[ADXA] Get 160m inv L to 80m?

[Pat Patterson]

I use a coaxial trap...RG214 on a piece of 4" thin wall PVC. Trap resonates at 3.45 MHz.

Looked at using a vacuum relay...lower losses but more complexity.

Pat, W5VY


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From: adxa-bounces at mailman.qth.net <adxa-bounces at mailman.qth.net> on behalf of Jussi Eloranta <eloranta at aa6kj.hopto.org>
Sent: Thursday, February 20, 2025 10:36:38 AM
To: 'ADXA' <adxa at mailman.qth.net>
Subject: [ADXA] Get 160m inv L to 80m?

Hi,

I have inv L (with about 80 radials) for 160m (quarter wave length). I am wondering if there would be some good way to get it to resonate also on 80m? Of course one solution would be to install a relay that would make the radiator longer/shorter but a bit tricky to do in practice. Any thoughts?

Jussi (aa6kj)
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