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[TowerTalk] VP5 ANT. PROJ.

To: <towertalk@contesting.com>
Subject: [TowerTalk] VP5 ANT. PROJ.
From: n4kg@juno.com (T A RUSSELL)
Date: Sun, 24 Jan 1999 12:36:45 -0600
Hi  Bud,

The Cushcraft D3W aluminum dipole with traps is a GREAT
way to provide the WARC bands.   It can be stacked above 
your tribander or mounted on a tower leg.

BTW, the Cushcraft 2L40 works well on 17M as a rotary dipole
with <2:1 SWR.  It can be used on 12M with a tuner.

An 80M dipole, tuned for 3.6 MHz provides a GOOD match
on ALL of the WARC bands (<3:1 on 30M, <2:1 on 17 and 12M)
with 4 main lobes, approximately 30 degrees from the wire,
assuming the wire is straight (not inverted vee).   Lower SWR
can be attained when fed with 75 Ohm cable.

A 20M dipole, fed with ladderline, provides a Figure 8 pattern
on 10 through 30 Meters, with approximately 50 degrees 
pattern width on 10M to 90 degrees pattern width on 30M.
GREAT   ANTENNA !    Use a MOSLEY driven element support
with insulators and you can side mount it or rotate on a mast.

Did you read the posts on painting your antennas for protection
against salt spray when near the ocean?

73 / GL,   Tom  N4KG


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