Specifications

VP ONCORE COMMAND REFERENCE
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DATUM SELECT (@@Ao)
The VP receiver has 49 predefined datums in its internal memory and
two user definable datums. All datums are referenced by an ID number.
The predefined datums are numbered 1 through 49 and the user-defined
datums are numbered 50 and 51.
The user instructs the GPS receiver which datum to use by sending the
Datum Select command. The command contains the ID number of the
desired datum and the GPS receiver returns a 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 one of the two
user defined datums by sending the Datum Select command with the
datum ID set to 50 or 51.
Datum IDs 50 and 51 are set at the factory to default to WGS-84
parameters, but may be changed by the user with the User Defined
Datum (@@Ap) command.
Default Datum: WGS-84 (ID code 49)
45 Synergy Systems, LLC 05OCT01