AFSK 2400 Baud about direwolf HOT 6 OPEN

If you read https://github.com/wb2osz/direwolf/blob/master/doc/2400-4800-PSK-for-APRS-Packet-Radio.pdf , it talks about the various modes that were officially supported by TAPR modems but there is no mention of 2400bps AFSK. I searched around and I cannot find any mention of it anywhere and everything found (legacy AEA, TNC2, etc) talks about 2400bps support was PSK only.

It's also worth mentioning that per http://uz7.ho.ua/modem_beta/CHANGELOG.txt :

SoundModem v1.05 changes:

• Added "Pi/4 QPSK V26 2400bd" AEA DSP2232, MFJ2400, DireWolf V26B compatible mode.
  --

Soundmodem v1.05 was released back in December 2020 and the current version is v1.14 that was released in Oct 2022 (9 months ago). Is there any specific reason why you cannot switch to the standard 2400bps PSK mode?

from direwolf.

(1) Do you know what tones that UZ7HO soundmodem uses for 2400 baud AFSK? I could not find it in the documentation or anywhere on the screen when running the application and selecting that speed.

(2) Would you consider the 2400 bps PSK mode used by some models from MFJ, AEA, and Kantronics? I tested it with various combinations of pre-emphasis/none and de-emphasis/none and it worked great.

73,
John WB2OSZ

from direwolf.

from direwolf.

(1) Do you know what tones that UZ7HO soundmodem uses for 2400 baud AFSK? I could not find it in the documentation or anywhere on the screen when running the application and selecting that speed.

4800 bps AFSK, through voice radios does not seem possible with the limited bandwidth.

from direwolf.

Sorry for the delay, I had some health issues the last week.

I dont know but I try to ask him. Maybe he shares the info. Otherwise we could simply try, but I dont have a Windows Computer near me right now.

from direwolf.

Here are some infos. I hope the help.

xtal=6.5536
lo=1774
hi=3251
center=2512
shift=1477

xtal=8.0
lo=2165
hi=3970
center=3067
shift=1805

from direwolf.