Hi Kenny, A very workable alternative is to use two lengths of 75 ohm coax in parallel. RG-11 is the best choice, but two lengths of RG-6 will also work. No need to coil it up, simply use it as part of your transmission line from your antenna base to your station.
73 Frank W3LPL ----- Original Message ----- From: "Kenneth Silverman" <kenny.k...@gmail.com> To: "topband" <topband@contesting.com> Sent: Monday, January 17, 2022 2:18:30 PM Subject: Topband: 1:2 UNUN Does anyone have a drawing on how to wind a 1500w 1:2 UNUN? And what type of core is needed? This is for my 160m vertical which is about 28 ohms. Regards , Kenny K2KW _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
