Newsgroups: comp.robotics
Path: brunix!news.Brown.EDU!noc.near.net!gateway!miki!wpns
From: wpns@miki.pictel.com (Willie Smith)
Subject: Re: Wireless Video Systems
Message-ID: <1993Feb5.144908.4310@miki.pictel.com>
Organization: PictureTel Corporation
References: <93Feb2.104915est.122@orasis.vis.toronto.edu> <1993Feb4.235132.21524@ohsu.edu>
Date: Fri, 5 Feb 1993 14:49:08 GMT
Lines: 27

bellutta@ohsu.EDU (Paolo Bellutta) writes:
>nbains@vis.toronto.edu (Narinder Bains) writes:
>> We are trying to send colour video signals from a colour camera onboard
>> our mobile robot (Cybermotion k2a) to the remote control station via
>> wireless means. We work in a large production facility (400ft by 200ft)
>> which contains numerous pipes metal pillars and heavy duty motors.

>I was using the same robot, and had some experience with video links.
>The best solution is to use the lowest possible frequency.  The best
>results have been obtained with a 300 MHz link used for camera to truck
>link in mobile video producion systems.  Unless you want to use the 
>7GHz digital link....

I'm having good luck with an FMTV link at 915 MHz at about 5 watts and
very little deviation (~8 MHz bandwidth), though the multipath causes
lots of picket-fencing, which trashes the color at times.  I'm
contemplating diversity reception, has anyone done this with video?
Doesn't sound too difficult, all I need is money and time...  :+)

Willie Smith
wpns@pictel.com
n1jbj@amsat.org
-- 
Willie Smith    wpns@pictel.com    N1JBJ@amsat.org     "I'll make
Beelyuns and Beelyuns from the book contract and the TV show with
government funding for looking for the nothing in the void where The
Bang caused the hole in the middle of it all" Frank Hayes - Cosmos.
