[OZAPRS] HF APRS with linux soundmodem.

[David]

Hi Steve...i have a friend who wants to use a soundcard and soundmodem 
with APRS and Xastir......
how did u use soundmodem for 1200bps VHF APRS......is there a simple way 
or do you have to add all the ax25 files and configs etc....

tnx for your help

73 David VK4BDJ



Steve wrote:
> Hello all,
>
> I've been using the open source "soundmodem" software 
> (www.baycom.org/~tom/ham/soundmodem/) under Linux for 1200bps/VHF APRS 
> for years. I've never had a problem with it on VHF at all. In fact, 
> I've never even used a real TNC.
>
> However, I have never successfully decoded a packet on 300bps HF. I 
> can audibly hear data on 10.147.6 USB, and I have the soundmodem 
> software set up for AFSK, 300bps, tone 1 = 1600Hz, tone 2 = 1800Hz. 
> Everything looks good on the in-built scope and spectrum displays.
>
> If anyone else out there is using soundmodem under a Unix-ish OS, and 
> has actually been able to use it on HF, I could really do with some 
> pointers!
> If someone (who has a working system) could show me what they have 
> configured in /etc/ax25/soundmodem.conf it would help a lot.
>
> Thanks very much in advance,
>
> Steve (VK2ZSZ).
>
>
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