Used Symbols For Describing The Nmea Formats - Leica TPS1200 series Technical Reference Manual

F.2
Description
Header
NMEA Message Formats

Used symbols for describing the NMEA formats

NMEA messages consist of various fields. The fields are:
• Header
• Special format fields
• Numeric value fields
• Information fields
• Null fields
Certain symbols are used as identifier for the field types.
These symbols are described in this section.
Symbol Field
$ -
--ccc Address
Description
Start of sentence
• -- = alphanumeric characters identifying
the talker
Options:
GP = GPS only
GL = GLONASS only
GN = Global Navigation Satellite System
like WAAS and EGNIOS
TPS1200
Example
$
GPGGA
1341