May 7th 04, 03:29 AM
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(David Harper) wrote in message . com...
I am interested in getting involved with ATV, and have been having
some trouble finding good info on the equipment needed.
from what I can understand, there needs to be 4 (or 5?) things between
the video signal source (i.e. camera) and the receiving TV: the
downconverter, (the pre-amp?), the transmitter, the receiver, and
another downconverter... correct?
Depends how complex a system you want, the bands used, etc. ATV on 420
mhz can be quite simple. I have a small homebrew transmitter and
receiver a friend of mine built, that can work 420. Do you have a
cable ready TV? You already have a 420 ATV receiver, IF you use a good
gain type antenna. Many ATV repeaters are on cable ch: 57, 58,
etc...You use a regular TV antenna, but set the TV itself to "cable".
I have a 25 element rat shack corner reflector yagi I use for that.
"standard UHF TV antenna". 1.2 ghz and up starts getting to be a
little more involved, but usually better picture quality in general.
Also, from what I can tell, you're only supposed to transmit on
specific bands. Is it possible to select a band where there might be
less ATV traffic?
Sure. http://search.yahoo.com/search?p=Ama...=20&fl=0&x=wrt
Try that link for ATV info...MK
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