Yaesu FT 757GXII : How to set PTT ?

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2008-07-02
2013-01-15
  • Remi Chateauneu

    Remi Chateauneu - 2008-07-02

    Hi,

    Yaesu FT 757GXII

    $ rigctl -m 107 -r /dev/ttyUSB0 -p /dev/ttyUSB0

    Rig command: f
    Frequency: 144000

    Rig command: T
    PTT: 1

    Rig command: t
    PTT: 1

    Rig command: T
    PTT: 0

    Rig command: t
    PTT: 0

    * The frequency is correct.
    * I can see that DTR is switched when activating PTT.

    But the Yaesu does not see anything, just normal reception;

    Any idea please ? Thanks in advance?

     
    • Nate Bargmann

      Nate Bargmann - 2008-07-08

      Good question.  :-)

      So the DTR line from your computer is tracking the rigctl PTT command correctly as I understand it but the radio is not keying.  If you manually ground pin 4 of the CAT port, does the radio transmit?

      If not, then I suspect the problem is in the radio.  :-(

      I do have a radio handy to test this on.

       

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