[TowerTalk] Fwd: My question

[Gene Smar]

Jim:

     I've read on this and Topband reflectors that maybe 5 feet of
separation between tower and vertical wire would be sufficient.  However,
consider shunt feeding your new tower on either or both bands.  I shunt feed
my 64 foot tower on 160M and have a half-sloper wire (1/4WL) off the tower
for 80M.  Both work to my satisfaction.  I have 7  RF radials on top of the
ground for the bands and also about 130 feet of #2 wire buried about 2 feet
and 12 rods for lightning grounds.  

     YMMV.

73 de
Gene Smar  AD3F



-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of Jim
Miller
Sent: Monday, May 16, 2016 3:38 PM
To: TowerTalk at contesting.com
Subject: [TowerTalk] Fwd: My question

One of my friends is thinking about installing a 70 ft. tower with a
2-element shortened 40M yagi. He is thinking about installing the new tower
in a location where he now has a vertical used for 80M and 160M (i.e - the
existing radials will terminate at or close to the base of the new tower).
He is planning to relocate the 80M vertical to another location with other
radials. He would like to support an inverted L for 160M off of the new
tower, using the existing radials. His question is, how far must the
vertical leg of the inverted L be spaced from the new tower, with a view to
keeping it close enough to use the existing radials?


Thanks

jim ab3cv
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