7 Dec
2008
7 Dec
'08
10:43 a.m.
Curt Nixon wrote:
Do commercial coaxial relays for t/r use short the rx line when in tx? or do they leave it float?
No. I would recommend that you use a second low power relay to put 50R loads across both in and out of your preamp.
Also, should the 2M output on the diplexer for desense be terminated? or left open.
I think most people leave it open but personally, I would terminate it with a 50R resistor.
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Nigel A. Gunn. G8IFF W8IFF (have also held KC8NHF, M0NHF, 9H3GN)
1865 El Camino Drive, Xenia, OH 45385-1115, USA 937 825 5032
e-mail [email protected] www http://www.ngunn.net
Member of ARRL, GQRP #11396, QRPARCI #11644, SOC #548, Flying Pig #385,
Dayton ARA #2128, AMSAT-NA LM-1691, AMSAT-UK, MKARS, ALC
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