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How to use dual FT-817 or FT-818

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Ciemon
2020-05-02
2020-05-03
  • Ciemon

    Ciemon - 2020-05-02

    I'm using an FT-817 and FT-818 for satellite ops, and whilst it's possible to work linear satellites without computer aided rig control I'd like to see if it makes operation that much easier.

    I'm using Gpredict as the front end, and whilst I can get rigctld running for the FT-817 using:

    $ rigctl -m 120 -r /dev/ttyUSB0

    attempting to use:

    $ rigctl -m 120 -r /dev/ttyUSB1

    for the FT-818 just crashes the attempt.

    Now line 409 of README.developer states: "The rule is one backend per protocol family." So does this mean that supporting two FT-81# radios can't work even if an FT-818 module (duplicate of the FT-817) was added to the code?

    Is there another option?

    Thanks.
    Ciemon

     
  • Michael Black

    Michael Black - 2020-05-02

    The "one backed per protcol family" doesn't mean one rig per instance of rigctl.
    Probably better said said as "one backend per manufacturer or protocol" since manufacturer is the biggest grouping.

    And you should be able to do what you want.
    1 - Please add "-vvvvv -Z" to the command line so we can see better what's going on.
    2 - Can you compile the lastest hamlib from https://github.com/Hamlib/Hamlib and test that too?

    de Mike W9MDB

     
  • Michael Black

    Michael Black - 2020-05-03

    With gpredict you should be running rigcltd, not rigctl.
    And the 2nd rigctld needs a different port.
    rigctld -m 120 -r /dev/ttyUSB0
    rigctld -m 120 -r /dev/ttyUSB1 -t 4533

    de Mike W9MDB

     
  • Ciemon

    Ciemon - 2020-05-03

    Fixed instantly. Thank you Mike.

    I was already using rigctld rather than rigctl, that was a bad copy paste. But I hadn't found anything that referred to -t 4533, that prevented the crash and everything subsequently works. Now to go back through the man pages to find the -t that I missed.

     

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