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Product Details:

Place of Origin: China
Brand Name: CHC
Model Number: X91+ GNSS

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Minimum Order Quantity: 1
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Detailed Product Description


Easy-to-use, efficient and intuitive work flow, designed for advanced network RTK survey, compact and rugged, the X91+ GNSS is the perfect choice for demanding survey applications.

By combining decades of positioning and surveying know-how, the X91+ GNSS is one of the most powerful GNSS RTK solution, with no compromise with quality but at a price point that every surveyors can afford.

The X91+ GNSS RTCM compliance with major GPS brands allow trouble free integration into an existing pool of survey instrument.

▪  220-channel embedded leading GNSS core module GPS/GLONASS/Galileo/BeiDou
▪  Built-in GPRS modem and UHF data link 
▪  Seamless interoperability with major GPS/GNSS manufacturers 
▪  Small, lightweight and rugged design for demanding environment field work  


GNSS Characteristics
220 channels GPS: L1C/A,L1C,L2C, L2E, L5
  GLONASS: L1C/A, L1P, L2C/A, L2P, L3


  Galileo: E1, E5A, E5B (test)
  Beidou: B1, B2(optional)


Advanced multipath mitigation  


Low noise carrier phase measurement  


Performance Specifications (1)
Real Time Kinematics (RTK) Horizontal: 8mm+1ppm
  Vertical: 15mm+1ppm RMS
  Initialization time: typically<10s
  Initialization reliability: typically >99.9%
Post Processing Static Horizontal: 3mm+0.5ppm RMS
  Vertical: 5mm+0.5ppm RMS


  Baseline Length: ≤300km


1 RS232 serial port  
1 high-speed USB  
Integrated GSM/GPRS modem  
Integrated Bluetooth ® class 2  
CHC Radio modem internal Rx 430-450 / 450-470 Mhz
 Optional radio modem (2) Internal Rx/Tx:403-473 Mhz
  External Tx DL5: 1W-20W adjustable


Protocols RTCM2.1, RTCM2.3, RTCM3.0, CMR, CMR+ input and output
  NMEA0183 outputs  


  RINEX and HCN outputs for GNSS raw data
 Data Storage 4 GB internal memory
  GPS device mounts as a USB external hard drive


Size (H×D) 80×180 mm (3.1×7.1 in)
Weight 1.35Kg with battery (48 oz)
Working Temperature -40 °C − +65°C (-40 °F − 149°F)
Storage Temperature -40 °C − +75°C (-40 °F − 167°F)
Humidity 100% condensation
Dustproof IP67
Waterproof Protected from temporary immersion to depth of 1 meter floats.
Shock Survives a 2−meter drop on to concrete


Typical power consumption 2.6 W
Battery capacity 2200 mAh
Operating times on internal battery typical 5 hoursin RTK mode
External power input 9-18 VDC

(1) Accuracy, TTFF and reliability specifications may be affected by multi path, satellite geometry and atmospheric conditions. Performances assume minimum of 5 satellites and follow up of recommended survey practices.  (2) UHF type approvals are country specific - Specifications are subject to change without notice.

Contact Details
Nanjing Hanzhong mapping equipment Co.,Ltd.

Contact Person: Ms. zhou

Tel: 86--15951736168

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