I did find this while looking around. I'm trying to get a hold of the
article (I don't have any QST's from that far back).
Jan 1983 QST
Automatic Control For The Alliance HD-73 Heavy-Duty Rotator
Kelley - WØRK
----- Original Message -----
From: "Tom Horton" <email@example.com>
To: < >
Sent: Sunday, January 04, 2004 8:03 PM
Subject: Re: [TowerTalk] Re: HD73 Rotor Control Question
CQ ran an article about an outboard controller that was designed to
control the HD-73. It required a few mods to the controller and also
required another complete circuit to be built.
I built it and it worked quite well. It was a bit touchy to align but
to do quite well! Wish I had one for my Yaesu rotor.
I may dig the old HD-73 back out some day.
I'm not sure when the article came out, but know it was between
Jan 1989 and 1993.
Good luck. If you happen to find it, please let me know. I'd like to
get a copy of it.
73, Tom K5IID
At 01:30 01/05/04, Didier Juges wrote:
>At 03:31 PM 1/4/2004, Kelley wrote:
>>Is there a digital control head available for the HD73 rotor? Something
>>where you can set the direction and it does the work?
>>Kelley - WØRK
>This rotor looks similar to the Hy-Gain T4X, I do not know if they are
>compatible. I mention it because there is a neat addition available for
>the Hy-Gain rotor controller called Rotor-EZ which does exactly what you
>want (in addition to optional computer interface). May be worth
>investigating, as it is not very expensive.
>See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
>Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with
>any questions and ask for Sherman, W2FLA.
>TowerTalk mailing list
"E" Sorter for the ARRL W5 QSL Bureau
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any
questions and ask for Sherman, W2FLA.
TowerTalk mailing list