Navionics app

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Hi.

Has anybody had a root around with the Navionics chart app?

I am generally quite impressed,but have a question / challenge.....
Does anybody know where the wind data is downloaded to and read from?

I think the data is a GRIB file from NOAA. If is, I was wondering of I could download other, bettet, GRIBS and read those instead?

Cheers,

John

Sent from my MB525 using XDA App

it adds wind direction arrows on the map, tough they are really hard to see. tapping arrows will give speed and direction info.

I'm running this on Desire Z. GPS seems to have serious issues whit this app. just cant locate me :/ Google maps works fine whit gps.. or is it that this doesn't use phone towers for added accuracy and google maps uses?