[amsat-bb] Half-duplex on the Kenwood TH-F6A

Robert Kovacs robert.kovacs.g4g4 at statefarm.com
Tue Apr 16 13:20:39 PDT 2013

Someone earlier was asking about the TH-F6A.

As mater of terminology, is it called "half-duplex" or "cross-band split"?

The Kenwood TH-F6A has two receivers but will not work full duplex; you cannot hear your own signal coming back down from the satellite.

What I do is use dual mode, so that both A & B are on, with the uplink on one and the downlink on the other. Set the audio fully on the downlink (because you don't want to listen to the uplink frequency) but leave the active or primary on the uplink side. That way, you can hear the bird, and when you key the PTT hopefully you can hit the bird. With an HT!

My experiences though are with the FM easysats (including AO-51 of happy memory). Has anyone had any luck with this radio's SSB receivers for the linear birds?


Bob Kovacs.
Amsat No. 38304.

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