Topband: Post contest season: TX antenna vs RX antenna crosstalk. What do you do?

N5KM - Kris n5kilomike at gmail.com
Sat Mar 26 20:36:01 EDT 2016


JC,

The shielded 50 ohm load is placed at the RX antenna feedpoint or at
the radio's RX input?

Kris N5KM



---- original message -----
Date: Thu, 24 Mar 2016 08:14:35 -0400
From: "JC" <n4is at comcast.net>
To: "'Mark van Wijk, PA5MW'" <pa5mw at home.nl>,   "'william radice'"
        <k4owr at outlook.com>, <topband at contesting.com>
Subject: Re: Topband: Post contest season: TX antenna vs RX     antenna
        cros-stalk. What do you do?

>>I was wondering what people do besides the obvious 'kill the TX antenna
input during RX mode' ?<<

<snip>
The test to know if you have this problem is simple, disconnect the RX
antenna and use a 50ohms, shielded load to terminate the RX input. Tune on
the AM band and if you hear strong BC signals coming from you TX antenna
during RX with the RX port terminated with 50 ohms you have some homework to
do.

<snip>


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