User's Manual

12
APPENDIX
GT3100 SPECIFICATIONS
Physical Parameters
Enclosure dimensions 88(L)*76(W)*25(H)
Weight 100g
Electrical
DC Supply voltage 12V
DC Tolerance voltage
9V－16V
Current (GPRS online) 60mA
Current (GPRS transmission) 80mA
Current (Peak) 120mA
GPRS*
Frequency Range (MHz) Support 4-frequency 850/900/1800/1900
Channel spacing (Hz) 200
GPRS connectivity GPRS multi-slot class 8
GPRS mobile station class B
SIM card interface 3V/5V
SMS storage Capacity 40 in ME
Antenna Connector Silver Male TNC or SMA
Antenna Impedance 50ohms
GPS*
* Data provided by trimble
Protocol NMEA0183
Baud Rate 9600
Signal 1575MHz
Number of Channels 12 Channel Simultaneous Operation
Accuracy Horizontal <5 meters (50%), <8 meters (90%)
Altitude <10 meters (50%), <16 meters (90%)
Velocity 0.06 m/sec.
Hot Start: <10 sec. (50%), <13 sec. (90%)
Warm Start: <38 sec. (50%), <42 sec. (90%)
Cold Start: <50 sec. (50%), <84 sec. (90%)
Antenna Type Active 3.3V
Antenna Connector Gold Male SMA