I run 3 radios at once, an IC-7600,
an IC-7300 and an IC-9700 in 3 different instances of WSJT-X
2.4.0-rc1 with Linux Mint 20.1 (based on Ubuntu). I use the
--rig-name option on the command line as explained in the manual
for running multiple instances. The radios are all USB
I have lots of problems managing the
sound devices. They change names, configs that worked fine for
days suddenly stop working, sound cards disappear from the list,
the 2m IC-7900 instance will suddenly start displaying the same
40m audio that the IC-7600 is displaying after having worked
fine for hours. Weirdness like that. Sometimes they work fine
Part of the config confusion is due
to how linux manages USB audio devices. The names WSJT uses for
the audio devices will vary depending on the order in which the
devices are discovered by the OS. So depending on what order
you plug them in, the audio names will move around between
different radios. They should always get discovered after a
reboot the same order, so make sure everything is plugged in and
turned on before rebooting.
I've tried using the Burr-Brown
settings you listed below but I find after a while they will
sometimes suddenly stop working, and then go missing in WSJT-X
even after a reboot.
I have better luck with the
hw:CARD=CODEC,DEV=0 entries for both transmit and receive. But
the system volume control doesn't appear to change the levels on
those devices. That can be a problem on the IC-7600 since
output USB level can't be changed on the radio so the level
stays in the red, but it seems to work. I change the USB
levels in the other radios themselves where possible. The CODEC
card name changes for each radio. CODEC for the first, CODEC_1
for the second, CODEC_2 for the third.
"head -1 /proc/asound/CODEC/stream0"
"head -1 /proc/asound/CODEC_1/stream0" and "head -1
/proc/asound/CODEC_2/stream0" is useful to me in figuring out
which USB port is assigned to which sound device when using the
Also, a hint for reliable CAT control
on linux Mint/Ubuntu, use the names in /dev/serial/by-id for the
CAT control. These entries have the model of the radio in the
name, and they link to the correct /dev/tty devices even when
they get reordered.
73, John N9ZL
On 2/20/21 2:43 PM, Pa3gcu wrote:
I have been playing with different radios and devices on linux
this week, i find that things change every time one reboots,
However i have found that my IC705 which i have to define as a
IC7300 (at least with wsjtx 2.1.2 and 2.2.2) works well
with the following devices;
You may well see a difference from Jim's (VE4CY) possibly
because he has a IC-9700 or he uses some or other
sound configuration device.
On another note, i see you mention 2 different radio's, i
wonder do you run both at the same time under 20.04??.
If so i would be very interested to hear just how you
configure the system as i have enormous trouble when i try to
run my FT950 together with a Microham MKIII keyer and the
IC705 using it's internal codec's.
Anyway hope this help's.
Regards Richard PA3GCU.
Can anyone point in me in the direction of some guidance
for setting up the audio with either IC7300 or IC9700 in
Ubuntu 20.04 ?
I don't seem to be able to get it behaving - I either get
the Tx audio coming out the LapTop speakers or none at
Also Linux keeps changing the system sound to use the
Radio devices each time I plug them in.