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  •  » Garmin N2k - Can't send data to GMI20 custom channels

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    6/09/2018 7:43 am  #1

    krcswo
    Navigator

    Offline

    Registered: 6/09/2018
    Posts: 6

    Garmin N2k - Can't send data to GMI20 custom channels

    I am in the process of setting up Expedition on my boat.
    ​I have a Garmin instrument system.
    ​It is using the ActiSense USB adapter to connect to the N2k network.

    ​I have information from my instrument system coming in to Expedition.
    Wind speed, wind angle, boat speed, etc.

    ​I am trying to send data through the custom Channels.
    Polar BSP, Polar BSP%, Target BSP, Target BSP%

    ​I set it up in Expedition using User channel 0 to 3.
    ​I created a page on one of my GMI20 displays in the cockpit that displays custom channels 0-3.
    ​But they are always blank on the display unit.

    ​I have the info in number boxes in Expedition.
    ​The number boxes are updating in real time based on data from my instruments.
    ​But, it would be much better if I could send this information to the cockpit.

    Any ideas what to try next? 

     

    6/09/2018 1:52 pm  #2

    Nick
    Moderator

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    Registered: 9/16/2015
    Posts: 3,517

    Re: Garmin N2k - Can't send data to GMI20 custom channels

    In the Exp N2K PGNs, have you selected to send the 126720 PGN?

     

    6/12/2018 2:42 am  #3

    krcswo
    Navigator

    Offline

    Registered: 6/09/2018
    Posts: 6

    Re: Garmin N2k - Can't send data to GMI20 custom channels

    Thanks Nick.
    I suspected I was missing something simple.

    I found the place to enable sending of the 126720 PGN, once that was done I had data on my cockpit displays.

    The only issue I am having now is the size of the text on the displays is good for a while, then suddenly increases in size such that it doesn't fit on the display anymore.  If I change pages on the GMI20 and then go back to the custom data the sizes return to normal.

    Any ideas for this?

       •Thread Starter
     

    6/12/2018 3:25 am  #4

    sparky
    Admiral

    Offline

    From: Cambridge UK
    Registered: 4/27/2018
    Posts: 286

    Re: Garmin N2k - Can't send data to GMI20 custom channels

    Sounds like a bug in the software/firmware on the display.

    I would go to Garmin with the issue.

     

     

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