[amsat-bb] Looking for some guidance on controlling cheap Radio Shack rotator

Mark Lunday, WD4ELG mlunday at nc.rr.com
Thu Nov 13 11:52:19 PST 2008

Bought a $55 special TV rotator from my local Radio Shack, and I would like
to use something to control Azimuth (Elevation is obviously fixed, I have it
at 30 degrees which seems OK for my use).  It has three screw posts
(probably +/- DC voltage and ground for motor control?)

I have an older PC with a parallel port (serial port is used to control the
rig).  What pre-existing interfaces between parallel port and the screw
posts of the rotator are available?  I don't have the time to build my own
kit,  and would rather buy off-the-shelf solution.


Mark Lunday
wd4elg at arrl.net

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