Dave that seems expensive and not cost effective. I would use two scaffold
20' poles plus a lighter gauge top section of similar dia.
You can buy aircraft grade DIN tubing 6082 which is slightly better than
6061 T6. Make the height somewhere in the 55ft region and use two top
loading wires of Stainless Steel. Overall cost a fraction of your initial
thought and will work at least as well.
Use it with a hairpin that is what I use here. 73 Clive GM3POI/GM3X
-----Original Message-----
From: Topband <topband-bounces+clive=gm3poi.com@contesting.com> On Behalf Of
David Aslin G3WGN
Sent: 05 December 2020 13:37
To: topband@contesting.com
Subject: Topband: Looking for user experience: DXEngineering Thunderbolt
160m vertical
I'm building a contest station and the time has come to make a choice of
160m TX antenna. Looking at DXE Thunderbolt I note that the capacity hat
extends to a significant distance down the vertical section. It's my
understanding that will shield some of the radiation from the upper part of
the vertical. Alternatives like a vertical tee would not have this issue.
Is my understanding correct?
I'm considering a commercial antenna as high strength telescoping antenna
tubing is unobtanium in UK. My QTH is an exposed windy location so strength
matters!
73, David G3WGN M6O
Sent from my Galaxy
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