Figure 5-22: Magnetic Declination Estimated Value Screen - Edgetech 4125I User Hardware Manual

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setDeclination <CR>
Help for command:
setDeclination, [D]
[D]: Declination angle (degrees), which is the correction between magnetic north and true
north. This value depends on geographic location.
Declination for your location can be found by going to the following website:
http://www.ngdc.noaa.gov/geomag-web/#declination
Here is an example of how using this website can help you to determine your angle of
deviation:
• Zipcode 02360 was inserted, then "Get & Add Lat/Lon" was selected:

Figure 5-22: Magnetic Declination Estimated Value Screen

4125i/4125 SIDE SCAN SONAR SYSTEM 0004823_REV_G