Watchdog

I use watchdog to monitor my RPI. Do services go offline or the RPI is not responding, watchdog kicks in and restart the system. Now I also want watchdog to watch my Linbpq. This is possible with watchdog, watchdog looks at a PID file. As far as I know, no PID file is created when starting Linbpq.

Now there is a possibility that when starting Linbpq with systemd a command can be given so that a PID file is created.

This is my linbpq.service file from systemd

This command creates a linbpq.pid file, now it is possible that watchdog monitors linbpq.

At the end of my watchdog configuration file (/etc/watchdog.conf) I have added the following line.

Take a look at what happens when you stop Linbpq.

Yes the system is ReBoOtInG (I hoop)

Lcd Display on a PI

After a busy period, I finally have a bit  “Me Time” again.

David KI6ZHD (drache), has written a fantastic article about setting up and configuring a RaspBerry PI. This article also contains a piece about setting up an LCD display at the GPIO port of the Raspberry PI.

This can be read here.
http://www.trinityos.com/HAM/CentosDigitalModes/RPi/rpi2-setup.html#60a.appendix-i2c-lcd

I have ordered a 20×4 LCD display and an I2C LCD interface on the internet.The price was $ 14.96 including shipping costs. Nice.

Take the time to read this good article.

http://www.trinityos.com/HAM/CentosDigitalModes/RPi/rpi2-setup.html

Winlink Gateway HB9AK

As Winlink Gateway i`m using HB9AK from Switzerland on dail 7.050Mhz. HB9AUR (Martin) is the Operator (SysOp) of HB9AK.
I have test the system of Martin with Winmor, Ardop, Robust 300/600. I have a old AEA DSP2232 modem that can make Pactor 1, but i have some issues to get things going.

HB9AK is a big boy with many possibilities. Here a small list.

Technical details of HB9AK (JN36PV, 650 m asl):

QRGs (dial frequency): 3’613.0, 7’050.0, 10’144.4(NB), 14’108.9, 18’114.4, 21’113.5 (NB: narrow band only). Use USB for all QRGs. Center frequency is 1.5 kHz higher than dial frequency.

TRX1 (40m): KENWOOD TS-590S, dipole(N/S); Modes WINMOR, PACTOR(1-4), Robust Packet Radio, ARDOP, VARA

TRX2 (30m): KENWOOD TS-590SG, dipole(N/S); Modes WINMOR(500), PACTOR(1-2), ARDOP

TRX3 (20m): KENWOOD TS-590SG, dipole(N/S) or LogPer; Modes WINMOR, PACTOR(1-4), Robust Packet Radio, ARDOP, VARA

TRX4 (80m/17m/15m): KENWOOD TS-590S, 80m dipole, 17/15m fan dipole; Modes WINMOR, PACTOR(1-4), Robust Packet Radio, ARDOP, VARA

Technical details of HB9AK-1 (JN47LI, 1130 m asl):

TRX5 (10m): ICOM IC-706, vertical dipole; Modes WINMOR, PACTOR(1-4), Robust Packet, ARDOP, VARA

TRX6 (2m): MOTOROLA GM340, X-50; Mode Packet Radio AFSK 1200 Bd, BPSK 1200 Bd, BPSK 2400 Bd, QPSK 2400 bps, QPSK 3600 bps

Technical details of HB9AK-14 (JN46FS, 3020 m asl):

TRX7 (10m): KENWOOD TS-480SAT, Inv-V; Modes PACTOR(1-4), Robust Packet, WINMOR, ARDOP, VARA

I have contacted Martin, and we have been talking for a while about anything and everything. I asked him about his configuration, he found it no problem to share it.

 Very nice system. 

ClusterHat….

New project.

https://clusterhat.com/

 

Related NewsGroups

BPQ32
https://groups.yahoo.com/neo/groups/BPQ32/info
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https://groups.yahoo.com/neo/groups/LinuxRMS/info
Direwolf Packet
https://groups.yahoo.com/neo/groups/direwolf_packet/info
Winmor
https://groups.yahoo.com/neo/groups/WINMOR/info
Ardop
https://groups.yahoo.com/neo/groups/ardop/info
Ardop
https://ardop.groups.io/g/main
Scs Tracker Modes
https://groups.io/g/SCS-Tracker-Modem
Digital Amateur Radio
https://groups.io/g/digital-amateur-radio
Digital Radio
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Vara Modem
https://groups.io/g/VARA-MODEM
RaspberryPi 4 Hamradio
https://groups.io/g/raspberrypi-4-hamradio
Network 105
https://groups.io/g/network105
T.A.R.P.N
https://groups.io/g/tarpn
Pactor and Packet Group
https://groups.io/g/pactor