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Digirig

The Digirig gets controlled with rigctld -- I use different models for the HF and the FM rig -- but the rig configuration is the same for both:

  "hamlib_rigs": {
    "my_rig": {
      "address": "127.0.0.1:4532",
      "network": "tcp"
    }
  },

Packet radio

Using AX.25+agwpe within pat in combination with Direwolf -- but this combination felt a bit slow (which might only be my subjective opinion).

  "ax25": {
    "engine": "linux",
    "rig": "",
    "beacon": {
      "every": 3600,
      "message": "Winlink P2P",
      "destination": "IDENT"
    }
  "agwpe": {
    "addr": "127.0.0.1:8000",
    "radio_port": 0
  },

The agwpe section is used by Direwolf:

% direwolf -c /etc/direwolf/direwolf.conf -p
Dire Wolf version 1.7
Includes optional support for:  gpsd hamlib cm108-ptt dns-sd

Reading config file /etc/direwolf/direwolf.conf
Audio device for both receive and transmit: plughw:1,0  (channel 0)
Channel 0: 1200 baud, AFSK 1200 & 2200 Hz, A+, 44100 sample rate.
Ready to accept AGW client application 0 on port 8000 ...
Ready to accept KISS TCP client application 0 on port 8001 ...
DNS-SD: Avahi: Failed to create Avahi client: Daemon not running
Virtual KISS TNC is available on /dev/pts/8
Created symlink /tmp/kisstnc -> /dev/pts/8

The direwolf.conf file looks like this (comments removed):

ADEVICE  plughw:1,0
CHANNEL 0
MYCALL OE7DRT
MODEM 1200
PTT /dev/ttyUSB0 RTS DTR
AGWPORT 8000
KISSPORT 8001
IGTXLIMIT 6 10

Direwolf will warn you if the input audio level is way off; I adjust them with the program alsamixer (F6 to select the USB soundcard, then F5 to list all devices, disable Auto Gain Control with m (mute)).

VARA FM

The corresponding configuratoin in the pat config file:

  "varafm": {
    "addr": "127.0.0.1:8300",
    "bandwidth": 0,
    "rig": "my_rig",
    "ptt_ctrl": true
  },

Start rigctld with a Dummy model - just to use the USB port of the Digirig for PTT:

$ rigctld -m 1 -p /dev/ttyUSB0 -P RTS -s 9600 -vvvv

I start VARA FM by running a small script called varafm.sh:

#!/usr/bin/sh
# Start VARA via wine

WINEPREFIX=/home/dominic/.wine-winlink wine "C:\\VARA FM\\VARAFM.exe"

In VARA FM set the USB soundcard, adjust the volume in alsamixer and on your radio, set PTT to VOX -- I tried to use COM1 but that crashed wine several times (that is why I set up rigctl before).

If you need to stop rigctl: you can usually do that with CTRL + C but this might not work. So either stop the running pat process by hitting CTRL + C in the "pat terminal" or by killing rigctld with kill $(pgrep rigctld).

I also adjust the volumes while connecting to keep the ALC (DIG gain on the TX-500) correct and also the input volume in VARA FM.

VARA HF

Back to the TX-500, the pat configuration looks like:

  "varahf": {
    "addr": "127.0.0.1:8300",
    "bandwidth": 2300,
    "rig": "my_rig",
    "ptt_ctrl": true
  },

I start rigctld like:

$ rigctld -m 2014 -r /dev/ttyUSB0 -d /dev/ttyUSB0 -p /dev/ttyUSB0 -P RTS -s 9600 -vvvv

Untested, untested...

Mobilinkd

I will use AX.25+linux in pat with the TNC4 paired via Bluetooth.

First of all, power on the TNC4 and pair it -- I use blueman-manager for this.

Then we need the serial port -- right click on TNC4 Mobilinkd and select Connect with Serial port

That will create a serial port at /dev/rfcomm0.

In order to use it in pat, we need to use kissattach on that serial device.

First we need to setup an AX.25 port called wl2k in /etc/ax25/axports:

# /etc/ax25/axports
#
# The format of this file is:
#
# name callsign speed paclen window description
#

#1	OH2BNS-1	1200	255	2	144.675 MHz (1200  bps)
#2	OH2BNS-9	38400	255	7	TNOS/Linux  (38400 bps)
wl2k  OE7DRT  1200  255 7 Winlink

This needs also some configuration work in the pat configuration:

  "ax25_linux": {
    "port": "wl2k"
  },
  "serial-tnc": {
    "path": "/dev/rfcomm0",
    "serial_baud": 9600,
    "hbaud": 1200,
    "type": "Kenwood",
    "rig": ""
  },

Now we can attach a KISS interface to the serial port:

$ sudo kissattach /dev/rfcomm0 wl2k
AX.25 port wl2k bound to device ax0

Select your PacketRadio Gateway (CALLSIGN-10 usually) and connect using AX.25+linux.

To de-attach the KISS interface we need to kill the process by:

$ sudo kill $(pgrep kissattach)

Some systemd unit-file examples

Put them into $HOME/.config/systemd/user. I created them at the beginning of my "Linux Winlink journey" but actually I only let pat start the webgui at boot - the other stuff I start with scripts or I search the command history (autocomplete) in my shell.

I don't even let pat listen to something because this is my main laptop and I like the services started in a terminal window where I actually can see some output when running.

pat

[Unit]
Description="pat winlink"
After=network.target rigctld.service ardopc.service
Wants=rigctld.service ardopc.service

[Service]
Type=simple
ExecStart=/home/dominic/bin/pat --listen "ardop,telnet" http
TimeoutSec=10

[Install]
WantedBy=default.target

rigctld

[Unit]
Description="rigctld for TX-500 using Digirig"
After=network.target
Before=pat.service ardopc.service

[Service]
Type=simple
; -m 2005 for Lab500 TX-500 CAT protocol
; ExecStart=/usr/bin/rigctld -m 2050 -r /dev/ttyUSB0 -p /dev/ttyUSB0 -P RTS -s 9600 -vvvv
; -m 2014 for Kenwood TS-2000 CAT protocol
; ExecStart=/usr/bin/rigctld -m 2014 -r /dev/ttyUSB0 -p /dev/ttyUSB0 -P RTS -s 9600 -vvvv
ExecStart=/usr/bin/rigctld -m 2014 -r /dev/ttyUSB0 -d /dev/ttyUSB0 -p /dev/ttyUSB0 -P RTS -s 9600 -vvvv
TimeoutSec=10

[Install]
WantedBy=default.target

You can change the used protocol (Kenwood TS-200 or _Lab599 TX-500_l for CAT control within the menu on the TX-500 (last menu setting)).

ardopc

[Unit]
Description="ardopc for TX-500 using Digirig"
After=network.target
Before=pat.service

[Service]
Type=simple
; ExecStart=/home/dominic/bin/ardopc 8515 hw:1,0 hw:1,0 -c /dev/ttyUSB0:9600 -p /dev/ttyUSB0:9600
ExecStart=/home/dominic/bin/ardopc 8515 plughw:1,0 plughw:1,0
TimeoutSec=10

[Install]
WantedBy=default.target

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