Thread: Wandering A/P
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Old 07-07-2022, 10:29 AM   #20
wkearney99
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City: Bethesda, MD
Vessel Name: Solstice
Vessel Model: Grand Banks 47 Eastbay FB
Join Date: Feb 2018
Posts: 2,164
As for your AIS, if you've got the FA-50 then you'll probably need to do an update on it. The one connected to my four MFD12 units needed updating. You need to use a Windows PC connected into the same network as the FA-50. The issue was the firmware in them needs to be updated to reflect the changes of GPS satellites in the 20 years since it was first programmed. The update it quick to install. If you haven't done an update on it any time in the past two years then you'll likely NEED to do it.

For us the symptom was others couldn't see our AIS data. We could see theirs without issue. The FA-50 requires it's own GPS antenna and if it can't get a proper signal then it will not transmit.

I recently replaced two of the four MFD12 plotters with two TZT16F plotters. The TZT16F requires a slightly hole but otherwise fits perfectly in the same spot.
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