Date: Mon, 17 Aug 2015 12:41:45 -0800
To: Elecraft Reflector
From: Edward R Cole <kl...@acsalaska.net>
Subject: Re: [Elecraft] Full duplex for Sat work?

Jerry,

Its tempting to think maybe the sub-Rx could be used duplex with main-Tx in the K3, but as you discovered its not possible as DSP is in use for Tx or Rx, but not both simultaneously.

There is a kind of solution, though, if you own both K3 and KX3:

Set K3-2M to listen on 145-MHz and use K3 with 432 transverter to transmit 435 (or vice versa). The "big" issue is linking frequency control of both radios for tracking Doppler changes. This will take sw via ports in each radio. This will be a third-party sw source an not "likely" accomplished thru firmware updates. Amsat has had what they call the "One true way of tracking"; have to research that to find out if it still exists.

I know a ham that might develop such sw but have not contacted him, as yet.

73, Ed - KL7UW
http://www.kl7uw.com
    "Kits made by KL7UW"
Dubus Mag business:
    dubus...@gmail.com

73, Ed - KL7UW
http://www.kl7uw.com
    "Kits made by KL7UW"
Dubus Mag business:
    dubus...@gmail.com

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