Re: Mark IV is Moving: monitoring the mount

[hjohnson@pluto.njcc.com (Herbert R Johnson)]

On Wed, 03 Mar 1999 13:01:37 -0800, Chris Albertson <chris@topdog.pas1.logicon.com> wrote:
*>Tom Droege wrote:
*>> 
*>> I have tested everything that I can think of.  For sure as soon as I try to
*>> make it work I will get tired of running up and down that spiral staircase
*>> and want to get a camera to watch it.  Anyone know how long a cable you can
*>> put on the $100 cameras they sell to sit on top you computer to transmit
*>> your picture?

Simple video cameras with NTSC video output are under $100 through the
mail order catalogs. You can run a long video cable of course. Or, you
might try one of those UHF remote video units. You put in video and audio,
it has an RF output or an antenna. Channels in the low UHF band. Again,
check the popular new/surplus catalogs, price about $50 or so. VHF
RF modulators are available for a few dollars, but I think the UHF band
will have less competation and you may get more distance. Some of
the old computers designed for TV's (Commodore 64, Color Computer, Atari)
may have an old RF modulator in them, they are typically self-contained units.

If anyone needs a catalog reference, ask me.

Herb Johnson
 


Herbert R. Johnson              http://pluto.njcc.com/~hjohnson
hjohnson@pluto.njcc.com         voice 609-771-1503, New Jersey USA
             amateur astronomer and astro-tour guide
     S-100 computer restoration, parts, manuals as "Dr. S-100"
   rebuilder/reseller of compact Macs for your computing pleasure