At KG4CS in 1970, when phone patches were critical for the
residents, so the base gave great support to hams, as soon
as I was assigned quarters on East Bargo, I was then taken
around the base by the power guy, who pointed out the
dozen or so freestanding unused poles, so I could pick the
one I wanted. They moved it for me and he said that poles
are set with at least 1/7th in the ground, or 14.2%.
Your 11/65 was conservative at 16.9%.
As for mounting, I just put a pulley at the top and
used it to pull up 35 feet of pipe with an inline
rotator (HAM-M?) for my 2-el three-band Joga Quad
(made in Merida, Mexico, ironwood supports, that
sloped out so each band's elements were correctly
spaced). The pole had steps so I climbed and wrapped
"muffler" straps at three places around the pipe and
pole.
Barry, W5GN, EI/W5GN.
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of David Thompson
Sent: Wednesday, July 25, 2012 9:19 PM
To: towertalk@contesting.com
Subject: Re: [TowerTalk] Phone pole antenna support
I used a telephone pole for a support for a Gonset 3 el Tri-bander, then a
big quad, and finally for a TA-36.
I used the support that was in the ARRL Antenna handbook years ago. The
rotor was mounted between two flanges with the top one being a sleve
bearing, I started out with a AR-44 Tv type and moved to a TR-44 ham type.
The pole was used between 1958 and 1969.
Usually you cut off any bad part and then plant the pole so that at least
10% is in the ground. Mine was originally a 75 footer and they (the power
company) cut off about 10 feet and planed 11 feet in the ground.
I put a set of guys about 3/4 of the way up for safety and balast. If you
can get some steps this helps altho I understand they are hard to find now.
73 Dave K4JRB
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|