Alt-BEAM Archive
Message #11857
To: beam@corp.sgi.com
From: "Justin" JAF60@student.canterbury.ac.nz
Date: Wed, 15 Mar 2000 16:08:49 +1100
Subject: Miniature video transmitter?
> Given that CCD video cameras are so small, cheap, and power efficient,
> they're just begging for beam application. I know there was a thread a
> while ago about interfacing them to the core, but I was wondering about
> video transmission (I have one that outputs a normal video signal). I
> got some FM transmitter circuits that have quite a range and are very
> power efficient, and was thinking that something similar transmitting
> the signal from the camera could make for a nice Mars Explorer style bot
> that fits in your hand :-)
>
> Unfortunately, of all areas of technology and electronics, radio
> interests me the least, thus I know virtually nothing about it. If
> someone knows and has the time to post (I don't have the time to
> research right now) what kind of frequency is needed for video
> transmission? Could FM transmitters manage it, given that the small CCD
> video signals are a quarter of broadcast resolution. Is the resolution
> relevant to frequency?
> I've had a look for existing circuits, but there don't seem to be many
> beam-friendly ones - either really bulky, or designed to only reach from
> one side of your room to the other to eliminate cords. I found some
> commercial spy-shop ones that were bang on - tiny things, small aerials,
> good range, but they were assembled products you could buy, not the
> circuits...
Home