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COM port puzzle

DrTeeth
DrTeeth Member ✭✭
edited February 2019 in SmartSDR CAT
SmartSDR says that I should use COM port 4 to connect 3rd party programs. Some won't connect to it (no other programs connected to it at that time). For example, I have had to connect WSJT-X to COM 6 [dedicated], that I 'made' for CAT.

Any idea why COM 4 cannot be used? Using TS 2000 in WSJT-X. This is not the only example I have come acroos. I have managed to get everything working, I'm just puzzled.

Mni tnx.

Answers

  • Al K0VM
    Al K0VM Retired Member ✭✭✭
    edited November 2017
    Guy,
       My best guess is that a previous program that used COM4 did not close its com port connection when the program was closed..   It may take rebooting the PC to make sure that COM4 was indeed closed before WSJT can use it..   Or maybe the previous program was not closed before WSJT was opened, in which case, just close WSJT and reopen it.   
      That's where I would start.

    AL, K0VM

  • George KF2T
    George KF2T Member ✭✭✭
    edited February 2019
    Also remember that each application needs its own COM port. A little confusing when the SmartCAT app says to connect to COM4 - but that's just the FIRST application you're using. Assign each program that needs either PTT or CAT functions its own port and you'll be in good shape.
     

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