Brian Kantor, WB6CYT, SK

Very,very sad news…..

Below a mail from Phil Karn.

[44net] Brian Kantor, WB6CYT, SK
Date:       Fri, 22 Nov 2019 15:27:49 -0800 (11/22/2019 06:27:49 PM)

I have very sad news. My good friend, Brian Kantor, WB6CYT ,suddenly passed away this week at his home in San Diego, California.

Brian retired only two years ago after 47 years of service on the staff at the University of California San Diego (UCSD). Way back in the mid 1980s, Brian and I founded AMPRnet, the TCP/IP over amateur radio network. He continued to manage it until his passing.

Brian recently created and served as chair and CEO of Amateur Radio Digital Communications (ARDC), a charitable foundation funded by the sale of unused AMPRnet IPv4 addresses.  ARDC promotes STEM education and amateur radio digital development through scholarships and by funding the development of open source hardware and software.

Brian will be sorely missed and impossible to replace. Memorial arrangements will be announced when known.

Phil Karn, KA9Q

Systemd and Linfbb

I had some problems starting Linfbb with systemd. The problem turned out to be that Linfbb was running in the background. Systemd was thinking fbb was going offline and kept restarting. Now it is possible to provide start options with fbb.

Command line options of the fbb script :
-f : Software is run in foreground
-h : help information
-q : run silent
-l logfile : log debug info to logfile

Now I put the following in my fbb start file.

The unit file for systemd.

Systemctl status fbb

Now is fbb running just fine.

Monitor with Monit

A few days ago I posted a message about creating a pid file for linbpq. So that it becomes possible to monitor the process with watchdog.

You can read that here.

Now I use Monit to display this graphically. Why, because it looks nice. Now you immediately have an overview of running processes and their status.

The configuration file that I use for this.


SCS released PMOM

Not sure if people saw this but SCS has released a program to monitor Pactor 1/2/3 transmissions even with B2F/LZHUF-compressed messages for the Raspberry Pi:

David emailed them to see if they plan on releasing X86 versions and possibly packages for other distros like Ubuntu, Fedora, etc.  We’ll see what they say but this looks pretty cool!

Reaction of scs

Thank you for your inquiry.
Currently there is no plan to release PMON for other systems than Raspberry Pi. As also stated on the PMON web site, PACTOR-4 will follow in early 2020.

Thanks to David “Dranch”


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 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.

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.

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.


New project.

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