I have this working: A Raspberry Pi with a TT4 connected by a USB cable.? I am using Pat software, and I learned a lit about it from KM4ACK's videos, and also from https://www.k0swe.radio/pipat.? I followed KM4ACK's
"Easy as Pi Access Point WIFI Hotspot"
"Raspberry Pi Hotspot Tools"
"Install Winlink on Raspberry Pi 4 Part 1 2019"
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and this: https://groups.google.com/forum/#!topic/pat-users/vujSjYpkSEY
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This was also helpful: https://github.com/la5nta/pat/wiki/AX25-Linux
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I also installed KM4ACK's
"Install the Emergency Email Server"
as I am doing this to prepare for emergency support.
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If you install a GPS, I found that in /etc/default/gpsd, I needed to set USBAUTO="false" and DEVICES= "dev/ttyUSB1"
otherwise, gpsd interfered with ax.25 connecting with the TT4 on /dev/ttyUSB0
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Bill Dornbush AA6BD
