Thanks Bill,  I've just spent the last few days changing from a Windows 7 32-bit PC to one that's WIndows 10 64-bit including upgrading to WSJT-X v2.1.0 and JTAlert 2.13.10, while bringing along my LOG4OM.  Whew, couldn't have made it without all I've learned here on-line from everyone's experiences.  Now ;you're procedure on volume control is the finishing touch.  I've got the device and WSJT-X set at 0db (didn't even know about volume mixer, but I found it).  Now I can hardly keep the level down to keep from seeing ALC on the meter even with the PWR slider at the bottom.   I liked it better with 32-bit where I could tweak the PWR slider mid-range to just see the meter movement on ALC.  Am I understanding your procedure correctly???   Thanks and 73, Herb. WB8ASI

Ø  The Windows mixer control behaves differently with the 64-bit version of WSJT-X, it is no longer controlled by the "Pwr" slider in WSJT-X. You must adjust it manually which should be a one time operation. The best way to adjust it is to click "Tune" in WSJT-X to get a transmission started, you can have the rig power at minimum while you do this adjustment. You need to have the "Sounds->Playback devices->'your-selected-output-device'->Properties->Levels" visible with the slider therein set to decibels (right-click and select decibels). Set the WSJT-X Windows Sound Mixer slider to maximum, that will also push the master level for that device to maximum and you will see a corresponding change to the device level slider you previously opened. If the device level slider shows 0dB then you are done, if it shows higher than 0dB (e.g. some devices can go to +14dB) then you *MUST* reduce the device level slider back to 0dB. This last step will automatically reduce the mixer WSJT-X slider and the mixer master level slider, and that is fine so leave them alone.

Hi Bill.

I’ve followed this procedure carefully here and compared the result between both the 32 and 64 bit versions on my Win10Pro PC.  BTW, the Level on my output device (Flex DAX Audio Tx <not the IQ one>) will not exceed 0dB.

On a 100W-max Flex, the 64bit version cannot be made to exceed 28W when you hit Tune.  For the 32bit version, 75W out.  Both of these are into a dummy load.

Not an issue for me, but an interesting benchmark.  64bit operation is worth the power trade-off when the band’s loaded on weekends and the obviously speedier decoding of the 2^nd and 3^rd pass are worth it.  If there’s an ATNO out there that I can’t hit with those power levels during this Solar Minimus, there’s always the “foot warmer” available.

BTW, I do choose to use the Kenwood TS-2000 to define the Rig, not the FlexRadio 6xxx.  When the PC gets really busy (WSJT-X, N1MM+, JTAlertX, Log4OM, Log4OM Communicator, PSTRotatorAz, SmartSDR, SmartSDR CAT, Smart DAX, with OS profile management in a Windows NT-domain), I’ve experienced some latency issues with the latter control.  When I tried SO2R with 2 instances of WSJT-X 2.0.1 GA during RTTY RU last January, I almost brought this decade-old  Intel i5 3GHz PC to its knees.  I’m hesitant to push it that hard again.  J

Thanks for handling and addressing all these issues for the world’s operators! 

73 John W7CD

Hi John,

it's good that the DAX devices will not add digital gain. VAC can but also can be disabled in that case.

You should get exactly the same power output between the 32-bit and 64-bit versions of WSJT-X if the Windows mixer control for WSJT-X on the DAX Tx speaker device is set to maximum (this is based on your assurance that the DAX input devices have no digital gain). You are missing something when carrying out the procedure above is you are not. Once the one off procedure above has been executed the WSJT-X "Pwr" slider should behave the same for either version although you may find the granularity of steps slightly different and there may be some small discontinuities as you slide the "Pwr" control up and down with the 64-bit.

73
Bill
G4WJS.

I installed version 2.1 and now when I transmit or tune I have to move the Pwr slider nearly all the way to the top to get the correct output. The levels control in the mixer no longer changes the power level, I've set it from 10% to 90% but it doesn't change the level to WSJT-X. What am I missing? I used to have the level set to 40% and the Pwr slider about 80% up. This is with WIndows 10. Any help is appreciated,
Jim

Hi Jim,

there's nothing wrong with having the "Pwr" slider all the way up, that should be your default starting place when adjusting the Tx audio levels.

The Windows mixer control behaves differently with the 64-bit version of WSJT-X, it is no longer controlled by the "Pwr" slider in WSJT-X. You must adjust it manually which should be a one time operation. The best way to adjust it is to click "Tune" in WSJT-X to get a transmission started, you can have the rig power at minimum while you do this adjustment. You need to have the "Sounds->Playback devices->'your-selected-output-device'->Properties->Levels" visible with the slider therein set to decibels (right-click and select decibels). Set the WSJT-X Windows Sound Mixer slider to maximum, that will also push the master level for that device to maximum and you will see a corresponding change to the device level slider you previously opened. If the device level slider shows 0dB then you are done, if it shows higher than 0dB (e.g. some devices can go to +14dB) then you *MUST* reduce the device level slider back to 0dB. This last step will automatically reduce the mixer WSJT-X slider and the mixer master level slider, and that is fine so leave them alone.

The last step above is absolutely critical as any gain applied in the digital domain will distort your Tx signal severely.

Note that none of the above is needed with the current 32-bit build of WSJT-X as in that case the "Pwr" slider adjusts the mixer control automatically and it remains within a safe range.

73
Bill
G4WJS.

I installed version 2.1 and now when I transmit or tune I have to move the Pwr slider nearly all the way to the top to get the correct output. The levels control in the mixer no longer changes the power level, I've set it from 10% to 90% but it doesn't change the level to WSJT-X. What am I missing? I used to have the level set to 40% and the Pwr slider about 80% up. This is with WIndows 10.

Any help is appreciated,
Jim

Hello, first time in this group.
I have been using WSJT for many years in a row for different
purposes, but now I am faced with a problem associated with my laptop.
As I understand it, WSJT uses the left channel to receive audio from
the transceiver. How to switch the program so that it reads the right
channel from the stereo plug. In WSJT-X there is a choice of channel
from the setup. In WSJT - no. Maybe this is possible in the
configuration file? Who knows? Thanks.


--
Best regards,
Oleg A65BR mailto:a65br@...

Bill,
Yes, using Omnirig at AA3AE. 
The configuration was rock solid until this update. 
Similar problem with Log4OM several months ago, they updated the program to ignore/catch misc data strings.
73, AA3AE

i am running a flex 6500.  windows 10.  smartsdr 3.0.19, wsjt-x 2.0.1

Sound an awful lot like the USB port going into power save/sleep mode. Make sure that USB is not set to save energy in the Power control panel. (I’m not a Windows guy, so maybe Google a bit for the appropriate place for your OS)
--
VE3TRQ  Ted

this is NOT a wsjt-x problem.  but, wsjt-x could help us flex users while the finger pointing continues.  i propose an optional feature which the user could select whereby an onscreen alert could show the time elapsed since the last decode.  thereby we could be proactive in closing and reopening dax and possibly avoid losing a qso in midstream. 

what at do y’all think about this?

w3bs
buddy