I am using a UDRC2 from NWDigital radio, the UDRC2 goes on a Raspberry Pi and uses Direwolf sound modem program that has a TCIP KISS or AGWPE interface.
The UDRC has two transmit ports, when using Xastir and configuring an "interface" this is called the "Radio Transmit Port"
Port 1 is 9600 baud
Port 2 is 1200 baud
APRSIS32 seems to only use port 0.
I actually saw an error message from APRSIS32 that said something like "invalid radio port 0" or something like that.
But I can not tell you where I saw that error as I just spent 5 minutes going through the numerous menus trying to figure out how I displayed the error messages.
But anyway how can I set APRSIS32 to use radio port 2?