[TowerTalk] Remote Antenna Switch

Kenneth D. Grimm, K4XL grimm at sbc.edu
Sun Jun 15 23:43:39 EDT 2008


AD5VJ Bob wrote:
> Does anyone have anything on this Remote Switch?
>   
Your Model SW9 is probably very similar to my Model 50.  Dick, W0MLY, 
followed a fairly predictable wiring system.  About the only differences 
were in the number of contacts on the switch.  You are welcome to 
download a copy of the Model 50 manual from the BAMA server.  
http://bama.sbc.edu  Just look for Antenna Mart.  On the mirror site at 
http://bama.edebris.com look under antmart.
The Antenna mart switches were very high quality and not inexpensive.  
If you have the control box and the switch box and the wafers are in 
good shape, you've got a good piece of equipment.
73,
Ken - K4XL
BAMA


> For my new tower a guy gave me a control box for and old remote controlled antenna relay that he once used, but was in his junk box
> and so he asked me if I wanted it.
>
> On the back it has a paper stick on tag that says:
>
> Antenna Mart
> Box 7 Rippey IA  50235
> Model SW9   SERIAL = _________
>
> I searched Antenna Mart using Google and came to a website named 
> MAX-GAIN SYSTEMS, INC
> http://www.mgs4u.com/index.html
>
> So I sent them an email asking them about this remote switch box
> They sent me an email back telling me:
>
>   
> That one is very old, and was made by W0MLY in Iowa, before the company was sold in about 1990 to Bill Wall, KC4UZ, near Atlanta.
>
> The old switch used a Lucas Ledex stepper motor, and sent pulses to index it.  Position indication was sent back to the control box
> by a "coding wafer" which was indexed by the stepper.
>
> Bill Wall completely redesigned it all, and used a totally different system, with gear-reduction motor drive, no steppers.
>
> We have no data at all on the older W0MLY switch.
>   
>
>
>    73 fer nw es gud DX,
> QSL VIA: LotW, BUR, e-QSL
> Bob AD5VJ
> http://www.ad5vj.com/
> Old Calls WB5ZQU, WY5L/KH3, KE5CTY, N5IET
>
>
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>
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-- 

Ken K4XL
k4xl at arrl.net

*** BoatAnchor Manual Archive ***
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