It sounds like both the softmodem (direwolf) configuration and audio path are suspect at this point.
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Maybe try the kernal soundmodem module instead of direwolf and see if it decodes packets?? ?If it does....maybe you're there (and fix the direwolf config or not).? ? If it doesn't, maybe look at the audio path some more?
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Commands would be:
modprobe mkiss
soundmodem -c PTT -v 2
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/etc/ax25/soundmodem.conf (i have this.? ?something similar...)
<modem>
?<configuration name="CAT">
???<chaccess txdelay="150" slottime="100" ppersist="40" fulldup="0" txtail="10"/>
???<audio type="alsa" device="plughw:3,0" halfdup="1" capturechannelmode="Mono"/>
???<ptt file="/dev/ttyUSB0" hamlib_model="1001" hamlib_params=""/>
???<channel name="Channel 0">
?????<mod mode="afsk" bps="1200" f0="1200" f1="2200" diffenc="1"/>
?????<demod mode="afsk" bps="1200" f0="1200" f1="2200" diffdec="1"/>
?????<pkt mode="MKISS" ifname="sm0" hwaddr="W1MJC-5" />
???</channel>
?</configuration>
?<configuration name="PTT">
???<chaccess txdelay="150" slottime="100" ppersist="40" fulldup="0" txtail="10"/>
???<audio type="alsa" device="plughw:3,0" halfdup="1" capturechannelmode="Mono"/>
???<ptt file="/dev/ttyUSB1" gpio="0" hamlib_model="" hamlib_params=""/>
???<channel name="Channel 0">
?????<mod mode="afsk" bps="1200" f0="1200" f1="2200" diffenc="1"/>
?????<demod mode="afsk" bps="1200" f0="1200" f1="2200" diffdec="1"/>
?????<pkt mode="MKISS" ifname="sm0" hwaddr="W1MJC-5" />
???</channel>
?</configuration>
</modem>
/etc/axports (i have this.? ?something similar.....)
sm0 ????W1MJC-5 ????????0 ??????128 ????4 ??????KPC-9612+ defaults
sm1 ????W1MJC-6 ????????0 ??????128 ????4 ??????KPC-9612+ defaults
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If getting a physical TNC is an option......that'd let you eliminate direwolf (or soundmodem) configuration problems as a factor.
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