M12 Oncore Users Guide Supplement - deetc - isel
M12 Oncore Users Guide Supplement - deetc - isel
M12 Oncore Users Guide Supplement - deetc - isel
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Motorola GPS Products<br />
<strong>M12</strong> <strong>Oncore</strong> User’s <strong>Guide</strong> <strong>Supplement</strong><br />
Revision 1.0 01/25/00<br />
SET USER DATUM<br />
The GPS receiver has one user defined datum stored as ID number 50. The User<br />
Datum command allows the user to define the constants used for a custom datum.<br />
A datum is defined by a semi-major axis, an inverse flattening constant, and an<br />
offset from the center of mass of the earth given as delta-X, delta-Y, and delta-Z<br />
parameters.<br />
Default values: WGS-84 parameters<br />
20
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