[TowerTalk] Boom to Mast Fixture

[Pete Smith]

At 01:57 PM 10/7/00 EDT, W3GCG@aol.com wrote:
>
>At W3GRF's, we used 70' of Rohn 25 for the boom of a 40 meter, 4 element
yagi 
>on a 100' windmill tower.  We had a steel plate, 1/4" thick, welded to the 
>center of the tower and U-bolted it to a horizontal pipe which was U-bolted 
>to a vertical plate on the mast.  It is called the PVRC mount so that you
can 
>tilt the boom over to attach the elements. 

See pp 22-14 ff of the 18th edition of the ARRL Antenna Book for close-up
pix and a full description of how it's used.

73, Pete Smith N4ZR

Contesting is ... Extreme Radio

The World Contest Station Database 
is back up and running at
http://www.qsl.net/n4zr 



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