[Elecraft] WSJT-X K3/K3s hanging as Tx

[Don Wilhelm]

Thank you Joe for going public with that instead of private email!
I will not respond other than this.

73,
Don W3FPR

On 11/13/2017 7:46 PM, Joe Subich, W4TV wrote:
> 
>  > Use software PTT in the applications while W4TV figures out what is
>  > going on with the MicorHam  gear.
> 
> Damn it Don! *DON"T TELL USERS HOW TO USE MICROHAM PRODUCTS*
> The microHAM instructions are very clear - *NEVER USE CAT FOR PTT*
> YOU HAVE NO BUSINESS HANDING OUT INSTRUCTIONS THAT VIOLATE THOSE
> OF THE MANUFACTURER.  How would you like it if I told Elecraft users
> to run their transceivers at 24 V to minimize IMD in the power amp?
> 
> Using CAT for PTT results in hot switching of amplifiers, antenna
> relays, and other devices like antenna preamps while using hardware
> PTT assures proper operation of sequencing circuits that assure
> audio, external antenna switches, amplifiers, etc are switched *before*
> the transceiver is placed into transmit.
> 
> Even the K3 PTT to RF delay is not sufficient to accommodate switching
> delay in old amplifiers, EME sequencers or the LNA/preamp bypass relays
> for external (active) receive antennas.
> 
>> Are all those having a similar problem using MicroHam something? or
>> does it occur with other interfaces.
> It occurs with other manufacturers products and CAT PTT - nearly every
> manufacturer has a race condition in their controls when CAT and
> hardware are mixed.  Since CAT PTT has serious problems with hot
> switching and most software includes specific PTT to CW and PTT to
> Audio delays specifically to avoid hot switching, use of *HARDWARE*
> PTT is always the smart choice.
> 
> 73,
> 
>     ... Joe, W4TV
> 
> 
> On 11/13/2017 7:08 PM, Don Wilhelm wrote:
>> Bert and all,
>>
>> Use software PTT in the applications while W4TV figures out what is 
>> going on with the MicorHam  gear.
>> Are all those having a similar problem using MicroHam something? or 
>> does it occur with other interfaces.
>>
>> 73,
>> Don W3FPR
>>
>> On 11/13/2017 7:00 PM, Bert Garcia N8NN wrote:
>>> The CAT and PTT are on different COM ports, per the installation 
>>> instructions for the microKEYER II when using WSTJ-X.  And it's not a 
>>> stray RF problem as I have all the equipment bonded together, ferrite 
>>> cores on the audio and control lines, a line isolator in the feedline 
>>> where it enters the house, and line isolators between the rig and amp 
>>> and between the amp and antenna tuner.  The lockup happens when 
>>> running only 30 watts with FT8.  It never happens when running a KW 
>>> on many other modes.  I run RTTY, PSK and other digital modes with no 
>>> problems.
>>>
>>> Thus, I suspect the issue is associated with the WSRJ-X software as 
>>> the same issue occurs with various transceivers in multiple locations.
>>>
>>>
>>
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