I am trying to pass RCA signals via a transmitter and receiver, one direction only. Here are my questions:

1. If I pass over one signal, I take it the receiving end will separate the same signal out among each wire (yellow, red, and white), will the TV recognize each signal and process it correctly?

2. Is it better to go analog or digital?

 

How are you generating the video?
Is it standard def or high def?
The TV must have an input for whatever form the video is in be it composite, component, or HDMI digital.
Analog is easier to generate than digital but is only used for standard def (NTSC) signals.

 

How are you generating the video?
Is it standard def or high def?
The TV must have an input for whatever form the video is in be it composite, component, or HDMI digital.
Analog is easier to generate than digital but is only used for standard def (NTSC) signals.

Really I was trying to keep it as simple as possible. Place a transmitter after an DVD player RCA output, and a receiver right before a TV RCA input.

 

Back when, you could buy a TV transmitter kit from Ramsey, but that was for NTSC (non-Hi Def) video and mono audio. Today there might be similar devices on ebay. Building one from scratch is not easy and the receiver is much more difficult.

Sony used to make a TV extender that worked over WiFi, but again that was for NTSC.

Assuming that "RCA" means video and audio signals using phono connectors, please be more clear about what the signals are. You don't say how many signals you have, and there are more than one "standard" signal configuration.

ak

 

Back when, you could buy a TV transmitter kit from Ramsey, but that was for NTSC (non-Hi Def) video and mono audio. Today there might be similar devices on ebay. Building one from scratch is not easy and the receiver is much more difficult.

Sony used to make a TV extender that worked over WiFi, but again that was for NTSC.

Assuming that "RCA" means video and audio signals using phono connectors, please be more clear about what the signals are. You don't say how many signals you have, and there are more than one "standard" signal configuration.

ak

I have always heard the Yellow/Red/White input referred to as RCA. If this is incorrect please let me know.

And correct me if I am wrong as far as I am aware I can replace the red or white wire with a FM transmitter/receiver and the signal will not be hindered. I am not aware though if this will work for the yellow (video).

I guess the best way figure this out is to try. Any suggestions?

 

The Yellow, Red, White phono inputs are for Video and L+R audio.
The video (yellow) is in composite mode either PAL or NTSC.

 

The "RCA" is simply the name of the physical plug style that is commonly used. Similar to talking about a banana jack or a other style connector.

The three signals are baseband signals and in order to transmit them as you describe they need to be modulated onto an RF signal in some way -- and the receiver has to demodulate it based on knowledge of how it was modulated. Provided you have the bandwidth, the transmitter and receiver don't really care what the data is. But with three baseband signals, they are going to have to be modulated in such a way that they can be stripped back apart at the other end. There are a number of ways of doing that.

 

I have always heard the Yellow/Red/White input referred to as RCA. If this is incorrect please let me know.

And correct me if I am wrong as far as I am aware I can replace the red or white wire with a FM transmitter/receiver and the signal will not be hindered. I am not aware though if this will work for the yellow (video).

I guess the best way figure this out is to try. Any suggestions?

You didn't pick an easy project at all, you cannot do what you are proposing without a bunch of circuitry.
Check this unit out; https://www.amazon.com/SainSonic-SS-630-Wireless-Transmitter-Receiver/dp/B00D775SJQ
It actually gets good reviews, I've used other brands in the distant past but they really sucked.

 

The "RCA" is simply the name of the physical plug style that is commonly used. Similar to talking about a banana jack or a other style connector.

The three signals are baseband signals and in order to transmit them as you describe they need to be modulated onto an RF signal in some way -- and the receiver has to demodulate it based on knowledge of how it was modulated. Provided you have the bandwidth, the transmitter and receiver don't really care what the data is. But with three baseband signals, they are going to have to be modulated in such a way that they can be stripped back apart at the other end. There are a number of ways of doing that.

Thank you for setting me correct on that. I have found several FM transmitter schematics online, and many with the inputs desired.

I will plan on three different signals for each unit. Is there any easy way to modulate the frequency for each output/input to change as needed?

Also thanks for the additional information.

 

Audio may be feasible with homebrew circuits and so is Video if you are very advanced and have the proper tools and knowledge.
Trying to modulate video over FM requires RF strips and all sorts of other voodoo that you cant simply achieve without a scope and other equipment. I'd just purchase a ready made unit and be done with it, you can also get IR transmitted between the units as well.

 

why not just use something like this?
Along with something like this..
I have that exact one and it works great. Or depending if you already have a monitor or not, or what your wanting to use as a monitor, if you get something like this, you can use any android device or laptop or pc as the monitor Thats about $20 for any of those solutions though, if you need more range step it up to 2.4 ghz or even 1.2.

 

He wants composite video and stereo audio.