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Re: Topband: 1:2 UNUN

To: topband <topband@contesting.com>
Subject: Re: Topband: 1:2 UNUN
From: Frank W3LPL <donovanf@starpower.net>
Date: Mon, 17 Jan 2022 11:29:25 -0500 (EST)
List-post: <mailto:topband@contesting.com>
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.k2kw@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 
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