Hi David, When I was testing the different modes with websdrs I recognized higher sideband noise (shoulders) in 700C mode compared with 800XA and 1600 mode at the same settings on my ANAN-100D. I am using narrow filtering on TX and pure signal. So I don't have an explanation for that.
Regards Gerhard -----Ursprüngliche Nachricht----- Von: David Rowe [mailto:[email protected]] Gesendet: Dienstag, 31. Jänner 2017 11:40 An: [email protected] Betreff: Re: [Freetel-codec2] FreeDV 700C early release I been sending a few SSB/700C test signals of 800 - 1500 km paths on 40M using a websdr to pick them up at the other end. In marginal conditions with SSB down in the noise I'm getting sync and audio through on 700C. Not sure if I have the same average tx power though. Also had a 700C QSO with a guy interstate. SSB very noisy but 6-8dB SNR on 700C. Noise free but some issues with his audio and the modem loosing sync every few seconds. Lot of frequency selective fading in both tests. Promising start.... - David ---------------------------------------------------------------------------- -- Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Freetel-codec2 mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/freetel-codec2 ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Freetel-codec2 mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/freetel-codec2
