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Thread: Tetra call setup in DMO repeater mode

  1. #1
    Join Date
    Feb 09, 2013
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    Country: Finland

    Default Tetra call setup in DMO repeater mode

    I'm trying to setup an amateur DMO repeater from MTM5400 connected to Svxlink (Raspberry pi).
    I do get squelch signal over PEI, but I'm having trouble controlling PTT when the MT is in dmo repeater mode.
    It's to be set with AT+CTOM=6 to dmo repeater mode, and the call should be setup with either AT+CTSDC or AT+CTDCT.
    But it won't accept anything I've come up with.
    AT+CTSDC=0,0,0,1,1,0,1,1,0,0 works in dmo mode, but not in repeater mode.
    While it IS possible to turn the PTT with a raspi gpio, PEI control would be quite clean to have.

    Well shit. I've been looking at ETSI EN 392-5 V2.2.1 without checking what the latest is..
    I'll be back. Still, any ideas?


  2. #2
    Join Date
    Feb 09, 2013
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    Default

    I read the newer ETSI EN 293-5 V2.5.1 to no avail. I've got no clue as to if it's even possible to issue PTT over PEI when in dmo repeater mode.
    This would be very nice, as I got a wetech passive plus holder for MTP850. I'm planning on setting it up as a temporary, easily movable svxlink -repeater