Unit reverts back to sim mode after adjustment
It suggests that the transponder or wiring is faulty. I had the same problem and noticed the wire leading to the transponder was worn and exposed in a small area (it had rubbed against the aluminuium of the boat). I have yet to fix the problem - but it may mean a replacement transponder and connection!.
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after a couple od months of no use,I went to my choice of lakes and went to use my x47ex and it also goes right back to sim mode. this unit has never been wet and is always stored in my garage when not in use. I bought it in 2004.
I have the same problem, after about 5minutes normal operation it revertsto simulator mode.
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