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Re: Topband: Wire size at base of 160M inverted L

To: topband@contesting.com
Subject: Re: Topband: Wire size at base of 160M inverted L
From: donroden@hiwaay.net
Date: Wed, 25 Dec 2019 14:52:38 -0600
List-post: <mailto:topband@contesting.com>
Biggest size that easily fits.

W4DNR



Quoting N4ZR <n4zr@comcast.net>:

I'm wiring up a relay to be used to open the feedpoint of my 160M inverted L. My intention is to have it connect the feedpoint to the transmitter when the relay is activated by PTT and open the circuit on receive.  I will be running 1500 watts.

My question is this how heavy does the wire need to be between the antenna side of my common mode choke and the relay, or between the relay and the feedpoint? The relay is rated at 16 amperes continuous, 30 amps switching.  I've been told that current rather than voltage is the issue at the base of a quarter-wave.  My normal instinct would be to use something like No.12 or 14 wire, but the terminals on the relay are roughly the diameter of #18 wire, and the center conductor of the common mode choke (wound with RG-400) is similarly small, so would the heavy wire be overkill?


--

73, Pete N4ZR
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