I saw Hams asking about running two instances of WSJT-X in the forums, so I thought I would try it. If you have a couple of radios and a couple of antennas it’s not hard to do and is pretty fun. I have done this on and off for a few weeks now and it’ll keep a Ham busy. In my station I am running on 20 and 40 meters with the Icom 7610 and Icom 7300. I have a 2 element 20 meter beam and a 40/80 meter inverted vee. They are both attached to the same tower.
Two Instances of WSJT-X Running Simultaneously
Is it useful? I am sure Hams can find a use for it. I do not think transmitting simultaneously (like in the video below) is acceptable in a digital (FT8) contest (check the rules). This technique should be useful for hunting DX and you can certainly make a lot of contacts quickly.
It is fun, but this operation keeps me busy and is a little tiring after a while. Some Hams may like this high activity.
Two Instances of WSJT-X Software Setup
There is some instruction on the WSJT-X website.
How should I configure WSJT-X to run multiple instances?
Start WSJT-X from a command-prompt window, assigning each instance a unique identifier as in the following two-instance example. This procedure will isolate the Settings file and the writable file location for each instance of WSJT-X. --rig-name=TS2000 --rig-name=FT847
My Screen Captures
WSJT-X JT Alert and Logging
I am running JT Alert, but I did not do anything special with it. In the WSJT-X Reporting tabs you’ll see different ports. That’s all that is needed.
Start one WSJT-X, then start JT Alert. Start the other WSJT-X, then start another instance of JT Alert. It’ll do the rest.
JT Alert is logging to my HRD Logbook. You can set up JT Alert to log to other logbooks.
I am using a USB cable for each radio.
In the second video below I am calling CQ and transmitting with both radios at the same time. This is not necessary because I can receive on one radio while transmitting with the other. I don’t get much interference. Have a look at the videos and thanks for watching!
Next up… DM780 running digital modes.
If you have any questions, please ask them here. I prefer the comment section here or in YouTube over e-mail because your comments and questions will help others as well.