Galaxy System

• Channels: 1408 channels 
  
• GPS: L1C/A, L2P, L5 
  
• GLONASS: G1, G2
  
• Galileo: E1, E5a, E5b, E6*
  
• BDS: B1I, B2I, B3I, B1C, B2a, B2b*
  
• QZSS:  L1, L2C, L5
  
• SBAS: L1C/A

Precision and Reliability

• Signal Reacquisition: ≤1s
• Time to First Fix: Cold start≤30s; Hot start≤5s
  
• RTK Initialization Time: <5s
  
• Initialization Data Reliability: ＜99.9%
  
• Data Update Rate: Measurement & Positioning: 
• 1Hz, 2Hz, 5Hz, 10Hz, 15Hz, 20Hz
  
• Single Point Solution Accuracy (RMS): H≤1.5 m, V≤2.5 m
  
• DGPS (RMS): H≤0.4 m, V≤0.8 m
  
• RTK (RMS): H≤0.8 cm+1 ppm, V≤1.5 cm+1 ppm
  
• Time Accuracy (RMS): 20 ns 
  
• Speed Accuracy (RMS): 0.03 m/s
  
• Laser Tilt Measurement: 3D error at 3m distance measurement ≤3cm
• (tilt angle ≤30°) (V4E Pro)

Data Types 

• Differential Data: RTCM2.3, RTCM 3.x, CMR 
  
• Data Format: NMEA-0183

Communication

• BT 4.0: Dual-mode
• Working distance: 5m
• Wi-Fi (Base Station Mode): 2.4G
• Working distance: 300m (base station protocol) 

Physical Characteristics

• Shell Material: PC+ABS
  
• Buttons: On/Off
  
• Operating Temperature: -20℃ to 60℃ 
  
• IP Rating: IP67 
• Dimensions: 182x53x53 mm 
  
• Mounting Interface: 1/4 thread internal interface
  
• Indicator Lights: Fixed disassembly & charging
  
• Charging Temperature: 0℃ to 45℃