Marine Electronics Forum

True north or Mag north?

Old 02-03-2007, 08:04 PM
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Default True north or Mag north?

I have 2 chartplotters on my boat, 1 takes C-Map NT the other Navionics Gold. Does anyone know if these were written useing Magnetic or True north? And does it make a differance with the accuracy of finding bottom structure? I run mine in the Magnetic North setting so they match the compose, just sittin' here wondering.
Old 02-03-2007, 09:35 PM
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Default Re: True north or Mag north?

True or magnetic north setting has no affect on the positional accuracy or positional affects of the particular type of chart system.

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