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where Table 6.91 outlines the response message format:
Field
STATUS:
SYNC
TYPE
STID
STHE
AGE
QA
OFFSET:
SETUP:
MODE:OFF
PORT:A
AUT:N
SPD:0300
STI:0000
STH:0
MAX:0060
QAF:100
SEQ:N
TYP
180
Table 6.91: RTC Response Message Structure
Indicates with an * that synchronization between base and remote has been established.
Valid only for REMOTE mode.
Indicates type of message being sent (base) or received (remote).
Displays the station ID or received from the base station.
Displays the station health or received from the base station.
In BASE mode, displays the elapsed time in seconds between the beginning of the
transmission of Type 1 or 9 messages. In REMOTE mode, displays the age of the
received messages in seconds.
Displays the communication quality factor between base and remote.
•
Defined as 100 x number of good messages/total number of messages
Valid for REMOTE mode only.
Displays the number of bits from the beginning of the RTCM byte (in case of a bit
slippage).
Displays differential mode either base (BAS), remote (REM) or disabled (OFF).
Displays port used to send or receive RTCM corrections.
Displays auto differential mode. Default is N. Used only in REMOTE mode.
RTCM bit rate. The number of bits per second sent to the differential serial port. Used
only in BASE mode.
User-supplied station ID. Default is 0000.
User-set reference station health. Default is 0. Used only in BASE mode.
Maximum age, in seconds, allowed for a message to be used to compute a
differentially corrected position. Default is 60. Used only in REMOTE mode.
The criteria to be applied when evaluating the quality of communication between base
and remote. Used in computing QA. Default is 100. Used only in REMOTE mode.
Indicates if there is a check for sequential received message number for the message to
be accepted. Default is N. Used only in REMOTE mode.
Indicates the RTCM message types the receiver can generate. Messages available are
1, 3, 6, 9, 16, 31, 32, 6G, 34, and 36. Message 2 is not generated. Used only in BASE
mode.
Description
GG Surveyor GPS+GLONASS Reference Manual
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