>At 10:59 PM 11/3/98 +0000, you wrote:
>On Tue, 3 Nov 1998 19:23:13 -0500, Sean Breheny wrote:
>
>>An aside question, here:
>>
>>If I wanted to make a low power TV transmitter to go with one of these
>>standard 1v p-p video out CCDs, could I just amplitude modulate a video
>>carrier freq. with the output of the camera and then send that? I assume
>>that all of the sync signals, etc, are provided by the camera.
>
>No...
>
>TV carriers use a vestigial side band.  Only the center + the uppper side
band
>are transmitted.  There is a small lower side band where the FM audio
hangs out.

Dan, are you sure?

I thought I had seen Amateur TV transmitters which use full double side
band video. In fact, I believe that the reason why vestigial side band is
used instead of SSB is that some vestige of the other sideband(and the full
carrier) is required for downward compatibility with DSB receivers (not
sure of this last assertion).

In my case, I don't care about the audio, I only need video. Will it make a
difference in this case?

Thanks again,

Sean



+-------------------------------+
| Sean Breheny                  |
| Amateur Radio Callsign: KA3YXM|
| Electrical Engineering Student|
+-------------------------------+
Save lives, please look at http://www.all.org
Personal page: http://www.people.cornell.edu/pages/shb7
mailto:shb7@cornell.edu  Phone(USA): (607) 253-0315 ICQ #: 3329174