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Thread: Chart jumping around

  1. #1
    Ausfish Gold Member 552Evo's Avatar
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    Jul 2016
    Location
    Melbourne

    Chart jumping around

    On the water now, and when I started the Mfd an hour ago it took a few minutes to find satellites for the gps signal.
    Now it’s got good signal but the map/chart is jumping around. Never done it before ?
    The mfd is a Simrad nss EVO2 with only the internal gps antenna.
    I’ve restarted the unit.
    Checked satellite settings- it shows 8 or so satellites.
    Any ideas ?
    Thanks


    Saltwater fishing, boat mad but has a job that gets in the way.

  2. #2

    Re: Chart jumping around

    Is it the chart rotating or is your indicated position changing. If you are sitting still and its rotating try switching to north up

  3. #3
    Ausfish Gold Member 552Evo's Avatar
    Join Date
    Jul 2016
    Location
    Melbourne
    Thread Starter

    Re: Chart jumping around

    Yes I’ve got it on north up.
    I tried the other options to, heading up and course up.
    It’s like the boat is 200 m long and the chart is swinging around the boat position?


    Saltwater fishing, boat mad but has a job that gets in the way.

  4. #4

    Re: Chart jumping around

    Don't know - you have a fair bit of gear around it from the photos in your switch panel thread. Did you tidy up any wires behind the dash above the unit that could be causing interference to the signal. Are the signal strengths the same as you used to get when the system was working properly?

  5. #5
    Ausfish Gold Member 552Evo's Avatar
    Join Date
    Jul 2016
    Location
    Melbourne
    Thread Starter

    Re: Chart jumping around

    Thanks scottar yes same signal strength 4 bars.
    Hmm I did mount the nmea backbone right behind me he mfd. maybe I’ll move the backbone on my next work day on the boat.


    Saltwater fishing, boat mad but has a job that gets in the way.

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