
Yes
I always thought that lower frequencies traveled through instructions better than higher frequencies. (Given the same power rating). Opposite of what is explained here.
I thought higher frequency is better in busy areas because you have more bandwidth and therefore more available channels and less interference in high traffic RF environments. ?
Can anyone confirm/deny and explain?
Your understanding is partially correct, but there are nuances to consider.
Lower frequencies do indeed have better propagation characteristics in terms of traveling through obstacles like buildings and walls, making them more suitable for long-range communication and penetrating obstacles. This is due to lower frequencies experiencing less attenuation (loss of signal strength) when encountering obstacles.
However, higher frequencies offer advantages in different scenarios. In busy urban areas or high-traffic RF environments, higher frequencies can provide more available bandwidth, allowing for more channels and higher data rates. This is because higher frequencies have shorter wavelengths, which enable more efficient use of spectrum and smaller antennas, thus allowing for more channels to be packed into the available bandwidth.
So, in summary:
Lower frequencies are better for long-range communication and penetrating obstacles.
Higher frequencies are advantageous in busy areas due to more available bandwidth and channels, leading to less interference and higher data rates.
Both lower and higher frequencies have their own set of advantages and are used in different applications depending on the specific requirements of the communication system.
If you need any more information call or text us at: 815-467-6464 or email me directly at cody@batteryjack.com
Be nice to use metric measures as well for people outside USA/UK.
We will consider in the future - If you have any other questions please feel free to call or text us at: 815-467-6464 or email me directly at cody@batteryjack.com
hi ,
Does anyone Has Made this TEST or KNOW for SURE ,.
if You Have 2 Radios 1 VHF & 1 UHF , both Radios Tx the Same Power 5 W ,.
Clear Line of Site so NO obstruction ,.
Which one will Cover More Distance or Which one will Have a Longest Distance of Receiving & Tx ,..
Thank You ,..
VHF being the longer cycle, it will slightly bend more then the UHF. UHF is almost, and I say almost here, line of sight, where VHF will bend a bit toward the horizon for a bit of a longer distance
Thank You , Now I have an Idea which model to use , Regards
VHF also has less free space loss than UHF.
THANK YOU ,...
The question of whether a VHF (Very High Frequency) or UHF (Ultra High Frequency) radio will cover more distance under the conditions of transmitting with the same power (5 watts) and having a clear line of sight involves understanding how radio wave propagation differs between these frequency bands.
Frequency and Wavelength: VHF operates in the frequency range of 30 MHz to 300 MHz, while UHF operates in the range of 300 MHz to 3 GHz. This means that VHF waves are longer than UHF waves. Longer wavelengths tend to travel further because they are less susceptible to attenuation (reduction in power) and can diffract around obstacles more effectively, though the "clear line of sight" condition minimizes this factor.
Line of Sight Propagation: Both VHF and UHF signals primarily propagate via line of sight. This means that the signal will travel until it encounters a physical obstruction or the curvature of the Earth limits further travel. Given a clear line of sight and the same power level, the difference in distance covered is not primarily due to the frequency but rather to how these frequencies interact with the atmosphere and obstacles.
Atmospheric Absorption: UHF signals are more prone to absorption by atmospheric moisture and rain than VHF signals. However, under clear line of sight conditions with no obstructions, this factor is minimized.
Earth's Curvature: For both VHF and UHF, the radio horizon (the point beyond which the signal will not reach due to the curvature of the Earth) is a limiting factor for line of sight transmission. However, the longer wavelengths of VHF can slightly extend beyond the visual line of sight due to diffraction, giving VHF a potential edge in some scenarios.
Practical Considerations: In practice, the difference in coverage distance for VHF vs. UHF with the same power output and clear line of sight might not be significantly different. Both are limited by the line of sight, and the actual distance covered will depend on the specific conditions, including the height of the antennas above the ground. Higher antenna placement extends the line of sight for both types of frequencies.
In summary, under the specific conditions mentioned (same power output, clear line of sight, no obstructions), the difference in distance coverage between VHF and UHF is likely to be minimal. Theoretically, VHF might have a slight advantage due to its longer wavelength allowing for slightly better diffraction and less atmospheric loss, but in practical terms, especially with clear line of sight, both frequencies should perform similarly in terms of distance covered. The most significant factor in extending the range of either frequency band would be increasing the height of the antennas to improve the line of sight.
I just couldn't get past his saying 30 hertz instead of 30 mega hertz!
But that was lost on people like me who have no clue what any of that means.
I was only trying to understand the difference between UHF and VHF because I found an old TV I had in storage and remember watching it as a kid. It had two channel knobs. One for UHF and the other VHF. I never understood the difference. This kind of cleared that up for me.
Sorry I was very young upon making this was still learning
Why didn’t correct these errors before posting?
3Hz does not equal 3000MHz
This is very inaccurate information.
Sorry I was very young upon making still learning a lot! If you need any help message me or email me at: cody@batteryjack.com or call or text: 815-467-6464
What is the meaning of high frequency
HF is part of the radio spectrum that is able to be refracted in the ionosphere. In laymans terms, HF signals travel up to the edge of space, then refract (like light shining into water) back down to the earth and land hundreds or thousands of km away from where they were sent. Its much more complicated than that in reality, there are lots of factors to consider including space weather but its what we use for long distance communication links. HF is also not very reliable (its sensitive to time of day, season and space weather) and is also very low bandwidth so very slow data when trying to send digital email type messages.
"High frequency" typically refers to something that occurs frequently or repeatedly within a short period of time. In different contexts, it can have specific meanings:
Electromagnetic Spectrum: In physics, "high frequency" refers to a high rate of oscillation or wave cycles per second. This is often applied to electromagnetic waves, such as radio waves, microwaves, or light waves. The term is used to distinguish waves with shorter wavelengths and higher energy levels.
Finance: In financial markets, "high frequency trading" refers to the practice of using powerful computers to execute a large number of trades at extremely fast speeds. This is often done in fractions of a second and relies heavily on algorithms and automation.
Data Analysis: In data analysis or statistics, "high frequency data" refers to data points that are collected at a rapid rate, often at intervals of seconds or minutes. This type of data is useful for analyzing short-term trends and fluctuations.
Communication: In communication systems, "high frequency" may refer to radio frequencies used for broadcasting, such as those in the HF (High Frequency) band, typically ranging from 3 to 30 megahertz (MHz).
In summary, "high frequency" generally denotes a rapid or frequent occurrence, whether in the context of waves, trading, data collection, or communication.
Bang on both Vhf and Uhf got good and bad points, all depends on the local environment your going to be working from.
choose the right frequency for nearby object pathways so the radio waves get through better.
Some frequencies are far better than others baring in mind the range you will be working + weather conditions.
A few things you didn't quite describe right, but hey we get your drift. :-))
So in the mountains VHF would be better and for urban use -> UHF ?
@@777Zubi generalising yes, and the range you intend to try and work, and type of obstacle path obstructions and intervening terrain that are going to be encountered.
All situations differ, both can be equally effective in close range up to a few miles, then VHF will be usually get out further.
A bit like horses for courses.
It sounds like you're discussing the considerations for choosing between VHF (Very High Frequency) and UHF (Ultra High Frequency) bands for radio communications, possibly in the context of two-way radios or similar communication devices. You're absolutely right that the choice between VHF and UHF depends on several factors, including the local environment, the presence of obstacles, the desired range, and weather conditions. Here's a bit more detail on each factor:
Local Environment and Obstacles: VHF waves travel further on the ground and can penetrate through trees and foliage somewhat better than UHF, making VHF a good choice for rural or outdoor environments with fewer obstacles. UHF, on the other hand, has a shorter wavelength, which allows it to navigate urban environments and inside buildings more effectively by bouncing off walls and passing through structural materials more easily.
Range and Power: While both VHF and UHF can provide excellent range, the effectiveness of each band can be influenced by the power of the transmitter, the sensitivity of the receiver, and the height of the antennas. Generally, for the same power output, VHF might offer a slightly longer range in open, unobstructed environments, while UHF might provide better coverage in densely built-up areas.
Weather Conditions: Atmospheric conditions can affect radio waves, though the impact might be more pronounced at frequencies higher than the typical VHF and UHF bands. However, severe weather conditions can still affect the performance of radio communications, particularly over longer distances.
Frequency Selection: Within both VHF and UHF bands, certain frequencies may perform better than others due to a variety of factors, including licensing requirements, band congestion, and specific local regulations. It's important to choose frequencies that are appropriate for the intended use and comply with local regulations.
Very good 😊
Thank you!
"Cody" ? Psh. We all know you're Bob Lazar.
Not sure who that is? I am cody
The lack of mega hertz
Sorry I was very young when making this was still learning
3 HZ = 3000 MHz ??? REALLY???
MHz is Megahertz, NOT m-h-zee 😁
Try it again!
Sorry was very young when making this
я тебя понял
If you have any more questions or need further clarification, feel free to ask!
Boy did you miss that one I don’t even know if he finishes video mhz = megahertz not hurts
sorry was very young when making this
Helli sir... Thanks for this video :) . I'm mobile dj... N also i do sound service ...I just bought vhf wireless microphone ...plzz suggest me.. In which type of program I can use for best results ??? Can i exchange with UHF wireless microphone... Or VHF is also useful ???? Ur best suggestion plzz
Hello! It's great to hear about your recent purchase of a VHF wireless microphone. As a mobile DJ and sound service provider, having the right equipment can significantly enhance the quality of your services. Here's a bit of guidance on using VHF wireless microphones and considering an exchange for UHF models.
VHF Wireless Microphones
VHF (Very High Frequency) microphones operate in the frequency range of 30 MHz to 300 MHz. They are generally less expensive than UHF (Ultra High Frequency) microphones and can be a good choice for certain applications. Here are some scenarios where VHF microphones can be effectively used:
Small to Medium-sized Events: For gatherings where you don't expect to deal with a lot of electronic interference, VHF microphones can work well.
Speeches and Announcements: If the primary use is for speeches or announcements where ultra-high fidelity is not critical, VHF microphones can serve well.
Fixed Locations: In environments where the setup doesn't change much and you can control interference factors, VHF can be reliable.
UHF Wireless Microphones
UHF microphones operate in the range of 300 MHz to 3 GHz. They are typically preferred for professional audio setups due to several advantages:
Better Quality and Reliability: UHF microphones generally offer higher sound quality and are more reliable in diverse conditions, especially in environments with lots of RF and electronic interference.
Greater Range: They can operate over longer distances, making them suitable for large venues.
More Frequency Options: UHF offers more frequencies to choose from, reducing the chances of interference.
Can You Exchange VHF for UHF?
Exchanging your VHF for a UHF wireless microphone could be a wise choice if you're looking for versatility, better performance in crowded RF environments, and higher sound quality. However, this depends on:
Budget: UHF systems tend to be more expensive, so consider if the investment aligns with your budget and the scale of your events.
Event Types: If you frequently work in large venues or locations with high RF interference, upgrading to UHF could significantly benefit your performance.
Compatibility: Ensure that any new system you consider is compatible with your existing audio setup.
Conclusion
VHF microphones can still be useful, especially for smaller events or in settings with controlled environments. However, for a mobile DJ and sound service provider who might encounter various performance conditions, a UHF system could offer more flexibility and reliability.
Before making a decision, consider the types of events you service most often and whether the benefits of UHF justify the additional cost. It might also be helpful to rent a UHF system for a big event to compare its performance against your VHF microphone firsthand.
10-4
If you have any other questions please feel free to call or text us at: 815-467-6464 or email me directly at cody@batteryjack.com
MHz “or hertz” don’t you mean Mega-hertz?
Sorry was very young when I first made this and still learning a lot about the two way industry.
For direct assistance, feel free to call or text us for free help at: 815-467-6464, or email me directly at cody@batteryjack.com. Your satisfaction and confidence in your purchase are our top priorities.
What? 30 Mega Hertz would be 30 million hertz not 30 hertz
Sorry I was very young when making this was still learning
OMG mhz becomes hertz lol
If you have any other questions please feel free to call or text us at: 815-467-6464 or email me directly at cody@batteryjack.com
Vhf is usually marine radio. UHF is more truckies
Correct- If you have further questions or need clarification, feel free to reach out to us at 815-467-6464 or email me directly at cody@batteryjack.com.
"Who said who dat when I said who dat?"
If you have any other questions please feel free to call or text us at: 815-467-6464 or email me directly at cody@batteryjack.com
Boss, bumili ako ng wireless microphone. Noong sinaksak ko sa speaker, namamatay speaker ko. Bakit kaya? Salamat, lods. Subscribe ako sa iyo pag nasagot mo tanong ko. Salamat uli lods.
Maaaring ang iyong wireless microphone ay mayroong hindi tugma na output o voltage level na hindi angkop para sa iyong speaker. Kapag sinaksak mo ang mikropono sa speaker, maaaring ito ay nagbibigay ng labis na lakas ng signal o voltaheng hindi kayang tanggapin ng speaker, na maaaring sanhi ng pagkasira nito.
Para maiwasan ang ganitong isyu, maaari mong subukang gumamit ng isang preamp o mixer sa pagitan ng wireless microphone at speaker. Ang preamp o mixer ay maaaring mag-regulate ng mga signal bago ito mapadala sa speaker, upang maiwasan ang posibleng pinsala sa speaker.
Kung hindi mo sigurado kung anong mga setting o kung paano magkakasundo ang iyong mga aparato, maaari kang humingi ng tulong sa isang eksperto sa audio o isang propesyonal na teknikalya. Pagsusuri sa mga tampok at mga limitasyon ng iyong mga kagamitan ay mahalaga upang maiwasan ang anumang pinsala sa mga ito.
Sana nakatulong ako sa iyong tanong! Kung mayroon ka pang ibang katanungan, huwag kang mag-atubiling magtanong. Salamat sa iyong suporta, at sana ay magkaroon ka ng magandang araw!
I do not know why you record your audio in bathroom .!!!!!
Bahram Kashanian lmao
🤔
He had to go anyway so...
Sorry was very young
get the audio frequencies right first, then move on to HF,VHF, etc.
Will do, sorry I was very young upon making this, was just learning about 5-6 years ago.
You are on the right path, learning and improving. Audio quality is the hardest bit to get right. RE: the subject.... I do forget that much of this is totally new young viewers. I was canibalizing old vacuum tube TV's as a teen to make HF transmitters. In the navy I radio intercept spied on Russian ships in the Atlantic. Now I use an SDR and yagi to hunt emitters on 433.9 MHz. An interesting hobby, radio. Good luck. @@BigTimeBattery
@@glenbirbeck4098
Wow, your story is super cool! Starting off by tinkering with old TV tubes to make transmitters, and then moving on to some serious spy stuff with radio intercepts on Russian ships - that’s straight out of a movie! And now, using SDR and yagi antennas to chase signals? That's some high-level hobbyist action. It's amazing how you've seen and shaped the evolution of radio tech through your adventures. It's a great reminder for folks like me, who might be just dipping our toes into this world, that there’s so much history and potential to explore. Plus, it’s comforting to know that getting the audio just right is a tough nut to crack for everyone. Thanks for sharing your journey and the encouragement. It makes me even more excited to keep learning and experimenting. Good luck with your signal hunting - can’t wait to hear what you'll discover next! - Cody
TeraHertz quantum radar for hunting saucers, my next project.@@BigTimeBattery