I wonder if some of these rigs are avoiding hot switching PTT and ya'll are in 
a borderline case.
Under the Advanced tab try changing the PTT delay to 0.2s instead of 0.1s.
Mike W9MDB




 

    On Thursday, March 18, 2021, 02:49:51 AM CDT, Saku <oh...@sral.fi> wrote:  
 
  
HI!
 
This TX without audio (randomly) has been there from "stone age". There were 
some versions backwards that it appeared very seldom. Now with 2.3.0 again 
little more often.
 Usually then when you see rare square or DX and start to transmit ;-( So 
always look at Pwr meter and stop/start TX if no output at first go.  There can 
be something related to recent band change. During these years I have not been 
able to reliably reproduce it.
 
So it exist, but so seldom that you get used to it.
 wsjtx 2.3.0 
 Ic-7300
 Fedora 32
 -- 
Saku
OH1KH 
 Kevin McQuiggin kirjoitti 17.3.2021 klo 19.03:
  
 
 Hi Bill and [WSJT-X Devel] group: 
  More info on this bug: 
  This “TX but no audio” on first transmission after band change issue persists 
as well in 2.4-rc3, using an iMac and KX3.  Second TX cycle, all is well.  The 
behaviour is generally reproducible, but not always.  I’ve seen it on FT8, 
MSK144, and Q65.  I can make another video for YouTube using 2.4-rc3 if that 
will help, but the behaviour is unchanged from 2.3.0 other than the problem 
occurring as well on new mode Q65. 
  I note that the workaround of hitting “Tune”; then “Halt” after each band 
change usually seems to fix the issue, but this does not always prevent the 
behaviour either. 
  I will assist in testing as required, just let me know. 
  73, 
  Kevin VE7ZD 
    
 On Mar 17, 2021, at 9:48 AM, David Birnbaum <dbirn...@gmail.com> wrote: 
  
  
I've been having the same issue - no transmit audio although TUNE does work.  
Same setup except I'm connected to the IC7300 directly via USB.
 
 
  dave k2lyv    _______________________________________________
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