[Elecraft] Ab-Ba audio - was Second Antenna Port -

Arie Kleingeld PA3A pa3a at xs4all.nl
Wed Feb 8 10:10:32 EST 2012


Igor,

Antenna switching is also very easy to implement outside the K3 or any 
other trx. Still transceivers and also the KAT3 tuner are delivered with 
2 antenna ports.

Just let me explain and share with everybody how I switch the K3 audio 
and why I donot want to do this 'outboard'.
During the last CQ 160 CW at PI4D I had the main transmitting antenna 
connected to the K3 Ant1 and a receive antenna to the RX ant connector.
I linked A and B VFO together with same mode, freq and fixed BW (400Hz) 
and listened A-B, like diversity.
With the F-keys of N1MM you can send CAT commands to the K3 to change 
A-B to A-A or B-B or any other implemented combo and back with a single 
keystroke. Thank you Elecraft and N1MM programmers for making this possible.
When working in split I sure would like my Ab-Ba setup, also with a 
single keystroke and not by a external switch. For this is has to be 
implemented in the Config.

By the way: The Ab-Ba setup is implemented in a FT1000MP as a standard 
listening method when you listen to main and sub RXs.  I often wonder 
why my repeated request for the Ab-Ba was ignored. Maybe because I am 
just some PA3A. Oh yes, I got one answer once about 2 years ago: It did 
not fit the display: the B could be read as a 8. Oh boy......  But times 
are new. It might happen.

Coming back on the F-key trick from N1MM to switch audio, if anybody is 
interested, just let me know. I'll be happy to share this.

73 to all
Arie PA3A


Op 8-2-2012 14:43, Igor Sokolov schreef:
> Arie,
> What you are requesting is easier to implement externally. I for one 
> think there are too many options. I need to cut internal AF switching 
> to A-b, A-A, b-b.  It takes too long to cycle through all the switchig 
> AF options when in the contest. So I will implement what I need 
> externally myself.
>
> 73, Igor UA9CDC
>


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