|   			 allocation   			 |   			  			 Detailed indicators   			 |   		
  		  			|   			 Measurement performance   			 |   			  			 Signal tracking   			 |   			  			1598 channels  			 BDS-2:B1I,B2I,B3I   			BDS-3:B1I,B3I,B1C,B2a,B2b   			GPS: L1C/A,L2P,L2C,L5,L1C*   			GLONASS: G1,G2,G3*   			Galileo:E1,E5b,E5a,E5 AltBoc*,E6c*   			SBAS:L1C/A,L5*   			QZSS:L1 ,L2C, L5   			IRNSS:L5*   			   			 |   		
  		  			|   			 GNSS characteristics   			 |   			  			 Positioning output frequency 1Hz~20Hz   			 |   		
  		  			|   			 The initialization time is less than 10 seconds   			 |   		
  		  			|   			 Initialization reliability>99.9%   			 |   		
  		  			|   			 All constellation reception technology, capable of supporting GNSS constellation signals from all current and planned sources   			 |   		
  		  			|   			 Reliable carrier tracking technology improves carrier accuracy and provides high-quality raw observation data   			 |   		
  		  			|   			 Intelligent dynamic sensitivity positioning technology, adaptable to various environmental changes and harsh, long-distance   			positioning environments   			 |   		
  		  			|   			 positioning accuracy   			 |   			  			 Code differential GNSS positioning   			 |   			  			 level:0.25 m+1 ppm RMS   			 |   		
  		  			|   			 Vertical:0.50 m + 1 ppm RMS   			 |   		
  		  			|   			 SBAS differential positioning accuracy: typical   			 |   		
  		  			|   			 Static measurement accuracy   			 |   			  			Plane: ± (2.5mm+0.5 × 10-6D)  			 (D is the measured baseline length)   			   			 |   		
  		  			  			Elevation: ± (5mm+0.5 × 10-6D)  			 (D is the measured baseline length)   			   			 |   		
  		  			|   			 RTK measurement accuracy   			 |   			  			Plane: ± (8mm+1 × 10-6D)  			 (D is the measured baseline length)   			   			 |   		
  		  			  			Elevation: ± (15mm+1 × 10-6D)  			 (D is the measured baseline length)   			   			 |   		
  		  			|   			 ins   			 |   			  			 Inertial tilt measurement   			 |   			  			 Built in IMU inertial measurement sensor, supporting inertial tilt measurement function, automatically correcting coordinates   			based on the tilt direction and angle of the center pole.   			 |   		
  		  			|   			 IMU update rate   			 |   			  			 200HZ   			 |   		
  		  			|   			 Tilt angle   			 |   			  			 0°~60°   			 |   		
  		  			|   			 Tilt compensation accuracy   			 |   			  			 1.8-meter pole; RMS: 8 mm+0.7 mm/° tilt (tilt is the tilt angle)   			 |   		
  		  			|   			 Operating system/ User interaction   			 |   			  			 operating system   			 |   			  			 Linux   			 |   		
  		  			|   			 Keys   			 |   			  			 Power button   			 |   		
  		  			|   			 Indicator light   			 |   			  			 3 indicator lights+battery display light (at the bottom of the instrument): data light, Bluetooth light, power light (button   			position)   			 |   		
  		  			|   			 Web interaction   			 |   			  			 Built in Web UI management backend, supporting Wi Fi and USB mode access to the receiver's built-in Web UI management page,   			real-time monitoring of host status, and free configuration of hosts.   			 |   		
  		  			|   			 speech   			 |   			  			 IVoice intelligent voice technology, intelligent status reporting, voice operation prompts; Chinese, English, Korean, Russian,   			Portuguese, Spanish and Turkish are supported by default;   			 |   		
  		  			|   			 hardware   			 |   			  			 size   			 |   			  			 131mm*80mm   			 |   		
  		  			|   			 weight   			 |   			  			 800g   			 |   		
  		  			|   			 material quality   			 |   			  			 magnesium alloy   			 |   		
  		  			|   			 temperature   			 |   			  			 Working temperature: -45 ° C to+75 ° C   			 |   		
  		  			|   			 Storage temperature: -55 ° C to+85 ° C   			 |   		
  		  			|   			 humidity   			 |   			  			 Anti 100% condensation   			 |   		
  		  			|   			 Protection level   			 |   			  			 IP68   			 |   		
  		  			|   			 Shockproof   			 |   			  			 Resistance to 2 meters of pole drop   			 |   		
  		  			|   			 electrical   			 |   			  			 source   			 |   			  			 6-18V wide voltage DC design with overvoltage protection   			 |   		
  		  			|   			 battery   			 |   			  			 Built in 6800mAh high-performance lithium battery 7.4V; Homework meets 18 hours of battery life   			 |   		
  		  			|   			 Realistic layout   			 |   			  			 pixel   			 |   			  			 2 million   			 |   		
  		  			|   			 Field of view angle   			 |   			  			 75°   			 |   		
  		  			|   			 communication   			 |   			  			 I/O ports   			 |   			  			 TYPE-C interface   			 |   		
  		  			|   			 Radio antenna interface   			 |   		
  		  			|   			 Realistic layout   			 |   			  			 Built in receiver station   			 |   		
  		  			|   			 Working frequency: 410-470MHz   			 |   		
  		  			|   			 Communication protocol: Farlink   			 |   		
  		  			|   			 Bluetooth   			 |   			  			 BT4.2 (BR/EDR+BLE) Bluetooth standard   			 |   		
  		  			|   			 NFC wireless communication   			 |   			  			 Using NFC wireless communication technology, the manual can automatically pair with the host by touching it (the manual also needs   			to be equipped with NFC wireless communication module)   			 |   		
  		  			|   			 WIFI   			 |   			  			 standard   			 |   			  			 802.11b/g/n standard   			 |   		
  		  			|   			 WIFI hotspot   			 |   			  			 Equipped with WIFI hotspot function, any intelligent terminal can access the receiver, providing rich personalized customization   			of receiver functions;   			 |   		
  		  			|   			 Industrial notebooks, intelligent terminals, and other data collectors can transmit data to the receiver via WIFI   			 |   		
  		  			|   			 WIFI data link   			 |   			  			 The receiver can be connected to WIFI for differential data broadcasting or reception   			 |   		
  		  			|   			 Data storage/transmission   			 |   			  			 data storage   			 |   			  			 Built in 4GB solid-state storage, rich sampling intervals, and support for raw observation data collection up to 20Hz   			 |   		
  		  			|   			 data transmission   			 |   			  			 Supports data transfer such as USB, FTP download, HTTP, etc   			 |   		
  		  			|   			 data format   			 |   			  			 Static data formats: various formats such as Southern STH, Rinex2.01, and Rinex3.02   			 |   		
  		  			|   			 Differential data format: RTCM3.0, RTCM3.2 input and output   			 |   		
  		  			|   			 GPS output data format: NMEA 0183, PJK plane coordinates, binary code   			 |   		
  		  			|   			 Network mode support: VRS, FKP, MAC, supports NTRIP protocol   			 |   		
  		  			|   			 sensor   			 |   			  			 temperature sensor   			 |   			  			 Built in temperature sensor, using intelligent variable frequency temperature control technology, real-time monitoring and   			adjustment of host temperature   			 |