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Unusual problem with FT8

RandyRandy Member ✭✭
edited March 2020 in SmartSDR for Windows
Having problems using WSJTX's FT8.  Works fine on 20 meters, but will not work on 40 meters or 80 meters.  Have not tried on any other band.  Had initial problems which were solved by reinstalling DAX drivers.  I could then work 20, 40, and 80 meters.  Now I can only work 20 meters. FT8 shows no band activity.  Reloaded WSJTX and reloaded Smart SDR v2.0.19.98 and still 20 meters is all that will work.  Any ideas?

Completed · Last Updated


  • Bob K8RCBob K8RC Old Guy Member ✭✭
    edited January 2018
    Check yo make sure you're using USB or DIGU on all bands.
  • W9ILYW9ILY Member ✭✭
    edited July 2018
    Be sure  your DAX is selected so it is not "none"
  • RandyRandy Member ✭✭
    edited March 2020
    Working now.  I thought you would use DIGL on 40 and 80.

  • Justin_KL2DJustin_KL2D Member ✭✭
    edited November 2019
    I had the same problem today and reloaded the DAX drivers, now is working fine again. Must have been a W10 update? I followed the instructions here: https://helpdesk.flexradio.com/hc/en-us/articles/204017069-How-to-Manually-Re-Install-DAX-Drivers Sometimes a SSDR reload doesn’t reload the drivers, depending on how you proceed. Hope that helps, 73 Justin KL2D
  • RiaRia Member ✭✭
    edited January 2018
    Yep windows 10 blew up my drivers today. Going to do the reinstall dance tonight.
  • Mark_WS7MMark_WS7M Member ✭✭✭
    edited January 2018
    I made a Dax fix batch file based on on others work here. I should post it.
  • Mark_WS7MMark_WS7M Member ✭✭✭
    edited January 2018
    Ok posted these as a new item in the forum.  Hope they work for everyone!

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