4G OBD
OBD（On-Board Diagnostic）is a system for monitoring the working state of the car and report anomaly. At the beginning, it was used for monitoring the performance of engine to reduce emission. With the development of technology, nowadays OBD can report real-time data and standardized fault code, and it has made the car fault diagnosis repair methods totally changed.
Parameter：
Working Woltage：9V~16V;
Standby Current：<8mA;
OBD protocol：SAE J1850 PWM;
SAE J1850 VPW;
ISO 9141-2;
ISO 14230-4;
ISO 15765-4;
SAE J1939;
ISO 15765;
ISO 11898 (raw CAN);
GMLAN Single Wire CAN (GMW3089)Ford Medium Speed CAN (MS CAN);
Memory：8GB EMMC+8Gb LPDDR3;
Chipset：QualcommSM8909;
CPU:ARM Cortex-A7, quad-core, up to 1.1 GHz512KB L2 cache;
Operating System: Android 6.0;
Positioning method：GPS, GLONASS;
GNSS：Frequency:
GPS：1575.42±1.023MHz
Glonass:1597.5-1605.8MHz
Sensitivity: -158dBm
Accuracy: 6m CEP;
Time to first fix：Cold start: 32s(typ)、Hot start :2s(typ);
WIFI：Frequency:2.40-2.482GHz、5.180-5.825 GHz、WLAN Standard:802.11a/b/g/n;
Bluethooth：BT2.1+EDR/3.0/4.2LE、Frequency:2.40-2.480GHz;
Cellular：Frequency:
FDD LTE: B2/B4/B5/B7/B12/B13/B25/B26
WCDMA: B1/B2/B4/B5/B8
GSM: 850/1900MHz
DATA:
LTE-FDD :Max 150Mbps (DL) Max 50Mbps (UL)
LTE-TDD:Max 130Mbps (DL)Max35Mbps (UL)
HSPA+ :Max 42Mbps(DL) Max5.76Mbps(UL)
WCDMA :Max 384Kbps(DL) Max 384Kbps(UL)
EDGE:Max 236.8Kbps(DL) Max 236.8Kbps(UL)
GPRS :Max 85.6Kbps(DL) Max 85.6Kbps(UL)
Sensor(option)：3-axis accelerometer and gyroscope;
Li-ion Battery：3.7V,200mAh(option);
Dimensions(L x W x H)：53.9mmx48mmx25mm;
