Specifications

GT300 @Track Air Interface Protocol
- 25 -
+RESP:GTBND,135790246811220,1,0,0,1,4.3,92,70.0,1,121.354335,31.222073,2009010100
0000,0460,0000,18d8,6141,00,11F0,0102070202
+RESP:GTNMR,135790246811220,1,0,0,1,4.3,92,70.0,1,121.354335,31.222073,2009010100
0000,0460,0000,18d8,6141,00,11F0,0102070202
Parameter
Length(byte)
Range/Format
Default
unique ID
15
IMEI
number
2
1
reserved
1
0
reserved
1
0
GPS fix
1
0|1
speed
<=5
(0.0-999.9)Km/h
heading
<=3
0-359
altitude
<=10
(xxxxx.x)m
GPS accuracy
2
0-50
longitude
<=20
xxx.xxxxxx
latitude
<=20
xx.xxxxxx
GPS UTC time
14
YYYYMMDDHHMMSS
mcc
4
0XXX
mnc
4
0XXX
lac
4
cellid
4
reserved
2
00
count num
4
ver
10
HHHHSSPPPP
— <number>: The number of position in the report message. It is always “1” for the following
five report messages:
+RESP:GTEST / +RESP:GTSOS / +RESP:GTRTL /
+RESP:GTMSA / +RESP:GTBND / +RESP:GTNMR
— <reserved>: This parameter field is reserved.
— <GPS fix>: 1: Successful GPS fixing; 0: Failure of GPS fixing.
— <speed>: Speed over ground. Accurate to one decimal.
— <heading>: azimuth in degrees.
— <altitude>: altitude of the terminal. Accurate to one decimal.
— <GPS accuracy>: The HDOP defined in NMEA0183. The range of value is 0-50. The
smaller the value is the higher the accuracy.
— <GPS UTC time>: UTC time from GPS.
— <mcc>: Mobile country code. It is 3 digits in length and ranges from 000-999.
— <mnc>: Mobile network code. It is 3 digits in length and ranges from 000-999.
— <lac>: Location area code in hex format.
— <cellid> : Cell ID in hex format.
— <reserved>: This parameter field is reserved, always 00.
— <count num>: Similar to the acknowledgement messages, all the report messages also include
this parameter field.