Ed,

I don't know what audio card you are using, but if it has a stereo plug on the KX3 end of the cable, it should not turn on PTT. If it does, I suggest you make up a special cable with stereo plugs at both ends, and connect only the tip and shell of the plugs.
That should eliminate your problems with PTT being activated in DATA A mode.

73,
Don W3FPR

On 2/19/2017 1:20 PM, Edouard Lafargue [email protected] [KX3] wrote:


  Excellent news, Wayne!

  If only you could consider making the "Mic Btn" settings
mode-dependent, my life would be complete (or thereabouts). Right now
this is the #1 setting I need to change all the time: when using the Mic
on SSB I have to enable "Ptt", and when switching to DATA to connect my
audio card for digital modes I need to set it to "Off" because the audio
card jack I use keys PTT... :)

73 de ed w6ela

On Fri, Feb 17, 2017 at 6:05 PM, Wayne Burdick <[email protected]
<mailto:[email protected]>> wrote:

    Hi all,

    Beta firmware rev. 2.70 is now available on our KX3 software page.
    See release notes below for details.

    For instructions on installing beta releases, refer to our KX3
    software page. (Beta releases are not automatically recognized by
    KX3 Utility.)

    73,
    Wayne
    N6KR

    * * *


    MCU 2.70 / DSP 1.49, 2-17-2017

    * AM TX BANDWIDTH INCREASED: The AM transmit bandwidth is now
    approximately 100-4000 Hz (was 100-3000). TX EQ can be used to
    further shape the passband.

    * AM TX ALC IMPROVEMENTS: Fixed a bug in the AM power-control
    algorithm that was causing power output to start too high, then
    decrease over time when the operator is speaking. In addition, peak
    power output is now displayed, rather than power/4 (25%). This is
    intended to make the operator aware of the actual output from the
    radio, which accounts for the observed current drain, stress on
    dummy loads or antennas, etc.

    * SCANNING WORKS WITH FREQUENCIES BELOW 1.0 MHz. Previously,
    scanning would stall in this case.

    For software developers:

    * DT, FR, and FT HOST COMMANDS DISALLOWED IN TX MODE: Previously,
    these commands (data submode, unsplit, and split) could be sent to
    the K3 during transmit from software applications. This could
    sometimes cause side effects such as muting of transmit audio in
    DATA modes.

    * RIT CLEAR SWITCH UPDATES RIT OFFSET AT PX3 PANADAPTER.

    * POWER-OUTPUT CONTROL COMMAND (“PC”) FIXED: The PC command now
    correctly handles the KX3’s power ranges (up to 12 W or 15 W
    depending on band).

    * PSK31/PSK63 SELECTION (ETC.) VIA REMOTE COMMAND: When the DATA
    submode is being modified under remote control, a software
    application can now select between PSK31/PSK63 using the UP/DN
    control commands. Similarly, UPB/DNB can be used to select the
    desired TEXT decode mode (DEC OFF, TX ONLY, RX THRn). To determine
    the current state of any of these parameters, use the DS or DB
    commands. Refer to the Programmer’s Reference.

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