Xiamen, Zhangzhou, Quanzhou, Longyan Survey GPS Shanghai Hua measured GPS-X91GNSSGNSS systematically ..

Xiamen, Zhangzhou, Quanzhou, Longyan Survey GPS Shanghai Hua measured GPS-X91 GNSS GNSS system region's total generation Products X91 Technical parameters: 1, GNSS receiver characteristics: ■ 54-channel receiver, including: a 14-channel L1 + 2 channel SBAS; 14 channels L2 P (Y) code or L2C code; 24 channel GLONASS L1 / L2 L5 channel reservation, scalable tracking Galileo system; ■ PAC multipath reduction technology ■ Vision-related technology ■ Quick reacquisition ■ output update rate 5HZ (customizable 20HZ ) ■ long-range RTK, RTK maximum effective distance 70KM ■ feed point four zero phase center of the right-handed polarization multi-satellite antenna ■ completely opposite code and phase measurements 2, the measurement accuracy static measurement accuracy: Horizontal Accuracy: ± 2.5 + 1ppm RMS elevation Accuracy: ± 5 + 1ppm RMS fast static measurement accuracy: flat precision: ± 5 + 1ppm RMS height accuracy: ± 10 + 1ppm RMS dynamic real-time RTK accuracy: Horizontal Accuracy: ± 10 + 1ppm RMS height accuracy: ± 20 + 1ppm RMS single Positioning accuracy: 1 m (CEP) code differential positioning accuracy: 0.4m (CEP) 3, UHF radio: a radio built the original PDL, and imported brands seamlessly 220-240 / 410-470MHZ country-specific data transmission band, compatible with mainstream Brand 19200 bps wireless transmission rate base station output power 1-28W, can be adjusted 4, GPRS network communication built-in import GPRS / CDMA data communication module 900 / 1800MHZ band, automatic landing 24 hours free web server supports 5, I / O port 1 RS232 serial ports 1 USB data download port a Bluetooth wireless communication ports 2 external DC power port a GSM / CDMA SIM card slot 6 with the physical properties of built-in 128M memory volume (W × H): 18cm × 8cm Weight: 1.25kg (including battery, battery weight 0.1kg) 7. built-in memory to store and record: 64M (optional 128 M, 256 M) raw data recording rate: 1Hz, up to 20 Hz storage formats: HCN \ DAT \ RINEX 8. Data Format RTCM2.3 RTCM3.0 CMR, CMR + RTCA NMEA0183 NIRIP protocol 9, the electrical parameters of the host Power: 2.5W single cell capacity: 2200mA battery voltage: 7.2V Battery Life: 1000 times charge-discharge process of the battery operating time: RTK: 10 小时 Static: 16 hours can be an external DC, internal and external power supply automatically switches external power supply: 10-18VDC 10, environmental parameters: temperature: -45 ℃ -65 ℃ Storage temperature: -50 ℃ -70 ℃ Humidity: 100% free condensed water and dust: to meet IPX7 standards, submerged one meter, can float shock and vibration: Hard to withstand 2 m drop