Pocket Design Surveying Instrument Rover CHCNAV i73 GNSS GPS RTK Receiver

Short Description:

The i73 GNSS is an extremely compact, powerful and versatile GNSS receiver. Powered by CHCNAV iStar technology that optimally tracks satellite signals from all constellations, the i73+ GNSS achieves survey-grade, fixed RTK centimeter positioning within 30 seconds after power-up. In addition, its automatic pole tilt compensation increases the efficiency of point measurements by up to 20% and stakeout surveys by up to 30%. Easy to carry in one hand, the i73 GNSS is an effective, lightweight GNSS solution that adapts to various job sites configurations, making intensive field surveys more convenient and less tiring for the operator.

Product Detail

Product Tags

chcnav i73 banner1

Full GNSS with 1408 Channels Advanced Tracking

The integrated advanced 1408-channel GNSS technology takes advantage of GPS, Glonass, Galileo and BeiDou, in particular the latest BeiDou III signal, and provides robust data quality at all times. The i73+ extends GNSS surveying capabilities while maintaining centimeter-level survey-grade accuracy. GNSS surveying has never been more efficient.

The Power of GNSS +IMU RTK Technology

Even in a complex electromagnetic environment, the i73 initializes its IMU in 3 seconds, with no need for repeated re-initialization. It delivers 3 cm accuracy up to a 30-degree pole tilt, increasing the efficiency of point measurement by 20% and stakeout by 30%. The i73 GNSS eliminates the challenge of measuring hidden or dangerous points while making the work of survey crews safer and more efficient. GNSS surveys are made easier by removing the need for the operator to focus on the perfect leveling of its surveying pole.

The Ultimate Pocket GNSS IMU Receiver

The i73 benefits from the ultra-compact magnesium alloy design of the i73 series, making it one of the lightest receivers in its class, weighing only 0.73 kg, including battery. The i73 is more than 40% lighter than a traditional GNSS receiver, making it more convenient to carry, use and operate without fatigue. The i73 GNSS is packed with technology, fits in your hands, and offers maximum productivity for GNSS surveys.

HCE600 Data Collector
Featuring Android 10 operating system.
A sleek, lightweight, premium design.
5.5-inch DragonTrail™ display.
With Bluetooth 5.0, dual-band 2.4G and 5G Wi-Fi, 4G modem.
Nano-SIM card, 32GB flash memory.
Ultra-rugged, IP67 and MIL-STD-810H standards.

LandStar8 Software
Easy to use and learn, with powerful features.
Simplified project and coordinated system management.
CAD base map rendering in seconds.
Cloud integration enables efficient collaboration from field to office.


GNSS Performance Channels 1408 channels
GPS L1, L2, L5
Galileo E1, E5a, E5b
BeiDou B1, B2, B3
QZSS L1, L2, L5
GNSS Accuracies Real time Horizontal: 8 mm + 1 ppm RMS
kinematics (RTK) Vertical: 15 mm + 1 ppm RMS
Initialization time: < 10 s
Initialization reliability: > 99.9%
Post -processing Horizontal: 3 mm + 1 ppm RMS
kinematics (PPK) Vertical: 5 mm + 1 ppm RMS
Post - processing static Horizontal: 3 mm + 0.5 ppm RMS
Vertical: 5 mm + 0.5 ppm RMS
Code differential Horizontal: 0.4 m RMS Vertical: 0.8 m RMS
Autonomous Horizontal:1.5 m RMS
Vertical: 3 m RMS
Positioning rate Up to 10 Hz
Coldstart: < 45 s
Time to first fix Hot start: < 10 s
Signal re-acquisition: < 1 s
RTK tilt - compensation Additional horizontal pole-tilt uncertainty
typically less than 10 mm +0.7 mm/°tilt
Hardware Size (L x W x H) Φ160.54 mm*103 mm
Weight 1.73kg
Environment Operating:-40°C to +65°C (-40°F to +149°F)
Storage: -40°C to +75°C (-40°F to +167°F)
Humidity 100% condensation
Ingress protection IP67waterproof and dustproof, protected
from temporary immersionto depth of 1 m
Shock Survive a 2-meter pole drop
Tilt sensor E-Bubble leveling
Front panel 1 satellite light, 1 differential signal light, 1 static data acquisition light, 1 Wi-Fi indicator, 2 power lights
Communication Network modem Integrated4G modem
B1, B2, B5, B8
Wi-Fi 802.11 b/g/n, access point mode
Ports 1 x 7-pin LEMO port (external power, RS-
1 x USBType-C port (data download,
firmware update)
1 x UHFantenna port (TNCfemale)
UHFradio Standard InternalRx: 410 - 470 MHz
Protocol: CHC, Transparent, TT450,3AS
Link rate: 9600 bps to 19200 bps
RTCM2.x, RTCM3.x, CMR input / output
Data formats HCN, HRC, RINEX2.11, 3.02 NMEA0183 output
NTRIPClient, NTRIPCaster
Data storage 8 GB internal memory
Electrical Power consumption 4.2 W (depending on user settings)
Li-ion battery capacity Built-in non-removable battery 6,800 mAh
Operating time on UHFreceive/transmit (0.5 W): 6 h to 12 h
internal battery Cellularreceive only: up to 12 h
Static: up to 12 h
External power input 9V DC to 36 V DC

  • Previous:
  • Next:

  • Write your message here and send it to us