N72 GNSS Sensor
Product Information

N72 GNSS Sensor

The CHC N72 GNSS sensor provides advanced multi-industry solutions to various demanding applications such as surveying, CORS, mining monitoring, geologic hazard monitoring, water conservancy monitoring, machine control, vehicle dispatching, etc. 
Easy-to-use, compact and rugged, designed for advanced monitoring performances, the N72 GNSS sensor makes field work more comfort for the surveyors.  
● 436 channels core GNSS module, including GPS, GLONASS, Galileo, Beidou and SBAS tracking
● High-capacity integrated battery, up to 15 hours power supply as UPS
● 32 GB mass memory for 5 years of 15s static data; up to 1 TB external memory
● 8 threads of independent simultaneous data logging to meet different data purposes.
● Circulating storage to keep the data up-to-data
● FIP push and remote download to keep data always available
● Buttons for quick configuration and LCD for direct display
● Wi-Fi as well as Bluetooth, LAN, serial ports and USB for easy acesses
Product Features
GNSS Characteristics
436 channels with simultaneously tracked satellite signals GPS: L1C/A, L2C, L2E, L5
  GLONASS: L1C/A, L1P, L2C/A (GLONASS M only), L2P
  Galileo: E1, E5A, E5B 
  Beidou: B1, B2
 Pseudo-range measurement with high-precision multi-correlator  
Very low noise carrier phase measurement with < 1mm presision in 1Hz bandwidth  


Performance Specifications (1)
Real Time Kinematics (RTK) Horizontal: 8mm+1ppm RMS
  Vertical: 15mm+1ppm RMS
  Initialization time: typically < 8 s
  Initialization reliability: typically > 99.9%
Post Processing Static Horizontal: 2.5mm + 0.5ppm RMS
  Vertical: 5mm + 0.5ppm RMS
Post Processing Static (Long Observation) Horizontal: 3mm + 0.1ppm RMS
  Vertical: 3.5mm + 0.4ppm RMS


1 x LAN port Support links to 10BaseT/100BaseT auto-negotiate networks
  HTTP,  TCP/IP, UDP, FTP, NTRIP Caster, NTRIP Server, NTRIP Client
  Simultaneously transmits multiple data stream;
Support proxy server and route table
DB9 port, Lemo (10-pin) port  
1 x GNSS antenna port
1 x USB  port  
Protocols Correction formats: CMR, CMR+, SCMRx, RTCM 2.3, RTCM 3.0, RTCM 3.1, RTCM 3.2, RTD
    Observables: RT17, RT27, BINEX, RTCM 3.x, RINEX2.X,RINEX3.X
  Position/Status I/O: NMEA-0183 V2.30
Internal data logging storage capacity 32 GB, frequency up to 50 Hz  
External storage up to 1 TB  
Support RTK via GPRS/EDGE/3G/4G  
Size (LxWxH) 265 x 143 x 68 mm (7.9 x 6.0 x 2.5 in)
Weight 2.1 kg (74 oz)
Operating Temperature -40 °C to +65 °C (-40°F to 149°F)
Storage Temperature -45 °C to +80°C (-49°F to 176°F)
Humidity 100% condensation
Waterproof and Dustproof IP68, protected from immersion to depth of 1 meter for 30 minutes
Shock Survives a 1-meter drop on to concrete
Vibration MIL-STD-810G standard


Power consumption 3.5 W nominal, dependent on user settings
External power input
Internal battery capacity
9-18 VDC
7800mAh, 7.4V
15 hours(dependent on user settings)


User Interface
Front panel display 1 x LED power indicator
  7 x Key-press
1 x LCD display
 Web User Interface  


Antenna option
Recommended antenna products  CHC A220GR GNSS Geodetic Antenna
   CHC C220GR GNSS Choke Ring Antenna