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FreeDV waveform isn't working, I don't think

EdDial Member
edited April 7 in SmartSDR for Windows
I installed the posted FreeDV waveform on my 6600M using 3.2.31 SmartSDR. The installation went well under Windows 10 and the second part of the installation on SmartSDR also went well. I can open the status window on the Windows desktop and select SDV from the mode pulldown, but the status windows reports "No FreeDV Slice" and there is no noticeable difference on the radio other than narrowing the bandwidth and offseting the carrier marker. I can still hear atmospherics and can decode analog USB signals. What should the user experience be? Do I have to find a DV signal for the status window to respond?

Best Answer

  • WX7Y
    WX7Y Member ✭✭✭
    Accepted Answer

    D-Star needed a USB interface device and API and FreeDV just needed the API.

    There hasn't been any support for D-Star and FreeDV API's for several years and there has been NO work done to update the API by whoever wrote the API which NEVER got updated is why I think FLEX stopped supporting it.

    The normal Stand alone software runs very well using DAX and CAT and of course a Computer Speakers and Microphone and the 2nd sound devices. 

    This way you have the latest and greatest Version of FreeDV which is updated ALL the time on your computer.


  • VE7ATJ_Don
    VE7ATJ_Don Member ✭✭

    Hi EdDial... someone who is using/has used the FreeDV waveform may chime in with more current info, but my understanding is that Flex no longer supports the dongle nor the software. I don't believe the vendor who was involved in the product is still in existence, or at least no longer develops/works on the FreeDV waveform.

    I've seen numerous threads on the community about the lack of updates to the waveform/hardware.


  • EdDial
    EdDial Member
    I didn't see any mention of the need for additional hardware for FreeDV. Are you thinking of the D-Star waveform?

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