As an Electrical engineering student I really enjoy these more technical videos. Good to see some of the things we learn in class in practice. Cheers Bruce.
I would like to see how you bind the Rmilec and how to set up the 2.4g booster, It is great to have you back! thank you for all your videos. I did not know a thing till I found you on youtube.
Hi Bruce, did you show a usual Wifi booster? Does the frequency band of a 2.4 GHz Wifi booster exactly fits to our 2.4 GHz RC output band with its 80 channels?
Im soo glad you made this video. i started off wondering how to increase the range of my rc link and i got a u.fi to a sma adapter for my futaba 2.4 so i could put what ever antenna i want on it. using a 8db patchi i could fly out to 2miles no problems. to get even more i got a 500mw wifi booster with the 8dbi i got 10km easy. and i thought why doesn't every one do this it's so easy and so cheap but there is not much info on forms or in videos on this topics. so good job and keep it up
Great kick off to 2013 Bruce! Here in the USA, 420-450MHz is the 70cm ham band. I've been hoping to use my license to get a UHF module for my 9X. So the future info you've eluded to in this video is very exciting to me. Thanks!
I'm using an L-Com 2.4GHz 1-watt booster with an antenna on the roof of my SUV. Great solid reliable range! Now I'm looking for a 2W booster with a user selectable switch for 1W and 2W. Then fly most of the time at 1W. If at the edge of range and getting flaky link, I can temporarily boost to 2W to turn the aircraft around and return to 1W for normal flight. The switch would allow one to "feel" the range of the radio without necessarily RTL. In combination with RTL, it would be even better.
yup me to,, so stoked...you get what you pay for..another good thing with DL, the support is 110% either it be from Mike himself, DL's testers, or the community!
concerning the 2.4ghz booster , can I use the same type of booster on my 2.4ghz fpv camera , the camera has a 2.4 ghz transmitter and I use my phone for the fpv video , I get plenty of range out of my RC transmitter but lose video signal . I was planning on using a 2.4Ghz Signal Booster Amplifier For DJI Phantom , it looks small enough to install in the camera housing , but if not I can mount it inside the drone , so would that be a go or no go , and if no , why not ? any thoughts on that one ?
Great video. The biggest drawback with UHF, IMO, is that you need a UHF receiver in each of your planes. With boosting all of your planes will work without any upgrades.
You won't regret it. I flew with 72mhz for 8 months, constantly dealing with RTL glitches at random distances (sometimes even 1km or less!). I have not had a single RTL glitch in about 30 flights or so, out as far as 7km. What is stopping me from going further? Battery capacity, and even moreso, video range! RC range is no longer my concern!
Bruce, So glad your back. How about using amateur radio bands for control and video links? In the USA we can use 50MHz to control models and with license in theory we can output 1500 watts. We can also use 430Mhz ish for video. I always wondered if it was feasible to use such bands to gather further range. I am little rusty on my ham rules but i believe the technology is there to do it. Maybe the size is not...
Interesting question. I bought this system 6 months ago but i was unable to use it seeing I was so busy at work. All the people I see on youtube using it says how good it is but in the forums persons that do not have it or have the more expensive system say that RIMLEC is the worse of the lot. So i look forward to a review from Bruce.
Legal limit on power probably depends on the country. In the US, there is a 1 watt 'hard' limit that even people with amateur radio licenses can't exceed. The WiFi booster would get you in trouble here if you start crashing wireless routers and the owner notices that "it only happens when that guy shows up and flys his model airplanes."
you have done reviews on all of the FPV equipment except for long range safety and GPS trackers. I lost my Bix 3 and later purchased a PinPointRC Black box, the next time I crashed my Skywalker I found it within minutes. you should ask them to do a review for them
Hi Bruce Nice to see a new video of you! RMILEC its not very good, or at least I havent heard very good reviews about it. Here in Argentina we most use dragon link for the rc, and 1.2ghz 800mw video, with 6dbi antenas for close flights(up to 3 or 4 km), and jsut a patch antena to fly far away. I´ve seen they go up to 30km without anyproblem at all. In my city a guy went to 75km away(and back) without anyproblem with a thomas LRS. Big hug Bruce!!
I watched some videos of the TBS crossfire using their own protocol, CRSF or something. Range is easily up to 40 km, freq is 900mhz and latencies lower than 150ms. But it comes at a price, minimum 99 dollars. You could look into that.
Might be useful (from Cisco data): 0 dBm = 1mW 1 dBm = 1.25 mW 2 dBm = 1.56 mW 3 dBm = 2 mW 4 dBm = 2.5 mW 5 dBm = 3.12 mW 6 dBm = 4 mW 7 dBm = 5 mW 8 dBm = 6.25 mW 9 dBm = 8 mW 10 dBm = 10 mW note that it is a log scale, not linear. ... BUT: if your transmitter does not put out the power, the larger antenna does not increase transmitter power as indicated... it will only increase output up to the limit of the power (mW) available. In other words, a system designed around a 3 dBm antenna most likely will not reach 3.12 mW simply by adding a 5 dBm antenna.
+Devin Duncan yes its log, 0 dBm is the base power, now 3 dBm is actually double power gain. a system that outputs 1watt @50ohm with a 0dB gain will create a radiation of 1 watt equivalent, if you increase your antenna gain by a factor of 3dB, your radiated power will be equivalent to twice or 2 watts.
Really enjoy your videos! Makes me want to visit the land down under. Question about the booster... Would the antenna still provide some gain if the power was not applied to the booster (meaning booster connects to radio and antenna, but power is on a switch and the switch is off). What I have in mind is using the boost as an insurance policy (flip a switch and my range gets extended). Because it could cause problems for other people to have on all of the time, I would rather use high gain antennas and modest power most of the time, and the booster just when I need it. But I want the switch to the booster to be a simple toggle switch with no antennas to change. Do you know if there are any repercussions with this approach - either significant loss or possible damage to the transmitter module when the power to the booster is off?
Hey Bruce, ibcrazy makes a brand new notch filter you can put in between the UHF module and antenna. Cheap too. The key to success with lrs is to shield wires, spacing components, as many do not get along well and understand what causes the harmonics so you may put in the proper filters. (high pass, low pass, saw, notch) btw Your going to love the penguin. Good luck trying to get her to land, she floats forever. The larger motor allows a 4s and has more than enough power to push her vertically.
I've had an RMILEC for over a year with no problems , I got rid of that stupid long sectional antenna and bought a RH771 From ........... but the module got quite hot........I ended up buying a RMILEC SRC771 ,now it runs cool and is much better looking ....Good luck over the volcano !
Looking forward to your review on the rmilec unit. I've had pretty good luck with it with 5.8ghz video, but seems less on 1.3ghz video. When I say good luck, I fly an fpv quad, and have been out to just at, or slightly beyond 1 mile. Thanks for your videos!
Do you need to reduce the power output of an EU spec Spektrum DX8 before connecting it to the 2.4ghz booster? hope you can help. keep up the great videos.
1dB, dBm is a measure of power (0dBm = 1 milliWatt, 30dBm = 1 Watt). Other than that you are correct, 1dB loss for each connector in the system is typical at 5.8GHz. You can get much better connectors down to 0.05dB loss, but they are crazy expensive, and only really used for precision measurement (eg. calibration labs).
What spectrum analyser did you get? Also, just a warning for some, be careful and check your local laws about using RF boosters, some countries there are restrictions on using them.
It's interesting because RMILEC seems to have a bad reputation from people who have never used it. Anyone that's ever told me its no good, the first question I've asked is "Do you have first hand experience" and to this day the answer has been no. I've seen it used a number of time, even out to 25klms and its been rock solid. Would be interested to hear your thoughts on this one Bruce
well done ,very informative ,cheers from the USA .So a 2.4 radio of one brand or more expensive model wont give you any more range ? I guess it would have to conform to regulations,around the world.
Bruce, Thanks for your videos. Question. You mention by changing the stock antennas only, you can affectivly gain about 40% in range. But what is the approx gain in distance when using the 2 watt wifi booster vs the 60mw transmitter power? Assuming you are using the same gain antenna. Thanks.
I am very interested in the RMILEC test as I have purchased one along with the fibre optic kit for its receiver (while it was available). Very interested in the test and what filtering i made need to do. I bought a Nagoya type whip antenna for it because every review i have read is that the telescopic antenna that comes with it is crap.
Hi Bruce, great video! You mentioned other sources of interferance onboard the aircraft interfering with the radio link, what about problems with servos? Maybe something to look into for us that I'm interested is servo wire length problems with interferance sources. I've had problems with gas engines and long servo wires causing one servo to twitch, and it seems just changing the length of the extension helped. Could you show us some ways of predicting and eliminating that kind of interference?
Hi Bruce, I found this video very useful! I am looking at extending the range of my FPV setup, and have been considering DragonLink, I will be very interested to see what you think of that vs the RMILEC gear. Also I'd be keen to know what kind of gear you've tested for the video link - tx, rx, antennas etc. Finally, what is the open source radio gear from hobbyking you mentioned in the video, do you have a link to this? Thanks again and keep up the good work! btw are you a Kiwi/Aussie?
Interesting video as usual Bruce but perhaps you might have pointed out that operating RC model control on 2.4gHz in some countries means limited power. I think in the UK it's 100mW (not sure, it may be less) but it's certainly less than 2 watts!
Good video Bruce. Now, as to where you have been recently. You tell us that you have been reworking your workshop then you produce a pair of sheers. Truth be told the festive season has always been a busy one for you ... hasn't it Santa :-)
Hi Bruce (and Barry) :-) Any chance you could do a short video explaining how plug in modules work. I've heard of free sky but what advantage does that give me over for example the standard turnigy 9x. What other module types are available etc. Thanks in advance. Steve - Jersey
I would love to see one day electrically steerable phased array antennas for model aircraft. this is basically a high gain antenna that automatically points at the transmitter/receiver, but instead of mechanically turning, uses electronics in the antenna to change it's beam pattern. This would effectively make the range limited only by line of sight and flight time. Combining a 30dBi ESPA on the aircraft and transmitter would give you a 60dB gain to link budget.
Good day, Thanks You very much for Your videos! I'm very new to RC hobby's and it all seems like something extremely complicated to understand for a person who never was involved with RC or radio world. May I ask You to be kind enough to advise me what should I purchase in order to increase my Dji Phantom Vision+'s RC range and FPV range. The RC is 5.4GHz, and the wifi range extender for FPV is 2.4GHz. Thanks You in advance, Sincerely Alex
As a rule you lose 1dBm per connector and depending on what cable you use for the tail, there will be a data sheet stating what the losses are per meter of said cable. So on your quad, you will probably have minimal loses. If your really wanting to know that your Ae system is effecient you could try and sweep it for VSWR, but thats specialized kit unless you work in telecoms. In all as long your connectors and cable are good quality and terminated properly I would say don't worry about thelosses
Ahh people just get frustrated with the shipping time of HK (especially in the USA) so dont be to hard on them because it is pretty scary when you spend $500.00 or more and it takes 2 months to get your stuff! I am learning to relax a bit more now that I am more experienced ordering thru HK but man it still scares me too sometimes because you always feel like you have been forgotten or that something has gone wrong w/ your order or something. I can sympathize with their frustrations I guess.
Hi there love all your vids and they have been very help full but I do have one thing and that is what would the range be for a spectrum DX8 plus how do I get better rang with my for long range FPV
great video! i personally want more ads on your channel. i think this because we want you to be able to make more reviews with the money you make off the videos.
Great vid Bruce! I've got the dirt cheap Orange openlrs from HK. Haven't tested it properly yet, just benchtested the basic workings and failsafe. Flashed with latest thUndeadMOD firmware, seems ok thus far. I hear Dragonlink has deliveryproblems and worse at present, if you're considering DL, I would suggest you have a look at (and consider) Rangelink. It's cheaper and I havent heard any negative feedback on that system. Quite a few here in Norway that runs that system and are happy with it
Great vid, Bruce! It's too bad that people can't fly UHF in their country because of fear of getting fined. I have lots of videos on my channel of my dragonlink, which gets the theoretical 30km range you have heard of. I have taken my skywalker out to 10km with not a single failsafe. The words "glitch", "failsafe", and "intereference" do not exist in my dragonlink's vocabulary. It just does not happen. Very reliable systems.
Have you tested the range with the 5dB antenna? My understanding (from my experience in audio) was that every 10 dB is equivalent to doubling the volume level. I'm not sure how that translates to radio so you may want to try and confirm that you can actually get 3-6km range with the bigger antenna
Very difficult to get good coupling. It's possible but you might lose a lot of signal before it gets to the booster, if the booster has enough gain to make up the loss, it might be worth it. Also you want to start with a clean signal, any noise at the transmitter is noise at the receiver and reduces performance, and the cheap transmitter might not have as clean output as a good radio with a removable antenna.
did you watch the video? bruce said he will review gear as he gets it. im sure (as he's done before) he will let us know his thoughts on each system compared to another he has reviewed, when he gets them
In oz we have 2 major carriers 99% coverage and uptime or close to it.. Yes you would run into problems with the modem being assigned a different IP every instance it logs on or connects. An easy fix if diverted through a proxy VPN.. If connection is lost gps can still auto return to home..
I know nothing about signals and thanks for the education. I was wondering would it work if i connect a huge fish bone tv antenna or maybe a small tv dish satellite? With the amp that. Comes with it? Wanted to test some range limit on a self build quad.
Hi Bruce, Could you please do an 'airframe efficiency review' as mentioned in your video. I am interested in which plane will achieve the greatest overall distance and how far it will fly on 1 watt of power. Thanks
How can i customize a little Hubsan X4 FPV for a thing so i can plug an antenna into and also what shall i get just to increase the range a little bit looked on ebay but dont really understand this stuff as iam a begginer
I know this video is old, but I've recently got a turbowin RY-2.4 to boost my 2.4g signal not for range but for resistance against interference from wifi and 2.4g towers nearby. Model is going wonky and crashing at certain area in the sky. I wonder if these boosters would help eliminate or reduce risk of crashing?
I've come to depend on your well presented, knowledgable reviews and thank you much.
As an Electrical engineering student I really enjoy these more technical videos. Good to see some of the things we learn in class in practice. Cheers Bruce.
Bruce, I simply love the way you turn complicated things into something quite easy to understand. Thanks!
Ive got time for this guy , he knows what he's on about
Fantastic explanation of how to increase FPV range. Yes that would be five thumbs up in my book! Thanks Again! JR
I can't afford to buy any more RC stuff but I'll vicariously fly your new RC stuff Bruce. Thanks for the videos.
It's nice to have a steady flow of videos again, Thanks Bruce
Thrilled to have you back.
*"I always believed Santa Claus was into RC'S."* 🎅 🏎️💨
Lol 😂
I would like to see how you bind the Rmilec and how to set up the 2.4g booster, It is great to have you back! thank you for all your videos. I did not know a thing till I found you on youtube.
Thanks Bruce! Interesting going back and re-watching these, information is just as useful. You seem so much more relaxed here :P
Hi Bruce, did you show a usual Wifi booster? Does the frequency band of a 2.4 GHz Wifi booster exactly fits to our 2.4 GHz RC output band with its 80 channels?
Thanks, you always make very knowledgable and informative and very interesting video's. We should call you professor rc.
Its 2021 and nubie here and the video is still very very informative.. thank you sir
Im soo glad you made this video. i started off wondering how to increase the range of my rc link and i got a u.fi to a sma adapter for my futaba 2.4 so i could put what ever antenna i want on it. using a 8db patchi i could fly out to 2miles no problems. to get even more i got a 500mw wifi booster with the 8dbi i got 10km easy. and i thought why doesn't every one do this it's so easy and so cheap but there is not much info on forms or in videos on this topics. so good job and keep it up
World first - biggest sizzers for thinnest plastic bag. But also flying to see FPV footage into a volcano. Well done RC Dante. Rod:-)
Looking forward to seeing what your findings are here Bruce, especially on the cheaper side of things.
Great kick off to 2013 Bruce! Here in the USA, 420-450MHz is the 70cm ham band. I've been hoping to use my license to get a UHF module for my 9X. So the future info you've eluded to in this video is very exciting to me. Thanks!
I'm using an L-Com 2.4GHz 1-watt booster with an antenna on the roof of my SUV. Great solid reliable range!
Now I'm looking for a 2W booster with a user selectable switch for 1W and 2W. Then fly most of the time at 1W. If at the edge of range and getting flaky link, I can temporarily boost to 2W to turn the aircraft around and return to 1W for normal flight. The switch would allow one to "feel" the range of the radio without necessarily RTL. In combination with RTL, it would be even better.
yup me to,, so stoked...you get what you pay for..another good thing with DL, the support is 110% either it be from Mike himself, DL's testers, or the community!
again a great explanation. very comprehensive and approachable. thanks again!!!
concerning the 2.4ghz booster , can I use the same type of booster on my 2.4ghz fpv camera , the camera has a 2.4 ghz transmitter and I use my phone for the fpv video , I get plenty of range out of my RC transmitter but lose video signal . I was planning on using a 2.4Ghz Signal Booster Amplifier For DJI Phantom , it looks small enough to install in the camera housing , but if not I can mount it inside the drone , so would that be a go or no go , and if no , why not ? any thoughts on that one ?
nice scissors
@Maximilian Brandon Is this some sort of meme or something? I've seen this same comment on like 2 other videos lol
Great video. The biggest drawback with UHF, IMO, is that you need a UHF receiver in each of your planes. With boosting all of your planes will work without any upgrades.
You won't regret it. I flew with 72mhz for 8 months, constantly dealing with RTL glitches at random distances (sometimes even 1km or less!).
I have not had a single RTL glitch in about 30 flights or so, out as far as 7km. What is stopping me from going further? Battery capacity, and even moreso, video range! RC range is no longer my concern!
Bruce, So glad your back.
How about using amateur radio bands for control and video links? In the USA we can use 50MHz to control models and with license in theory we can output 1500 watts. We can also use 430Mhz ish for video. I always wondered if it was feasible to use such bands to gather further range.
I am little rusty on my ham rules but i believe the technology is there to do it. Maybe the size is not...
thank you for explain this as simple as possible. very well done
Cool video Bruce. What about FM as another long range option? Bit surprised you didn't mention that.
Interesting question. I bought this system 6 months ago but i was unable to use it seeing I was so busy at work. All the people I see on youtube using it says how good it is but in the forums persons that do not have it or have the more expensive system say that RIMLEC is the worse of the lot. So i look forward to a review from Bruce.
Those scissors looks like they would give off a fair bit if dirty RF if you throw them I'm sure. Great video by the way. Thanks
You sir know your shit!
I think you are single handedly persuading me to spend a lot of money on FPV...Great and technically informative videos.
Legal limit on power probably depends on the country. In the US, there is a 1 watt 'hard' limit that even people with amateur radio licenses can't exceed. The WiFi booster would get you in trouble here if you start crashing wireless routers and the owner notices that "it only happens when that guy shows up and flys his model airplanes."
Hey Bruce! Are you going to try out/review the TBS Crossfire?
Of the 5,8---900 mgh systems ,witch on has the most range out of the box. Thanks steve
you have done reviews on all of the FPV equipment except for long range safety and GPS trackers. I lost my Bix 3 and later purchased a PinPointRC Black box, the next time I crashed my Skywalker I found it within minutes. you should ask them to do a review for them
Hi Bruce Nice to see a new video of you!
RMILEC its not very good, or at least I havent heard very good reviews about it. Here in Argentina we most use dragon link for the rc, and 1.2ghz 800mw video, with 6dbi antenas for close flights(up to 3 or 4 km), and jsut a patch antena to fly far away. I´ve seen they go up to 30km without anyproblem at all. In my city a guy went to 75km away(and back) without anyproblem with a thomas LRS.
Big hug Bruce!!
I watched some videos of the TBS crossfire using their own protocol, CRSF or something. Range is easily up to 40 km, freq is 900mhz and latencies lower than 150ms. But it comes at a price, minimum 99 dollars. You could look into that.
"The old money"...
Love it!
Great vid. Love to see reviews on the range and use of this, and other long range systems.
Might be useful (from Cisco data):
0 dBm = 1mW
1 dBm = 1.25 mW
2 dBm = 1.56 mW
3 dBm = 2 mW
4 dBm = 2.5 mW
5 dBm = 3.12 mW
6 dBm = 4 mW
7 dBm = 5 mW
8 dBm = 6.25 mW
9 dBm = 8 mW
10 dBm = 10 mW
note that it is a log scale, not linear.
... BUT: if your transmitter does not put out the power, the larger antenna does not increase transmitter power as indicated... it will only increase output up to the limit of the power (mW) available. In other words, a system designed around a 3 dBm antenna most likely will not reach 3.12 mW simply by adding a 5 dBm antenna.
+Devin Duncan yes its log, 0 dBm is the base power, now 3 dBm is actually double power gain. a system that outputs 1watt @50ohm with a 0dB gain will create a radiation of 1 watt equivalent, if you increase your antenna gain by a factor of 3dB, your radiated power will be equivalent to twice or 2 watts.
Really enjoy your videos! Makes me want to visit the land down under. Question about the booster...
Would the antenna still provide some gain if the power was not applied to the booster (meaning booster connects to radio and antenna, but power is on a switch and the switch is off). What I have in mind is using the boost as an insurance policy (flip a switch and my range gets extended). Because it could cause problems for other people to have on all of the time, I would rather use high gain antennas and modest power most of the time, and the booster just when I need it. But I want the switch to the booster to be a simple toggle switch with no antennas to change. Do you know if there are any repercussions with this approach - either significant loss or possible damage to the transmitter module when the power to the booster is off?
i like to know too
thanks!!
NO
No. Got it cleared up. No copyright, just an audio glitch.
One day I'll be learning along with one of Your videos and the Volcano down the street will cut it short! I'll be mad.
Always love your videos. They are very informative.
Hey Bruce, ibcrazy makes a brand new notch filter you can put in between the UHF module and antenna. Cheap too. The key to success with lrs is to shield wires, spacing components, as many do not get along well and understand what causes the harmonics so you may put in the proper filters. (high pass, low pass, saw, notch) btw Your going to love the penguin. Good luck trying to get her to land, she floats forever. The larger motor allows a 4s and has more than enough power to push her vertically.
I've had an RMILEC for over a year with no problems , I got rid of that stupid long sectional antenna and bought a RH771 From ........... but the module got quite hot........I ended up buying a RMILEC SRC771 ,now it runs cool and is much better looking ....Good luck over the volcano !
Hey Bruce, I'm glad to see you back and in great form, have you, or do you know anything on the chainlink system thanks mike
Nice presentation
Is it possible to rely on GPS GPS waypoints to travel farther distance than relying on the antenna???
Looking forward to your review on the rmilec unit. I've had pretty good luck with it with 5.8ghz video, but seems less on 1.3ghz video. When I say good luck, I fly an fpv quad, and have been out to just at, or slightly beyond 1 mile. Thanks for your videos!
Considering the Rmilec UHF system for my 9XR. Looking forward to your review!
Would you please consider to set up the Fail Safe for the R-Milec so Other people can learn how to use it? please?
Thanks Bruce very informative and interesting cant wait to see the outcome of the volcanic flight
Do you need to reduce the power output of an EU spec Spektrum DX8 before connecting it to the 2.4ghz booster? hope you can help. keep up the great videos.
Yet another excellent and informative video. Thanks!
pretty good video. I should have seen it 4 days ago before buying the rmilec system.
Hi! What about 72mhz transmitters? Almost nobody uses this frequency, right? There were some futaba 72mhz..
1dB, dBm is a measure of power (0dBm = 1 milliWatt, 30dBm = 1 Watt). Other than that you are correct, 1dB loss for each connector in the system is typical at 5.8GHz. You can get much better connectors down to 0.05dB loss, but they are crazy expensive, and only really used for precision measurement (eg. calibration labs).
What spectrum analyser did you get? Also, just a warning for some, be careful and check your local laws about using RF boosters, some countries there are restrictions on using them.
It's interesting because RMILEC seems to have a bad reputation from people who have never used it. Anyone that's ever told me its no good, the first question I've asked is "Do you have first hand experience" and to this day the answer has been no. I've seen it used a number of time, even out to 25klms and its been rock solid. Would be interested to hear your thoughts on this one Bruce
How come at 10:45 you had to bleep out "Dragonlink" from the audio Bruce?
Glad to see you back Bruce :-) Nice scissors mate.
well done ,very informative ,cheers from the USA .So a 2.4 radio of one brand or more expensive model wont give you any more range ? I guess it would have to conform to regulations,around the world.
viewing this from prince Edward Island Canada. Your smart as hell.. keep me educated. . want more. . btw my name is Peter
Very interested in the RMILEC review :=) Great videos and reviews as always !
Bruce,
Thanks for your videos. Question. You mention by changing the stock antennas only, you can affectivly gain about 40% in range. But what is the approx gain in distance when using the 2 watt wifi booster vs the 60mw transmitter power? Assuming you are using the same gain antenna. Thanks.
I am very interested in the RMILEC test as I have purchased one along with the fibre optic kit for its receiver (while it was available). Very interested in the test and what filtering i made need to do. I bought a Nagoya type whip antenna for it because every review i have read is that the telescopic antenna that comes with it is crap.
Hi Bruce, great video! You mentioned other sources of interferance onboard the aircraft interfering with the radio link, what about problems with servos? Maybe something to look into for us that I'm interested is servo wire length problems with interferance sources. I've had problems with gas engines and long servo wires causing one servo to twitch, and it seems just changing the length of the extension helped. Could you show us some ways of predicting and eliminating that kind of interference?
Hi Bruce,
I found this video very useful! I am looking at extending the range of my FPV setup, and have been considering DragonLink, I will be very interested to see what you think of that vs the RMILEC gear. Also I'd be keen to know what kind of gear you've tested for the video link - tx, rx, antennas etc.
Finally, what is the open source radio gear from hobbyking you mentioned in the video, do you have a link to this?
Thanks again and keep up the good work!
btw are you a Kiwi/Aussie?
Interesting video as usual Bruce but perhaps you might have pointed out that operating RC model control on 2.4gHz in some countries means limited power. I think in the UK it's 100mW (not sure, it may be less) but it's certainly less than 2 watts!
Good video Bruce. Now, as to where you have been recently. You tell us that you have been reworking your workshop then you produce a pair of sheers. Truth be told the festive season has always been a busy one for you ... hasn't it Santa :-)
Hi Bruce (and Barry) :-)
Any chance you could do a short video explaining how plug in modules work. I've heard of free sky but what advantage does that give me over for example the standard turnigy 9x. What other module types are available etc. Thanks in advance. Steve - Jersey
My names Bruce too ! And am into fpv quads and fixed wing as well !
I would love some info on what spectrum analyzers you use.
i forgot to say thank you for yr vids they are proving very helpfull
Hello, i love your videos. Could you update this to speak about the Video emitter long range that exists today ?
I would love to see one day electrically steerable phased array antennas for model aircraft. this is basically a high gain antenna that automatically points at the transmitter/receiver, but instead of mechanically turning, uses electronics in the antenna to change it's beam pattern. This would effectively make the range limited only by line of sight and flight time. Combining a 30dBi ESPA on the aircraft and transmitter would give you a 60dB gain to link budget.
Good day,
Thanks You very much for Your videos!
I'm very new to RC hobby's and it all seems like something extremely complicated to understand for a person who never was involved with RC or radio world. May I ask You to be kind enough to advise me what should I purchase in order to increase my Dji Phantom Vision+'s RC range and FPV range. The RC is 5.4GHz, and the wifi range extender for FPV is 2.4GHz.
Thanks You in advance,
Sincerely
Alex
Bruce you need some heat in there where you can help year round. Thanks and keepem coming man we missed ya...
You Sir are a frequency mad scientist, very informative, thx!
As a rule you lose 1dBm per connector and depending on what cable you use for the tail, there will be a data sheet stating what the losses are per meter of said cable. So on your quad, you will probably have minimal loses. If your really wanting to know that your Ae system is effecient you could try and sweep it for VSWR, but thats specialized kit unless you work in telecoms. In all as long your connectors and cable are good quality and terminated properly I would say don't worry about thelosses
Ahh people just get frustrated with the shipping time of HK (especially in the USA) so dont be to hard on them because it is pretty scary when you spend $500.00 or more and it takes 2 months to get your stuff! I am learning to relax a bit more now that I am more experienced ordering thru HK but man it still scares me too sometimes because you always feel like you have been forgotten or that something has gone wrong w/ your order or something. I can sympathize with their frustrations I guess.
Flying close to a volcano, would it be best to cover the model in a Mylar heat reflective survival blanket?
Hi there love all your vids and they have been very help full but I do have one thing and that is what would the range be for a spectrum DX8 plus how do I get better rang with my for long range FPV
with my thumb thats 600 thumbs up! :D keep doing awesome videos!
great video! i personally want more ads on your channel. i think this because we want you to be able to make more reviews with the money you make off the videos.
Great vid Bruce! I've got the dirt cheap Orange openlrs from HK. Haven't tested it properly yet, just benchtested the basic workings and failsafe. Flashed with latest thUndeadMOD firmware, seems ok thus far. I hear Dragonlink has deliveryproblems and worse at present, if you're considering DL, I would suggest you have a look at (and consider) Rangelink. It's cheaper and I havent heard any negative feedback on that system. Quite a few here in Norway that runs that system and are happy with it
Great vid, Bruce! It's too bad that people can't fly UHF in their country because of fear of getting fined. I have lots of videos on my channel of my dragonlink, which gets the theoretical 30km range you have heard of. I have taken my skywalker out to 10km with not a single failsafe. The words "glitch", "failsafe", and "intereference" do not exist in my dragonlink's vocabulary. It just does not happen. Very reliable systems.
Have you tested the range with the 5dB antenna? My understanding (from my experience in audio) was that every 10 dB is equivalent to doubling the volume level. I'm not sure how that translates to radio so you may want to try and confirm that you can actually get 3-6km range with the bigger antenna
Very difficult to get good coupling. It's possible but you might lose a lot of signal before it gets to the booster, if the booster has enough gain to make up the loss, it might be worth it. Also you want to start with a clean signal, any noise at the transmitter is noise at the receiver and reduces performance, and the cheap transmitter might not have as clean output as a good radio with a removable antenna.
To cut the bag open you got the big tin snips instead of the scissors that was sitting right next to the tin snips which made me laugh.
Very informative Thank You!
Thanks for the video. I would love to see what you think of the Dragonlink.
did you watch the video? bruce said he will review gear as he gets it. im sure (as he's done before) he will let us know his thoughts on each system compared to another he has reviewed, when he gets them
In oz we have 2 major carriers 99% coverage and uptime or close to it.. Yes you would run into problems with the modem being assigned a different IP every instance it logs on or connects. An easy fix if diverted through a proxy VPN.. If connection is lost gps can still auto return to home..
I know nothing about signals and thanks for the education. I was wondering would it work if i connect a huge fish bone tv antenna or maybe a small tv dish satellite? With the amp that. Comes with it? Wanted to test some range limit on a self build quad.
Big boys have big scissors ! ;)
Yet another great video Bruce. I have learned a LOT from you. Thanks mate !
Hi Bruce,
Could you please do an 'airframe efficiency review' as mentioned in your video. I am interested in which plane will achieve the greatest overall distance and how far it will fly on 1 watt of power. Thanks
How can i customize a little Hubsan X4 FPV for a thing so i can plug an antenna into and also what shall i get just to increase the range a little bit looked on ebay but dont really understand this stuff as iam a begginer
thanks Bruce for this video. I look foward to the Rmilec review
I know this video is old, but I've recently got a turbowin RY-2.4 to boost my 2.4g signal not for range but for resistance against interference from wifi and 2.4g towers nearby. Model is going wonky and crashing at certain area in the sky. I wonder if these boosters would help eliminate or reduce risk of crashing?