说明：  GPS 定位 校时 G591B G591模块产品定义书 1.GPS芯片 :基于 JRC第九代单芯片SH319方案 2.卫星信道 :88通道, (66个捕获通道,22个追踪通道) 3.频率 :L1, 1.57542 GHz, C/A 码 4.启动时间 :<1.5s(热启),<34s(温启),<35s(冷启) 5.功耗 :38mW typical@tracking 6.GPS精度 :<2.5m Position Accuracy； 0.05m/sec Velocity Accuracy 7.信号灵敏度:-164dBm(Tracking) 8.重捕获 :<1s 9.I/O协议 :NMEA 0183 Format v3.01 and backward compliance 10.波特率 :2.4--115.2Kbps 11.配接天线 :有源天线 12.接口 :36pin SMD封装EMI shielded 13.尺寸 :15.9*13.1*2.5 14.应用范围 :PND,追踪器，车载监控等
(G591B G591 GPS positioning when the school books 1.GPS chip module product definition: JRC ninth on a single chip SH319 Option 2. Satellite Channels: 88 channels (channels 66 to capture, track 22 channels) 3. Frequency: L1, 1.57542 GHz, C/A code 4. Start Time: < 1.5s (hot start), < 34s (warm start), < 35s (cold start) 5. power consumption: 38mW typical @ tracking 6.GPS Accuracy: < 2.5m Position Accuracy 0.05m/sec Velocity Accuracy 7. signal sensitivity:-164dBm (Tracking) 8. re-capture: < 1s 9.I/O Protocol: NMEA 0183 Format v3.01 and backward compliance 10. baud rate :2.4- 115.2Kbps 11. matching Antenna: Active antenna 12. Interface: 36pin SMD package EMI shielded 13. Size: 15.9* 13.1* 2.5 14. Applications: PND, Tracker, vehicle monitoring)