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C NMEA-0183 Messages
104 DSM 132/132RS Receiver User Guide
C.6 NMEA-0183 Message Structure
NMEA-0183 messages are strings of comma-delimited text.
Figure C.5 shows the structure of an
NMEA-0183 message.
Figure C.5 Example showing NMEA-0183 message structure — ZDA
Each NMEA message includes:
• an identifier to distinguish it from other messages in the data
stream
• one or more fields of data, separated by a comma
• a checksum (preceded by *) to validate the data
$GPZDA,220320.0,26,06,1997,00,00*52
Checksum
Sentence ID
Field 1
Field 2
Field 3
Field 4
Field 5
Comma Delimiter
Field 6
Asterisk Delimiter