M69 A Cheap RF Transmitter that Works!
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- Опубликовано: 11 апр 2020
- I do my best to show you an RF Transmitter I bought off Walmart.com without having a good antenna and an old black and white CRT TV.
Here is a link to the product.(I have no affiliation to this company)
www.walmart.com/ip/OTVIAP-Dig...
As well as if I actually post something to Tumblr here
/ spaztastic-tv 
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I just bought one of these modulators. You can broadcast on UHF channels 14 to 83. The trick is setting the modulator on channels 65 to 136. This is because channels 14 to 64 on the modulator are the cable channels. Channels 7 to 13 (VHF high) has the best signal if you don't have an antenna booster. For maximum clarity on just about any channel you'll need an antenna on both the TV and modulator along with a booster. I didn't try it on UHF on all channels, but on VHF high 7 through 13 is almost perfect with just an antenna without a booster on the modulator and had just an antenna splitter on the TV in the next room. Picture and sound was slight grainy but still almost perfect. To know what your UHF channel is, you will need to take your UHF channel and subtract it from the channel number on the modulator. That will tell you how many numbers to add to find your UHF channel. Example: If you're on channel 14 UHF your modulator needs to be on channel 65. The difference is "51". Subtract 65 from 51 and that will be your UHF receiving channel which is 14. Same goes if you want channel 83 or anywhere on the UHF analog spectrum. It is 51 from the number indicated on the modulator from 65 on up. Actually if your television goes slightly past channel 83, you would be receiving on channel 84 or 85 UHF; if they really did exist. Channel 134 is UHF 83. 134-51=83. 136-51=85 and 135-51=84. Remember that channels 14 to 64 on the modulator is the analog cable band.
musicman0150 Works well with Japan TV frequencies. UHF 13 - 62 same as US CATV 14 - 63.
musicman0150 on Japanese VHF TV, channels 1 to 3 same as US CATV 95 - 97, Japanese VHF TV channel 4 same as US cable tv channel 22 but overlaped 2 Mhz, channel 12 from Japan same as cable tv 23 in the US, Japanese VHF channels 5 - 7 (177 - 187 MHz) overlapped 2 Mhz, from US VHF TV channels 7 - 9 (175 - 185 Mhz) Japanese VHF TV channels 8 - 11 same as US VHF TV channels 10 - 13.
musicman0150 US CATV channels 98 - 99 same as Japanese Cable TV channels 13 - 14, Japanese cable TV channels 15 - 22 same as US CATV channels 14 - 21, Japanese Cable TV channels 23 - 62 same as US CATV channels 24 - 63.
So if i connect my cable from upc (analog) to rf in i can send all channels from cable to tv wireless?
Look up Ambery, which sells modulators that actually tune to the correct frequencies for 14-83 (cable frequencies are 2MHz off).
I was able to get my setup to work on VHF Channel 6 because of this video, and now I can watch/listen to anything I want anywhere in my house. Thanks man!
Back before analogue was switched off, the RF in, was for your main antenna, or for the RF output from a VCR to pass-through to your TV.
Most would leave that unused today.
The modulator's RF out, should connect directly to the antenna socket on the back of the TV inself, though nice it has enough RF power output to work with an antenna transmitting the signal.
Now buy 10 of them and make your own cable TV
That's the real purpose of the device. Plug an antenna into the RF in, plug your camera/DVD player into this device like he showed, then the RFout goes into a splitter with coax going throughout your house. Now everyone can watch that camera you hooked to the modulator on channel 12 anywhere in the house.
Daisy chain a few modulators together by running the RF out of one modulator into the RF in of another, and you have a cable system.
The fact that you can put the output into an antenna is a happy accident.
Or just broadcast one OTA channel
What’s the range? I want to make a tv station for my Sony Watchman 😆
I think you need to connect the antenna to the rf in and rf out connects to your coax throughout your house that connects to the rf input to your tv's. That way you have a good strong signal to the tv. Depending on the signal you might need a fixed attenuator.
is there a tutorial for this box anywhere? i got it hooked up, but the closest i can get is taking away the static noise from having no signal😅 if it helps i have it hooked up to a RCA AU-097Y portable TV from 1975 directly with a 75 Ohm to 300 Ohm UHF/VHF/FM Matching Transformer Converter.
I have a TV LINK MODULATOR TM10 I’m not sure if this does the same as your professional modulator.
Does anyone know where I can find the instruction manual for this online?
also try hooking up an fm transmitter to the rf in on the box using a coax cable to connect the fm out and to uhf box in then use that antenna I suggested in the comments below pretty cool lol
Im pretty sure the rabbit ears amplify what they pick up, and put out the coax, not what comes up the coax and out the wires. They usually require power too. I would try a pair of plain rabbit ears instead, also extending the antenna on the TV would increase signal too.
You can use your Japanese imported analog TV set with your US VCR.
Nice. I just picked up a 1978 Panasonic TR-3000p portable tube tv that runs on d cell batteries, going to get this and “stream” video from my tv or video camera. Haha hell yeah
thanks for sharing. I've been considering one of these M69 RF modulators, but there is very limited info that I can find. Nice.
Glad I could help.
Isn't the reason you can't get the RF input to work because there aren't any analog broadcast stations in your area? Near downtown Orlando I can get one on rare occasions.
I was trying with the coax off a vcr and it should have worked because it has a modulator for rf just one no where near powerful enough for over the air signals.
@@SpaztasticTV
Oh I got ya..Brain in overdrive. just saw a vid with a guy putting two antenna amp's in series giving an even better signal while transmitting from a modulator, vcr, etc.
Is it possible to get one of those modulators then connect a coax cable to the antenna out with a 3.5mm jack end into the ext antenna input of the tv?
Yes
How do i find the right channel to broadcast in the module and in the tv if i use a direct rf cable to the tv instead of an antenna?
I was never able to get that to work
@@SpaztasticTV ohhh, and if i use an antenna, which kind should i be looking for? UHF?
@@razakta2066 not sure to be honest
@@SpaztasticTV haha alright thank you for the video tho it really helped me understand some stuff i didnt know before
Love your energy man! Looks good for one of my projects over a small space. Did you have to use powered antennas?
No I just used some cheap rabbit ears
@@SpaztasticTV nice! Thank you so much for your reply and showing me how to do this. I really appreciate it
@@SpaztasticTV hello, i habe the same question, what for a Antenn do you use? It gives So Many
@@mr.gtafunglitchlp4697 I just used a set of rabbit ear antennas that I had laying around. if you are thinking about picking some up I would avoid the ones they sell at walmart
@@SpaztasticTV thanks for the answer, i come from germany i cant buy on Walmart :/ my Problem is, can i use a antenna with Power Kabel? Because you have a Regulator on your antenna, and in germany i find just antenna with Power Kabel they have a Regulator on it :)
can you give me a link to buy the rabbit ear transmitter?
The rabbit ears were just some random ones I had laying around and I bought the RF transmitter on Wal-Marts website
do you know if i could use hdmi to rca with this device? sorry if it's a silly question, i was gifted an analog tv recently and im trying to make use of it somehow
Yeah it works. I did this for a video I did on the Namco hdmi game consol thing and it worked fine.
@@SpaztasticTV awesome, thanks :)
the same company actually make a straight hdmi modulator as well. sadly you cant have both
@@ketznov4072 I think the HDMI to HDMI wireless extenders are supposed to transmit 200 or 300 ft, That might be an option for some folks. I don't have cable tv and live in an apt. I can't get one major channel because I'm on the opposite side from the broadcast antenna about 20 miles away. So in a couple of weeks I will be experimenting with a wi-fi - ranch and farm router - to send from my car to my apt several floors up. The tuner in the car is a classic HD Homerun and it gets the broadcast perfectly. Another issue is interference from all over the place. From cell phones to wi-fi. But the 2 units I bought are for very long distance.
@@SpaztasticTV I am using and HDMI to RCA device for video capture to other devices or a PC and have to lower the resolution of the output device to 720p. Higher res would not display.
I forgot to mention that with the VHF low band 2 through 6, channel 6 is also 87.7 on FM radio so if you are broadcasting on VHF channel 6; you will also hear the audio on 87.7MHz. Even if you want to use 87.7MHz for FM; from my understanding you will need to have some kind of video signal being that is also on channel 6 VHF low. This modulator will work for both FM and low power TV transmitting in your home if you use channel 6 and 87.7MHz. Just remember that your sending antenna will need to be within the FCC Part 15 limits being it is an unlicensed broadcast. NOTE: If your area uses channel 6 and 87.7MHz by another low power station. DO NOT USE this frequency, even if the signal is weak. It MUST be pure static and snow to ensure no signal conflicts. Some states are using analog channel 6 for FM broadcasting. Not sure how long this will continue.
musicman0150 In the Philippines, we have 87.5 FM as DWFO 87.5 FM1. Hit music station in Manila, Philippines.
Your transmitting on a receive only aerial, the built in amplifier is not meant for transmitting, put a bypass switch so you can use it for transmitting or use a coat hanger
Good video! Imma try hook up one of these to a 500MHz antenna at channel 19 to broadcast some TV.
That’s CATV 70 on M69 modulator.
Channel 19 uses 149 MHz, same as Japan cable TV channel 20.
@@FrancisLitanofficialJAPINOY No, NTSC channel 19 is 500MHz. Yes it is ch 70 on the modulator, and CATV channel 70 is 2MHz shifted below channel 19 air, so it is 498MHz.
@@binarix128 Japan CATV 20 same as US CATV 19.
@@binarix128 I’m taking about Cable TV frequencies.
Sus?
I'm confused. I just bought one from ebay and it's sold as digital. I want to send the rf to a classic 2 tuner HD HomeRun. It appears to be analog. That tv is certainly analog. On my smart tv it shows up as Air, not digital air. Can anyone tell me for sure is it analog only? Also, to change to PAL press the - and + at the same time, let off, then press + to go to 1, 2 or 3 for diff PAL modes. But coming here and seeing you guys use it for broadcast is really, really kool!
It is an analog only device.
@@SpaztasticTV Well that confirms a few hours work. It says "digital" right on it. Geez
@@offgrid2010 It uses a digital method to modulate the signal, that's why it can support both PAL and NTSC, and the channels can be changed by buttons instead of tweaking tuning capacitors or trimmers.
@@binarix128 Thank you very much for your input. Could you also offer any feedback as to how I could get my analog feeds such as a composite camera onto a digital tv channel? Are we talking $300-500.00 or more for a high end device?
@@offgrid2010 An analog tv modulator like that one in the video and the hundreds out there are pretty cheap, but hd digital TV modulators are quite expensive, from $150 and up. There are some that supoort HDMI input and will output your HD digital channel over coax. As far as I know hotels often use these to broadcast movies in HD to the TVs, thus it's simplicity. After you get one of these you will need an AV to HDMI converter, because these HD modulators only support HDMI, so you have to convert the composite video. These converters are extremely cheap so you don't have to worry about that, the thing is to get the modulator.
230V or 120V?? I prefer 230V. Unless you bought 110V to 220V 50W step up transformer for Japan, Taiwan and North America.
This is great 👍 haha 😂
Is the one with hdmi input able to broadcast too?
They make one with an HDMI input?
@@SpaztasticTV Yes, it’s available on amazon
@@SpaztasticTV yeah on Amazon the composite go for 40€ and the hdmi goes for 60€
Couldn’t you just bought a Modulator that can be connected with a cable with the tv?
For like $100
@@SpaztasticTV oh really 😳. I’m trying to connect my 1978 Eastgerman Luxotron at the Moment. But with a Videorecorder as a modulator. It does not work 😔 So I’m thinking of buying a modulator.
@@SpaztasticTV You can connect the modulator you already have. all you need is coax to 3.5mm adapter. As for making better antenna, look at dual biquads, there are dimension calculators online.
Perfect for Amateur Radio Television.
more convenient than a vcr and you can change the frequency
I think with a good antenna you could broadcast to your neighbor's
Name Surname Great for Japanese frequency tuned CRT TVs using US VCR.
@@SpaztasticTV Really? I didn't read that before. Gee. I could have some fun in my apartment bldg!
Can I use any type of antenna in RF OUT(or even a wire will do)?
I tried a wire and it didn't work very well. I used a set of rabbit ears and it worked fine. I assume as long as you have both connections attatched in the right way it would work fine though.
@@SpaztasticTV Thank you. I have one more question, how do we switch its mode from NTSC to PAL?
@@nirmalyadav1395 I cannot for the life of me remember how to do it. It's a combination of button presses. I know another video exists that shows how to do it
Thank you. One last question, can I connect a DVD player to it and broadcast pre-recorded video?
@@nirmalyadav1395 if you do it via component and not colaxial.
Remember me from a year ago?
Nope
RF is coax
Cool
Does this support PAL or NTSC?
It supports both
@@SpaztasticTV Thank you buddy :) One last question, does it support both UHF and VHF? If yes, do we have to set the bands manually?
@@yourbestworstassistant4644 I have no idea itshould just do it on its own I think.
@SpaztasticTV Alright thank you :)
Your best worst assistant I have LCD TV in the Philippines but Devant brand, Philippine version of Hisense, it uses PAN AMERICAN cable/air analog TV frequencies, supports NTSC, PAL-M, PAL-N/Nc and Auto, NTSC 3.58 / PAL-M (NTSC 3.57) / PAL 4.43 / PAL-N (PAL 3.58), SECAM 4.40 and 4.42 only for Video inputs
I'm not sure why you complain about your audio. It's the least offensive thing about your videos. :D
My face was right next to the Mic is why I said that. I did reduce the volume for the last part of the video because it was pretty loud
@@SpaztasticTV No, seriously...there are WAY bigger youtubers that have absolute SHIT sound. At least on your videos I don't need to man the friggin volume button...
I do find that really irritating myself. Other when I throw in the occasional ear rape for humor.
@@SpaztasticTV I was considering asking permission to do a parody voice-over of one of your videos. I'm new at it, but I have decent sound and I'm bored.
👍👍👍..📺..MODULATOR UHF..SIGNAL.ANTENNE OK
Сам читал что перевел?😵👎💩
Good for you
Spam bot
@@Nathan_7318 Это ты так прпдставился?
Videos with profanity.
And?
F off this dude rocks
Boo Hoo
This is illegal. Don't do it.
Its not illegal
its analog? analog tv was dead in many countries
@@grlr882 not where i live atleast
@@grlr882 Both are illegal.
(Digital and analog)
@@koppo5657 in russia it dead
so i will do this )