i recently put up 70 feet of Rohn 25 using Phillystran. The first 4-5
feet from the tower are EHS, to minimize the chance of something dropped
from the tower cutting the Phillystran. From the anchor up to about 15
feet (vertically) above the ground is EHS. The rest is Phillystran. I
never tried to figure out whether the lower EHS sections are resonant,
but they're a long way from the antennas. Seems to work fine.
73,
Scott K9MA
On 10/2/2019 14:11, Ron WV4P wrote:
Good afternoon !
Having heard enough negative on the Polygon, we have shifted to
Phillystran..
What I have read says you must run EHS Leaders (I have Plenty in stock) but
not over 50% of the total guy length in EHS.
Doing some modeling (not very good at) and reading, it looks like 41' of
EHS would work well for not being resonate, being plenty high up to not
worry about fire / vandals / beavers.
41' would also save a good bit of $ on the cost of Phillystran for 5
towers.
Any advice ? to long ? Just right ?
Thanks in advance.
Ron, WV4P
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Scott K9MA
k9ma@sdellington.us
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