Nevermind my question about the gains, I had way too high audio gain on input
to FreeDV which was distorting the sound.
With the correct setting everything is fine.
On September 21, 2019 3:14:37 PM UTC, walt...@k5wh.net wrote:
>Adria,
>
>
>
>Yes we do use FreeDV on LSB for frequencies below
Hi Walter,
That's the beauty with SDR, I don't need different hardware to experiment, I
can use any type of modulation I want on the same radio device.
Feel free to experiment with it yourself, the code of this is free software and
it's basically just an user interface wrapper around GNU radio
Ahh, very good Adrian.
Sounds like some great experimentation you have going there.
I believe I remember hearing in the past that the modem in FreeDV for HF does
not work as well for VHF/UHF and David created the 2400A/B modes to help with
that.
You might have better success trying
Hi Walter,
Thanks for the info, I'll add the correct filters for LSB.
I'm not using it for Taurus-1, this is still experimental and not ready to be
deployed on anything serious. For LEO sattelite usage on FreeDV, I need to add
Doppler tracking like I have for the other modes.
This is a
Adria,
Yes we do use FreeDV on LSB for frequencies below 10mhz.
Perhaps I did not understand your setup completely, but it seems to be using
UHF that your transmitting on.
Are you setting this up for the Taurus-1 satellite? Ie.. UHF FM uplink and ssb
codec-2 downlink?
I have
Hi,
I got FreeDV 1600 and 700C working with the PlutoSDR and the RTL-SDR. if
anybody is interested: https://www.youtube.com/watch?v=s63SSf9Yhjg
Many thanks to A. Maitland Bottoms who maintains the GNU radio FreeDV
module.
I feel that either I'm not setting the input gain into FreeDV correctly or
