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BottomPounder

Jonny P ?

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BottomPounder

I was up to red jan 10 and talked to u on the ice one day. Just updated from the h20 to the expedition c mainly for the pressure history. It works great for telling if the pressure is going up,down,or steady.I have found that it doesnt seem to give a accurte reading.Just wondering how yours has been? Noticed u can adjust the altimeter yourself or run it just by the gps. Wondering what has seemed to work best for you? Any info would be great, thanks alot!

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Random guy

Mine is dead on with the local weather tower reading through the weather service.

One thing I did notice is if you are in a house or vehicle buttoned up tight the heating system will build pressure and mess it up. Put it in your vehicle then roll the windows up turn on the heater and watch the current reading, it will jump until you crack a window.

As for adjustments I'm not sure, going to have to look in the book...guessing it is somewhere in that novel.

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BottomPounder

Thanks for the info about it being inside,it makes sense. Mine has been reading 1 full point lower than it should with the local tower. If it is 29.80 mine reads 28.80 Thanks again... I might have to call lowrance on this one.

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Random guy

Hmmm thats interesting, let me know what they say. I looked in the 4,000 page owners manual and didn't find anything about it.

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Giant_Jackpot

I have a Casio watch that has a barometer function and it is impossible to keep it in sync with the weather service. Although you want it to be fairly close, just remember that it is the trend you are looking for so I would not worry too much if it is off a little.

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