Use 433MHz transmitter for video rca?

[Tesladude]

Hi I want to transmitt a video rca signal with dome of the 433mhz transmitter and receiver modules you can get on ebay for cheap.

I have used them a lot and have accomplished transmitting data through picaxe microcontrollers successfully.

But could I use it to transmitt a video rca signal so that the output can be connected to a television?

I think I read that rca is at only a few khz and I have been transmitting data at 4mhz so there should be no problem with clarity.
Has anyone done this?
Will it work?

 

[davenn]

the video will most likely still be pretty crappy
a standard video signal is ~ 7MHz bandwidth

Also 433MHz isn't really for that sort of thing ...that ISM band is mainly for narrow bandwidth/low data rate applications at a low power level

cheers
Dave

 

[Tesladude]

do you know any way to accomplish this without buying an expensive rca transmitter?

 

[dlgoff]

What distance?

 

[davenn]

What distance?

yeah that's a good Q

most of those433 MHz modules are only ~ 10 mW
and 10mW spread across 7MHz is not going to go farYou mite want to look at 2.4 GHz modules
There's already a mass of 2.4GHz A/V sender and receiver units on the market
... no point in making it hard for yourself

a lot of electronics retailers sell complete units ready to use

ohhh and by the way, Tesladude, get used to using the correct notations, it saves confusion
MHz NOT mhz Dave

 

[berkeman]

ohhh and by the way, Tesladude, get used to using the correct notations, it saves confusion
MHz NOT mhz

Yeah, a 433 milliHertz channel is going to be mighty slooooooooowwwwww...

(I fixed the thread title to MHz now.)

 

[davenn]

cheers
Mike

D

 

[Tesladude]

Yes!
Mhz, not mhz.
I hate it when others make that mistake so I probably should not be making it!
I use a 433"M"hz transmitter that is 1.5 watts and is supposed to reach about 3Km.
I would like to transmit the video signal as close to 3Km as I can get.

 

[meBigGuy]

"I think I read that rca is at only a few khz"

Not sure where you got that from.

How do you plan to modulate the signal? Wide bandwidth composite video onto the 433MHz carrier? No audio, I assume.

 

[davenn]

Yes!
Mhz, not mhz.
I hate it when others make that mistake so I probably should not be making it!

NO not Mhz

its MHz Hz = Hertz after Mr Hertz

Dave

 

[davenn]

"I think I read that rca is at only a few khz"

Not sure where you got that from.

not sure what you are referring to ?

rca should be RCA as in the plug/socket, not ideal but commonly used for composite video signals

Dave

 

[meBigGuy]

I was refrerring to the OP's statement in post 1 "I think I read that rca is at only a few khz"