FreeDV is a framework that incorporates the Codec2 voice codec and various modems. The usual modems on HF use OFDM modulation; multiple carriers, so not suitable for the QDX.
On Sun, Oct 10, 2021 at 11:59 PM Buddy Brannan <
buddy@...> wrote:
So¡idle question really, but ¡
Given that this outputs digit modes using a sound card, could it be used for FreeDV? Very narrow digital voice mode:
Pretty interesting if it could. Of course, if it won¡¯t tune past the Digital portions of the band, I guess the point is moot, but still, idly curious.
Buddy Brannan, KB5ELV - Erie, PA
Email: buddy@...
Mobile: (814) 431-0962
> On Oct 10, 2021, at 7:08 AM, Tom, wb6b <wb6b@...> wrote:
>
> On Sat, Oct 9, 2021 at 07:52 AM, Hans Summers wrote:
> The main QRP Labs page is
> I just read the "draft" manual. So many good ideas for practical designs already worked out by an expert. Hans, Ashhar and Jack (all experts) are forging ahead on new SDR designs and all of them are great resources for practical knowledge. As well as some nice kits coming along, so it seems.
>
> Tom, wb6b
>
Shirley Dulcey KE1L