1 Quick Start
MiLLennium GPSCard SW Version 4.503/4.52 Command Descriptions Manual Rev 2 17
Table 1-1 GPSCard Pseudorange Differential Initialization Summary
Initialization - Reference Station

Differential mode of operation is established at the reference station through a two step process: fix position and

logging observation and correction data.

FIX POSITION

The reference station must initialize the precise position of its reference antenna phase centre (lat/lon/hgt). This is

accomplished by utilizing the GPSCard FIX POSITION command. The syntax is as follows:

Syntax:
Example:
fix position 51.3455323,-114.2895345,1201.123,555,0
Reference Station Remote Station
Required:
FIX POSITION lat lon hgt id (health)
LOG port DATATYPE ontime 5
Recommended Options:
LOG DATATYPES (binary): RTCMB
RTCAB
RTCM
RTCA
LOG DATATYPES (ascii): RTCMA
RTCAA
Related Commands/Logs:
RTCMRULE
DATUM
Required:
ACCEPT port DATATYPE
Recommended Options:
ACCEPT DATATYPES (binary): RTCM
RTCA
ACCEPT COMMANDS (ascii): RTCMA
RTCAA
Related Commands/Logs:
RTCMRULE
DATUM
POSA/B
VLHA/B
CDSA/B
GPGGA
Example 1:
fix position 51.3455323 -114.2895345 1201.123 555 0
log com 1 RTCM ontime 2
Example 2:
fix position 51.3455323 -114.2895345 1201.123 555 0
log com2 rtcaa ontime 2
Example 1:
accept com2 rtcm
log com1 posa ontime 1
Example 2:
accept com2 commands
log com1 posa ontime 0.2
log com1 vlha ontime 0.2
Note:Italicized entries indicate user definable.
FIX POSITION lat lon height station id health