I had one of the RS push-up masts to support a V/UHF yagi array. The
connections between sections is done with cotter pins, I substituted double
3/16" bolts and nuts. Neither provides adequate RF continuity, IMHO.
If you do use these masts, you'll have to bridge the sections with,
maybe, copper braid and SS hose clamps a' la Polyphaser. They last a long
time, though. I've had mine for about 20 years, with only about 3 years in
storage (outside the rest of the time.)
Gene Smar AD3F
From: Bill Aycock <baycock@HIWAAY.NET>
To: Gerry Hull <email@example.com>; Tower Talk
Date: Wednesday, November 03, 1999 11:15 AM
Subject: Re: [TowerTalk] EMT Electrical Conduit for 40m verticals...
>A suggestion- look into Rohn telescoping masts (mayybe also what RadioShack
>I priced 30 foot locally at $38- 40 foot at $54. This stuff has the
>fittings already on, and is simple push-up.
>At 09:32 AM 11/03/1999 -0500, you wrote:
>>I have searched the archives and found nothing that really answers my
>>I am building a 4-square for 40 and was looking around for cheap building
>>Home Depot has 2-1/4' 10-foot sections of EMT electrical conduit for only
>>Looks like a bargain, but wondering if anyone has used this stuff to build
>>Since I'm not an electrician, does anyone know what sizes directly fit
>>inside each other?
>>Or is a coupling available to connect diffierent sizes? Should I use the
>>and use non-tapered lengths?
>>I was planning on 33-ft verticals guyed at every 10 feet with rope.
>>Any help/pointers would be greatly appreciated.
>>FAQ on WWW: http://www.contesting.com/towertalkfaq.html
>>Administrative requests: towertalk-REQUEST@contesting.com
>Bill Aycock --- Persimmon Hill
> Woodville, Alabama, US 35776
> (in the N.E. corner of the State)
> W4BSG -- Grid EM64vr
>FAQ on WWW: http://www.contesting.com/towertalkfaq.html
>Administrative requests: towertalk-REQUEST@contesting.com
FAQ on WWW: http://www.contesting.com/towertalkfaq.html
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