Motorola M12 Oncore User Manual page 18

Motorola GPS Products
M12 Oncore User' s Guide Supplement
Revision 1.0 01/25/00
SELECT DATUM
The GPS receiver has one predefined datum in its internal memory and one user
definable datum. The datums are referenced by an ID number. The predefined
datum is number 49 and the user defined datum is number 50. The user instructs
the GPS receiver which datum to use by sending the Select Datum command. The
command contains the ID number of the desired datum and the GPS receiver
returns the response message which gives the user the ability to validate that the
input command was accepted. The user can instruct the GPS receiver to use the
user defined datum by sending the Select Datum command set to 50.
Default datum: WGS-84 (ID code 49)
18