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Topband: RX / TX antenna switching

To: "'Topband'" <topband@contesting.com>
Subject: Topband: RX / TX antenna switching
From: "Gabriel - EA6VQ" <ea6vq_ml@dxmaps.com>
Date: Thu, 22 Sep 2016 19:27:40 +0200
List-post: <topband@contesting.com">mailto:topband@contesting.com>
I will appreciate your advice in the best (but simple) way to switch between RX 
and TX antennas for a transceiver that does not have a separate RX antenna 
input.

The system should be able to switch from RX antenna to TX antenna when PTT is 
applied (and vice versa) but also allow to switch between the two antennas 
during reception in order to compare.

I have thought about using a coax relay as I do switch the VHF preamps, but I 
think it's switching will possibly too slow and some RF could flow to the RX 
antenna, causing damage. 

Any ideas will be welcome!

73. Gabriel – EA6VQ



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