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DSM 132/132RS Receiver User Guide 125
NMEA-0183 Messages C
C.23 PTNLSM Proprietary (RTCM Special)
The PTNLSM message is a Trimble proprietary message for
identifying the Reference Station ID and the ASCII Text message that
is included in an RTCM Type 16 Special Message. The PTNLSM
message is generated anytime an RTCM stream receives a valid Type
16 Special Message.
The PTNLSM message structure is:
$PTNLSM,0022,This is a message,*.XX
Table C.21 describes these fields.
6 Direction of longitude
E: East
W: West
7 GPS quality indicator
0: Fix not available or invalid
1: Autonomous GPS fix
4: Differential, code phase only solution (DGPS)
8 Number of satellites used in GPS solution
9 DOP of fix
10 Ellipsoidal height of fix (antenna height above ellipsoid)
11 M: Ellipsoidal height is measured in meters
Table C.21 PTNLSM message fields
Field Description
1 Reference station ID number, ranging from 0 to 1023. Leading
zeros must be added to fill four-digit field.
2 ASCII text message contained within the Type 16 RTCM message.
Table C.20 PTNL,GGK message fields (continued)
Field
In this appendix:Description