In a message dated 9/22/2008 11:05:05 A.M. Pacific Daylight Time,
towertalk-request@contesting.com writes:
> W8JI compared the readings with EHS and fiberglass guy material in series
and found a large discrepancy. As far as I know, he didn't compare EHS and
Phillystran. My experiment compared the readings of two gauges on the same
material, 1/4" EHS.
I re-read Tom's emails and he didn't really know what the fiberglass
material was. He surmised it was Phillystran. Phillystran uses an aramid fiber
(ala Kevlar) which I don't know if that's the material he was using.
I don't have any rebuttal for Tom's (and also Dick's) observations but
the one I did had 3/16" EHS, 3/16" 7x19 galvanized steel and HPTG4000 in
series pulled to a recently calibrated Dillon Tensionmeter and they all read
the
same +/- a couple of percent.
Cheers,
Steve K7LXC
TOWER TECH
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