Specifications

GV200 @Track Air Interface Protocol
TRACGV200AN003 – 98 –
3.2.36. NMEA Output Control
The command AT+GTNMC to activate /deactivate the sending of the NMEA sentence through
the second port.
 AT+GTNMC=
Example:
AT+GTNMC=gv200,1,,,,,,,0014$
Parameter Length(byte) Range/Format Default
Password 4 – 6 '0' – '9' 'a' – 'z' 'A' – 'Z' gv200
NMEA Mask <=2 00-FF
1
Reserved 0
Reserved 0
Reserved 0
Reserved 0
Reserved 0
Reserved 0
Serial Number 4 0000 – FFFF
Tail Character 1 $ $
 < NMEA Mask >: As output configuration of NMEA through second port.
 Bit 0 for GPRMC.
 Bit 1-7: Reserved.
The acknowledgment message of AT+GTNMC command:
 +ACK:GTNMC,
Example:
+ACK:GTNMC,060100,135790246811220,,0014,20090214093254,11F0$
Parameter Length(byte) Range/Format Default
Protocol Version 6
XX0000 – XXFFFF, X∈{‘A’
– ‘Z’,’0’ – ‘9’}
Unique ID 15 IMEI
Device Name <=20 '0' – '9' 'a' – 'z' 'A' – 'Z' '-' '_' '?'
Serial Number 4 0000 – FFFF
Send Time 14 YYYYMMDDHHMMSS
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