[TowerTalk] EHS vs Phillystran
K7LXC at aol.com
K7LXC at aol.com
Mon Aug 31 09:52:05 PDT 2009
In a message dated 8/31/2009 9:29:23 A.M. Pacific Daylight Time,
towertalk-request at contesting.com writes:
> I'm re-working my tower, and was wondering if there is any RF benefit to
replacing the top guys with Phillystran. The current guys are 1/4" EHS.
The antennas are a 4el SteppIR mounted at the tower top, and a 6M7JVV 8'
over that.
> The tower top is a Rohn flat top with guy 'ears' right at the top. It's
replacing a tapered top section.
There may be some benefit with just antennas at the top of the
tower but where the Phillystran really becomes valuable is when the tower
is populated with antennas below the top; e.g. lower yagi stacks or wire
antennas attached to the tower. Then the antennas don't see the guys and you
don't have destructive interaction.
Cheers,
Steve K7LXC
TOWER TECH
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