Kayak Fishing Adventures on Big Water’s Edge - View Single Post

Lets_Fish · 06-01-2011, 09:45 PM

GPS works in geodetic north while your compass is using magnetic north. The declination for San Diego is around 13°+/-. Your's appears to be out by 22°, not sure why.

Here is a link to the USGS http://rockyweb.cr.usgs.gov/outreach...gps_north.html

Here is a link to help determine your declination http://www.thecompassstore.com/decvar.html

Hope this helps.

06-01-2011, 09:45 PM	#2
Lets_Fish Senior Member Join Date: Oct 2009 Location: Wildomar, CA. Posts: 294	Adjust for Declination GPS works in geodetic north while your compass is using magnetic north. The declination for San Diego is around 13°+/-. Your's appears to be out by 22°, not sure why. Here is a link to the USGS http://rockyweb.cr.usgs.gov/outreach...gps_north.html Here is a link to help determine your declination http://www.thecompassstore.com/decvar.html Hope this helps.