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 <[email protected]> On Behalf Of David Aslin G3WGN Sent: 05 December 2020 13:37 To: [email protected] 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 _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
