Anyone still using FreeDV?

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I read the old post about FreeDV, are people still using it, and what do I need to do these days to try it?
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Bill -VA3WTB

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Posted 2 years ago

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Tom

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(Edited)
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KG9DW

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Hey Bill....I tried it back in May when I still had my 6500. The waveform worked ok but wasn't the greatest. I ended up using the Windows freedv client and dax. There were a couple of guys (the same guys) on 20m all the time. That was about it. It worked, but it wasn't a big deal. - Mike, KG9DW
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hans weijers

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Hello Bill, we in the Netherlands have an active group FreeDV users. Weekly we have a sked on 3630 Khz on Monday, Wednesday and Friday 14:45 UTC for half an our. You can find us on the QSO-Finder: qso.freedv.org . The Flexradio owners do NOT use the waveform provided by FRS because when transmitting very nasty spikes are produced which at the end can destroy a Mosfet PA. This problem was communicated with FRS, a ticket was made and they confirmed the failure but the issue, dated from October 2016, still is NOT solved. It is an internal timing problem in the Flex6X00 series. So we use the programm FreeDV version 1.2.2 from David Rowe (see www.freedv.org ) and we are experimenting with mode 700C instead of the mode 1600.So please take care when you are using the FreeDV waveform from FRS in combination with a Mosfet PA and be aware of the transmit spikes. Hans - PA0HWB
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Andrew Russell

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I use freeDV as the FRS version only supports USB and the digital voice standard follows the phone system of LSB for 40 and longer. Free DV works well on 630m on ground wave and is within the bandwidth allowed in VK.
Andrew VK5CV
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W3EX -- Tom

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I still have it working with the 6300 but have not heard any signals on 20 meters in the last several weeks.
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Glenn Depp

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It is now 2019 and I have seen no new versions of FreeDV.  I just recently purchased my first Flex and was looking forward to this, however, does not seem like it is widely in use.  Also I had the software versions of the SSB Digital voice before and was able to change speeds for HF conditions.  This version for the flex does not allow for changing speeds, that I have found.  Has anyone heard of anything new for DV for the Flex?

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Michael Coslo

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I have it. I have heard a few conversations on 20 meters, but never made a QSO.  I'm still not sold on Digital audio on HF - the digital cliff effect kinda requires a very strong signal.
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Andrew Russell

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FreeDV is still under development with a 700bps mode that rivals SSB.
FRS has not updated the waveform plug in for over 2years with USB only restricting use for 20m and higher. FDV improvement not included. Someone with the time and skills needs to take it on. The same for Dstar that has not worked for me for years. I can use FDV like other digital modes with DAX and CAT.

http://www.rowetel.com/?p=6103

A local club is organising an FDV QSO party.

http://www.areg.org.au/archives/209376

Andrew VK5CV
(Edited)
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Glenn Depp

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Digital voice is used in many areas within HF radio.  Amateur use is only one and very limited.  Limiting digital audio to upper side band is not a complete issue as the use of upper side-band is not outside of FCC rules on the lower bands, it is a very old "rule" that no longer is needed and LSB is not used in much in other services outside of Amateur Radio. I would love to see someone who programs software take on this FreeDV digital voice mode as well as any others that are open source.  If the FCC will drop the baud rate limitations for amateur use in HF then many possibilities for digital voice could open.