[Elecraft] K3 vs. KX3 with wsjt-x

[Bob McGraw K4TAX]

Make sure you are using only one PTT method.  CAT  or VOX but never both.  I prefer CAT as any signal or any noise on the audio line will trip the VOX and thus hold it in transmit. 

Bob, K4TAX


Sent from my iPhone

> On Oct 21, 2018, at 11:04 AM, Bill Frantz <frantz at pwpconsult.com> wrote:
> 
> I indeed had MIC BTN on, and turned it off. I the KX3 still didn't go into receive when I pressed the "Halt Tx" button. (MIC BIAS was already off.)
> 
> Another issue I didn't mention before seems to have gotten worse. Sometimes pressing the "XMIT" button on the KX3 doesn't take it out of transmit mode. When I press it it stays in transmit. Press it again and it still is in transmit. It finally goes into receive when wsjt-x gets to its receive phase.
> 
> I am still having problems developing a mental model of what is actually happening here. Maybe I'll have to download the wsjt-s source code and start reading code again. But that's what I retired from years ago. :-)
> 
> 73 Bill AE6JV
> 
>> On 10/20/18 at 3:35 PM, rna at mosslight.com (Robert Albano) wrote:
>> 
>> Turning the MIC BTN off fixed the problem.  Now Halt Tx stops the KX3 as well.
>> 
>> Should MIC BIAS be off as well?
>> 
>> 73 Robert K7RNA
>> 
>>> On 2018 Oct, 20, at 3:26 PM, Robert Albano <rna at mosslight.com> wrote:
>>> 
>>> I have the same behavior:
>>> KX3
>>> PX3
>>> SignaLink
>>> MacBook Pro
>>> CAT interface
>>> 
>>>> On 2018 Oct, 20, at 2:21 PM, Bill Frantz <frantz at pwpconsult.com> wrote:
>>>>  I have noticed an significant difference between the way my K3 and KX3 work with wsjt-x. On the
>> K3, the "Halt Tx" button immediately stops transmission on the radio. With the KX3, the radio remains in transmit mode, although the computer has stopped sending audio. I have to press the "XMIT" button on the radio to get it back to receive mode. It is as if the CAT command to take the radio out of transmit mode isn't being sent or is not being processed by the radio.
>>>>  Not that on both radios other actions which use the CAT interface, like changing bands from the
>> wsjt-x UI, work correctly.
>>>>  The K3 has been upgraded to the internal sound card/RS232 interface from the K3S.
>>>>  The KX3 is being used with a USB <--> RS232 cable and a home brew audio interface using a
>> mini-dongle USB sound "card".
>>>>  The computer in both cases is a MacBook Pro.
>>>>  Has anyone else experienced this issue?
>>>>  73 Bill AE6JV
>>>>  -------------------------------------------------------------------------------------
>>>> Bill Frantz        | Government is not reason, it is not eloquence, it is force; like
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