GATOR GROUP CO. LTD M508 Manuale Utente

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3. Specifications 
3.1Hardware Datasheet
 
work voltage 
12VDC 
work current 
50mA~160mA 
GSM module 
Simcom300/340 
inside contain frequency GSM 900/1800   
inside contain frequency GSM 850/900/1800/1900Mhz (can 
be customized) 
Communication 
protocol 
UDP/TCP(can be customized) 
GPS module 
GPS JRC 595 with SIRFⅢ chipset 
GPS sensitivity 
-159dBm   
GPS frequency 
L1, 1575.42 MHz 
C/A coding 
1.023 MHz chip rate 
Channels 
20 channels examine track 
Position 
accuracy
 
10 meter, 2D RMS 
Speed 
 accuracy
 
0.1 meter/second 
Time 
accuracy
 
GPS time synchronization 
Default data 
WGS-84 
Recover 
Average 0.1 second 
Hot start
   
Average 1 second 
Warm boot 
Average 38 second 
Cold boot 
Average 42 second 
Height limit 
18,000 meter (60,000 feet) max 
Speed limit 
515 kilometer/second (1000 knots)max