Installing Direwolf and LinBPQ on Raspian Stretch

Jeff KP3FT has written a nice document about the installation of Direwolf and Linbpq on a Raspberry with raspbian Stretch. Download the complet document here.

Dire Wolf

Installing Direwolf and linBPQ on a new Raspian Stretch installation.  It’s a combination from various websites and documentation, condensed down into a straightforward walkthrough.  This doesn’t include configuration of most BPQ settings, only enough to get it to use Direwolf as a modem.

Older Raspian versions like Jessie may require Pulse Audio removed first, prior to installing Direwolf.  Raspian Stretch by default does not have Pulse Audio installed.  My Raspian config settings have SSH and VNC enabled.


After it restarts, install libasound:

Optionally install the following if you want to enable Direwolf to use the GPIO pin on certain USB sound devices for PTT:

Then install Direwolf (as of this writing, version 1.5 is the latest):

Plug your USB sound device(s) into the RPi, open a terminal, and run the following to verify the system sees the USB sound device(s).

If the Raspberry pi’s onboard audio is enabled, it will show up as Card 0, Device 0.  The USB sound device should show up as Card 1, Device 0.  A second USB sound device will show up as Card 2, Device 0, and so on.

Open the direwolf.conf file in a text-editor, scroll down, and enable the correct USB sound device by removing the # at the beginning of the appropriate line.  For example, on mine it is:

Scroll down and change “N0CALL” to your callsign in the line:

Enable the modem speed you want.  In my case, I enable 300-baud:

Scroll down and enable the appropriate PTT option for your setup.
Further down, enable and change the AGWPORT and KISSPORT settings for your setup.
Optionally disable all the APRS-related lines if you don’t want to use those functions.

Save the file and run Direwolf by double-clicking the desktop icon, or test-run it from Terminal with:

You should see packet activity if the radio is tuned on the right frequency and audio level is good.

Close Direwolf for now (CTRL-C) and install pilinBPQ (skip down to the Direwolf port section if pilinBPQ is already installed):

Copy an existing Linux bpq32.cfg from another source to /pi/linbpq. I have an old bpq32.cfg file here which would need some substantial editing for your own setup: .

Be sure to rename it to bpq32.cfg .If you don’t use the above bpq32.cfg file, and add one or both of these Direwolf ports in the ports section of whatever copy of bpq32.cfg you have, depending on how many Direwolf modems you want to run.  Change the port numbers to whatever works with your particular setup.  The timing settings can also be changed; these are what worked with my setup for 300-baud HF packet and 1200-baud VHF packet.

Save the file.

Start Direwolf.

Open another Terminal and start linBPQ:

It should connect to Direwolf(s) on port or whatever port(s) you set up.

Multiple instances of Direwolf can run at the same time.  Each instance has its own “.conf” file.  Each conf file needs to be edited to enable whatever port and USB sound device will be used.  To do that, just edit the original “direwolf.conf” file and save it under a new name, such as “direwolf_HF.conf”, etc.  Start each instance in Terminal using the “-c” switch to point Direwolf to the correct “.conf” file.  In my setup, I start the first Direwolf instance in Terminal with “direwolf -c direwolf.conf”.  The second instance is started in another Terminal with “direwolf -c direwolf_HF.conf”.

Direwolf has several options that can be used in the command line.  Three that I find particularly useful are the “-q”, -T”, and “-x” options.  By default, Direwolf shows audio in/out levels in its Terminal screen.  This can be turned off with “-q h”.  For example, when I run my HF 300-baud instance of Direwolf to disable audio reports, I run “direwolf -c direwolf_HF.conf -q h”

To show timestamps of sent and received packet frames, use the “-T” option with “%H:%M:%S”.  Example: “direwolf -c direwolf_HF.conf -q h -T %H:%M:%S” to disable audio reporting and show timestamds in hours-minutes-seconds format.

The “-x” option immediately starts Direwolf transmitting calibration tones, which I use mostly to key the transciever for tuning the antenna when I switch bands.  Example: “direwolf -c direwolf_HF.conf -q h -T %H:%M:%S -x”.  Enter CNTRL-C to stop the transmit.

The complete list of command-line options are in the Direwolf user guide, pages 126 through 128:

Fldigi and BPQ32

KP3FT post a example of how to setup FLdigi and BPQ32.

In the bpq.cfg driver settings, you will have to make changes for your own setup, but it does work.  For example, set the path to wherever your FLdigi executable is on your computer.  Also, set the default FLDigi mode to what you want.  In mine, the line “DEFAULTMODEM=PSK250R/1300” sets it to start FLDigi’s robust version of PSK-250 at 1300-hz waterfall frequency


FLdigi Setup


Bpq32 Log options

John G8BPQ has made it possible to move the log dir of linbpq and pilinbpq. Nice

I’ve uploaded versions of linbpq and pilinbpq to my beta download site
that allow you to move the log directory. Start with a command line
parameter of logdir=directory, eg

../pilinbpq logdir=/dev/shm


You can download the new version here.

LinBPQ Applications Interface.

LinBPQ has a facility to make a tcp connection from the node to an application running on the same machine. This was originally intended to connect to a shell to enable basic configuration editing, but has been generalised to allow connects to other tcp ports, thus allowing you to write your own applications to be used with LinBPQ.

Ok, that sounds nice. Let give it a try.

Fist setup Linbpq, add de “cmdport” to the telnet port section.

I have add “CMDPORT 63000” but it can by any number.
Now we have to add some stuff to /etc/services and /etc/inetd.conf



Now restart inetd. sudo killall -1 inetd

I have found a small script on the internet and make some adjustments.
This script is using some perl modules that has to be installed.

The script. /usr/local/linbpq/

Now we can run the script from linbpq. Let give it a try.

LinBPQ with Winmor port.

With the help of the config file of Jerry, N9LYA and some help from John, G8BPQ I have setup a Winmor port on my Linbpq.I use a Microham USB II as soundcard device connected to my Windows PC and a direct Cat kabel from my Linux PC to control the TRX.

Here is the section for the Winmor port. (BPQ32.CFG)


Winmor Status screen from Linbpq


Tnx for the help Jerry and John.

Complex BPQ32.cfg from N9LYA

N9LYA has setup a complex system using multi modes and multi ports. Using Packet 1k2 and 9k6, Hf Packet 300Baud, Robust packet, Winmor, Ardop, Pactor, Fldigi, Axip, Telnet.