If you have time, you can make the turntable (assuming light load) from a
drain pipe pvc (large diameter) which is attached to an antenna rotor
(those used in people's homes who live in fringe area).
The thing was all strapped and glued which had to be inexpensive.
Although uncalibrated position, just *look* at the table! <g>
For the mast, I think it was a reel of push pull nylon rope onto a sail
mast (the type that automatically dispenses a sail) and the antenna just
went up and down.
For rotation, just a "cantilevered weight" that gets moved back and forth
and makes the antenna "flop"
- Robert -
On Fri, 18 Dec 1998, Rob Stirling wrote:
> Greetings everyone!!
>
> I'm looking for a low cost antenna mast and turntable solution for my
> new Open Field Test Site.
>
> I'd be interested in a 4 m Mast, polarity control and take-up reel are
> optional, c/w a controller w/ GPIB, also, a light to medium duty 4'
> turntable, for at least 400 lb. c/w a controller w/ GPIB.
>
> Ideally the system would need to be used or a demo, or even a
> junker, since my budget is all but spent already. If you can put me on
> to a used system, or any of the components, I'll offer nice a finder's
> fee for any leads that result in a sale -- just in time for XMAS!! I
> hate sounding desperate -- but I am: I just didn't plan on, or budget
> for, paying more for the T/T and Mast than what I spent on my Logic
> Analyzer. :o(
>
> The cost of new T/Ts, Masts and controllers is nothing less than
> criminal, and from what I've seen available for the money, well, it's
> cruelty!! Please help me round up these fugitives from justice, call for
> your reward. <No offense intended to T/T and Mast equipment mfgs, I
> know you've got to cover your, um, assets.> ;o)
>
> Best regards and Happy Holidays!
>
> Rob Stirling
> Protocol
>
> ph 604 218 1762
> fx 604 572 9408
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