i90
IMU-RTK GNSS
RECEIVER
SURVEYING &
ENGINEERING
HIGH-PERFORMANCE
IMU RTK GNSS
RECEIVER
RECEIVER
The i90 GNSS receiver integrates professional IMU-RTK technology to provide a robust and
accurate positioning, in any circumstances. It combines state-of-the-art GNSS RTK engine, a
calibration-free high-end IMU sensor and advanced GNSS tracking capabilities to dramatically
increase RTK availability and reliability.
The i90 automatic pole-tilt compensation boosts survey and stakeout speed by up to 30%.
Construction and land surveying projects are achieved with high productivity and reliability
pushing the boundaries of conventional GNSS RTK survey.
FULL GNSS POSITIONING EXTENDED CONNECTIVITY
Combining GPS, Glonass, Galileo and BeiDou Boost survey and stakeout speed by up to 30%.
constellations. The i90 GNSS build-in IMU ensures
The embedded 624-channel GNSS technology interference-free and automatic pole-tilt
takes benefit from all GPS, GLONASS, Galileo compensation in real-time. 3 cm accuracy is
and BeiDou signals and provides robust RTK achieved with pole-tilt range of up to 30 degrees.
position availability and reliability.
HASSLE-FREE
IMU-RTK SURVEYING
Dramatically increase RTK availability.
No complicated calibration process, rotation,
leveling or accessories are necessary with the i90.
Simply rock the range pole a few times to initialize
the i90 internal IMU module and enable GNSS
RTK survey in difficult field environment.
EXTENDED CONNECTIVITY
Instant NFC pairing of your controller.
The i90 GNSS combines high-end connectivity
modules: Bluetooth, Wi-Fi, NFC, 4G, and UHF
radio modem. The 4G modem brings ease of use
when working within RTK networks. The internal
UHF radio modem allows long-distance
base-to-rover surveying up to 5 km.
CHCNAV · i90
IMU-RTK
TECHNOLOGY
ENABLE GNSS RTK
ANYTIME, ANYWHERE
CHCNAV · i90
SPECIFICATIONS
(1)
GNSS Performance Communication
Channels 624 channels Integrated 4G modem
GPS L1 C/A, L2C, L2P, L5 LTE (FDD):B1,B2,B3,B4,B5,B7,B8,B20
GLONASS L1, L2, L3 Network modem DC-HSPA+/HSPA+/HSPA/UMTS:
B1, B2, B5, B8
Galileo E1, E5a, E5b, E6
EDGE/GPRS/GSM
BeiDou B1, B2, B3 850/900/1800/1900MHz
SBAS L1 L5 Wi-Fi 802.11 b/g/n, access point mode
QZSS L1, L2, L5, L6 Bluetooth ® v4.1
1 x 7-pin LEMOport (external power, RS -
GNSS Accuracies (2)
232)
Horizontal: 8 mm + 0.5 ppm RMS 1 x USB Type-C port (data download,
Ports
Real time Vertical: 15 mm + 0.5 ppm RMS firmware update)
kinematics (RTK) Initializationtime: < 10 s 1 x UHF antenna port (TNC female)
Initializationreliability: > 99.9%
Standard Internal Rx/Tx: 410 - 470 MHz
Post -processing Horizontal: 2.5 mm + 1 ppm RMS
Transmit Power: 0.5 W to 2 W
kinematics (PPK) Vertical: 5 mm + 1 ppm RMS UHF radio Protocol: CHC,Transparent, TT450, 3AS
Post - processing Horizontal: 2.5 mm + 0.1 ppm RMS Link rate: 9600 bps to 19200 bps
static Vertical: 3.5 mm + 0.4 ppm RMS Range: Typical 3 km to 5 km
Code differential Horizontal: 0.25 m RMS RTCM2.x, RTCM3.x, CMRinput / output
Horizontal: 1.5 m RMS HCN,HRC,RINEX 2.11, 3.02
Autonomous Data formats
Vertical: 3 m RMS NMEA0183 output
NTRIP Client, NTRIP Caster
Positioning rate Up to 10 Hz
Data storage 32 GB internal memory
Cold start: < 45 s
Time to first fix
(3)
Hot start: < 10 s Electrical
Signal re-acquisition: < 1 s Power consumption 5 W (depending on user settings)
Additional horizontal pole-tilt uncertainty Li -ion battery capacity 2 x 3400 mAh, 7.4 V
RTK tilt -compensated
typically less than 10 mm + 0.7 mm/° tilt UHF receive/transmit (0.5 W): 6 h to 12 h
Operating time on
Hardware (4)
Cellular receive only: up to 12 h
internal battery
159 mm x 150 mm x 110 mm Static: up to 12 h
Size (LxWxH) External power input 9 V DC to 28 V DC
(6.3 in × 5.9 in × 4.3 in)
Weight 1.26 kg (2.77 lb)
Operating: -40°C to +65°C
*All specifications are subject to change without notice.
(-40°F to +149°F)
Environment (1) Compliant, but subject to availability of BDS ICD and Galileo commercial service definition. BDS B3 and Galileo E6
will be provided through future firmware upgrade. (2) Accuracy and reliability are determined under open sky, free of
Storage: -40°C to +85°C multipaths, optimal GNSS geometry and atmospheric condition. Performances assume minimum of 5 satellites, follow
(-40°F to +185°F) up of recommended general GPS practices. (3) Typical observed values. (4) Battery life is subject to operating
temperature.
Humidity 100% condensation
IP67 waterproof and dustproof, protected
Ingress protection
from temporary immersionto depth of 1 m
Shock Survive a 2-meter pole drop
Calibration-free IMUfor pole-tilt
compensation. Immuneto magnetic
Tilt sensor
disturbances.
EBubble leveling
4 LED indicates
Front panel
1.46'' OLEDDisplay
Certifications
FCC Part 15 (class B Device), FCC Part 22, 24, 90; CE Mark;
NGS Antenna Calibration; MIL STD 810G,Method 514.7
© 2020 Shanghai Huace Navigation Technology Ltd. All rights reserved. The CHC and CHC logo are trademarks of
Shanghai Huace Navigation Technology Limited. All other trademarks are the property of their respective owners.
Revision May 2020.
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