Telit Wireless Solutions SL869T3-I, Руководство пользователя

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SL869T3-I Product User Guide
1VV0301546 Rev. 3
Page 23 of 68 2021-03-31
The following talker IDs are used:
Talker ID Constellation
GN GNSS (multiple constellations)
GP GPS
IR NavIC (formerly IRNSS)
GA Galileo
BD BeiDou
GL GLONASS
QZ QZSS
Table 6-3 NMEA Talker IDs
6.1.2. Proprietary Messages
The receiver can issue several proprietary NMEA output messages ($PSTM) which report
additional receiver data and status information. The following are disabled by default.
Message ID Description
TG
Time Information & Number of satellites used in
navigation
TS Information for tracked satellites
PRES/VRES Position/Velocity residual
SBAS SBAS
CPU CPU utilization and clock frequency
NOTCHSTATUS Notch Filter status
Table 6-4 Proprietary Output Messages
6.2. NMEA Input Commands
The receiver uses NMEA proprietary messages for commands and command responses.
This interface provides configuration and control over selected firmware features and
operational properties of the module.
The format of a command is:
$<command-ID>[,<parameters>]*<cr><lf>
Commands are NMEA proprietary format and begin with “$PSTM”.
Parameters, if present, are comma-delimited as specified in the NMEA protocol.