[Elecraft] K3: Mixer Commands? - A slight return

[Brian Alsop]

I've played with the last command.  It is exactly what I have needed 
since obtaining the K3.  It eliminates a significant drop in main AF 
experienced here when going from main to split with subRX for weak CW 
sigs.  (minus splitter loss of course)

No my drop isn't due to a faulty subin board.  That was replaced and 
helped a couple db.

Note: I'm a mono earphone person and like both RX AF's in both ears.
What I'm after is maintaining the total Main RX AF level to the head 
while adding the subrx AF-- like one would do with two separate rx's and 
a mixer.  Then play with AF levels as needed.

The last command comes quite close to that.

I don't understand the speakers+phone off limitation.  The mixed audio 
is needed on line out as well to run a single AF channel TNC for split 
RTTY operations.

As an interim measure, how about making such commands sticky?

73 de Brian/K3KO

Gary, N7IR wrote:
> Last April there was a thread started by Lyle in reply to a post by Dave,
> AB7E, about programming the audio mixer in the K3 via external commands.
> Based on what Marcus, HB9BRJ, discovered about the command structure I have
> mapped the complete set of mixer commands as follows:
> 
> Main=main receiver audio; Sub=sub-receiver audio; L=left earphone; R=right
> earphone
> 
> !bec3;   Main LR               default main receiver setting
> !bed1;   Main L, Sub R      default sub-receiver setting
> !bed3;   Main LR, Sub R    most useful for split and SO2V operation
> !becb;   Main LR, Sub L    alternate preference of previous command
> !bed8;   Sub LR
> !bed9;   Sub LR, Main L
> !beda;   Sub LR, Main R
> !bedb;   Main LR, Sub LR
> 
> I have programmed eight of the command tester macros in the Elecraft K3
> Utility with these commands so I can control the mixer on the fly.  The
> Main/Sub balance can be controlled with the outer (Sub) volume control once
> the proper CONFIG MENU setting is chosen (SUB AF set to BALANCE).  To quote
> Lyle "Be sure SPKRS+PH is OFF, or SPKRS=2, with these commands."
> 
> This setup is very convenient except that the commands are not sticky.  If
> you turn the sub-receiver off and back on or power down and back up then you
> have to reenter the command.  While most of the commands are not very useful
> to me the one thing I would like to have under control is the default value
> for the audio mixer when the sub-receiver is turned on.  Also if an external
> program (such as N1MM) sends a macro to set the audio mixer then it would be
> preferable to have the setting not change unless another macro was sent to
> cancel the previous choice.  I have heard that this is not the case at the
> present but I haven't tested it myself.
> 
> I know that all of this can be done with an external audio mixing board.  In
> my opinion that solution is a very inefficient use of resources, which are
> already available in the K3.
> 
> Lyle would you please put the default audio mixer configuration choice on
> the DSP firmware development list if it isn't already?
> 
> 73
> Gary, N7IR
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