Hemisphere GNSS Vector™ VS-i8 Inertial Navigation System (INS)
0.03° Heading Accuracy with Rugged IP68 Protection
Hemisphere GNSS Vector VS-i8 Inertial Navigation System combines multi-frequency GNSS and Honeywell IMU technology for superior performance. With 0.03° heading accuracy and 0.015° pitch/roll accuracy, it’s ideal for demanding applications like marine, UAV, and mobile mapping. VS-i8 supports GPS, GLONASS, BeiDou, Galileo, QZSS, and Atlas L-Band corrections, housed in a rugged IP68 enclosure for reliability in harsh environments.
Vector™ VS-i8 Inertial Navigation System Technical Specifications
GNSS Receiver Specifications | |||||
Receiver Type: | INS with Multi-Frequency GPS, GLONASS, BeiDou, Galileo, QZSS, NavIC (IRNSS), and Atlas L-band | ||||
Signals Received: | GPS: L1CA/L1P/L1C/L2P/L2C/L5 GLONASS: G1/G2/G3, P1/P2 BeiDou: B1i/B2i/B3i/B1C/B2a/B2b/ AceBOC GALILEO: E1BC/E5a/E5b/E6BC/ AltBOC QZSS: L1CA/L2C/L5/L1C/L6 NavIC (IRNSS): L5 Atlas | ||||
Channels: | 1,100+ | ||||
GPS Sensitivity: | -142 dBm | ||||
SBAS Tracking: | 3-channel, parallel tracking | ||||
Atlas L-band Channels: | Dual-Channel | ||||
Atlas Satellite Selection: | Manual and Automatic | ||||
GNSS Outage Performance | |||||
Outage Duration | Mode | Position Accuracy (RMS) Horizontal/Vertical | Velocity Accuracy (RMS) Horizontal/Vertical | Heading | Pitch & Roll |
0 Seconds | SBAS | <0.30 m/<0.60 m | <0.015 m/s, <0.01 m/s | <0.03° | 0.015° |
0 Seconds | RTK | <0.01 m/<0.025 m | <0.015 m/s, <0.01 m/s | <0.03° | 0.015° |
10 Seconds | RTK | 0.10 m/0.10 m | <0.04 m/s, <0.01 m/s | 0.06° | 0.015° |
30 Seconds | RTK | 1.0 m/0.30m | <0.06 m/s, <0.02 m/s | 0.07° | 0.015° |
60 Seconds | RTK | 3.5m/0.70m | <0.15 m/s, <0.03 m/s | 0.08° | 0.015° |
Communications | |||||
Ports: | 2x Power / Data | ||||
Interface Levels: | 2x RS-422, 1x RS-232, 5V CMOS, USB, Ethernet, CAN ISO 11898-2 | ||||
Correction I/O Protocol: | NTRIP Client, Hemisphere GNSS proprietary ROX format, RTCM v2.3, RTCM v3.2, CMR2, CMR+2 | ||||
Output Rate: | GNSS 10 Hz Standard / Optional 20 Hz, INS up to 100 Hz Standard | ||||
Timing & Event I/O: | 2x Event In, Direct Quadrature Encoder Input, 2x PPS | ||||
Sensor Input, Optional:: | Odometer (DMI) | ||||
Environmental, Mechanical & Electrical | |||||
Supply Voltage: | 9-36 V DC | ||||
Power Consumption: | 7.5 W nominal | ||||
Dimensions: | 9.0 L x 6.0 W x 6.0 H (cm) 3.5 L x 2.4 W x 2.4 H (in) | ||||
Weight | <0.5 kg | ||||
Operating Temperature: | -40°C to +71°C | ||||
Antenna Voltage: | 5 V DC maximum |
Why Choose the Vector™ VS-i8 Inertial Navigation System?
Athena GNSS engine-providing best-in-class RTK performance
Extremely accurate dual-antenna heading • Atlas® L-band capable
Non-ITAR controlled
0.03° heading, 0.015° pitch and roll accuracy on a 2m baseline
Rugged IP68 enclosure
Onboard data logging
SDK, ROS drivers available
What Is the Vector™ VS-i8 Inertial Navigation System Used For?
Typical applications of the Vector™ VS-i8 Inertial Navigation System include:
Autonomous vehicle localization and sensor fusion
UAV, drone and eVTOL navigation and photogrammetry
Mobile mapping and land surveying, including GNSS-denied environments
Marine and hydrographic survey with motion compensation
Robotics and machine control requiring precise position, roll, pitch and heading
What’s in the Package?
Only VS-i8 Receiver is included with the package.
Antennas and RF cables must be ordered separately.
INS receiver cables must be ordered separately.
Antenna Options:
A42 Antenna (mFreq, mGNSS, L-Band).
A45 Antenna (mFreq, mGNSS, L-Band).
Co-Axial Antenna Cables Options:
30m Low-loss TNC-TNC Antenna Cable.
1m TNC-TNC Antenna Cable.
10m TNC-TNC Antenna Cable.
5m TNC-TNC Antenna Cable.
0.6m SMA(M)-TNC(F) Antenna Cable Adapter.
VS-i8 Cables Options:
Cable IO1, Power Data, Terminated .
Cable IO2, Power Data, Terminated.
Cable IO1, Power Data, Unterminated.
Cable IO2, Power Data, Unterminated.
Optional Firmware:
20 Hz activation.
Frequently Asked Questions
What is the Vector™ VS-i8 Inertial Navigation System?
Hemisphere GNSS Vector VS-i8 Inertial Navigation System combines multi-frequency GNSS and Honeywell IMU technology for superior performance. With 0.03° heading accuracy and 0.015° pitch/roll accuracy, it’s ideal for demanding applications like marine, UAV, and mobile mapping.
What is included with the Vector™ VS-i8 Inertial Navigation System?
The standard package includes: A42 Antenna (mFreq, mGNSS, L-Band); A45 Antenna (mFreq, mGNSS, L-Band). See above for optional extras where available.
Why use a GNSS-aided INS like the Vector™ VS-i8 Inertial Navigation System instead of GNSS alone?
A GNSS-aided INS fuses inertial measurements with satellite positioning, so the Vector™ VS-i8 Inertial Navigation System keeps delivering accurate position, roll, pitch and heading during GNSS outages — in tunnels, urban canyons or under jamming — where a standalone GNSS receiver would fail.
Where is the Vector™ VS-i8 Inertial Navigation System available?
The Vector™ VS-i8 Inertial Navigation System is available through Leo Drive in the following region: Turkey. For other regions, please contact Leo Drive.
How can I get the datasheet and technical documents for the Vector™ VS-i8 Inertial Navigation System?
The datasheet, user manual and other technical documents for the Vector™ VS-i8 Inertial Navigation System are available on the manufacturer’s website. You can also contact Leo Drive for documentation and integration support.
Explore More at Leo Drive
The Vector™ VS-i8 Inertial Navigation System is part of the Inertial Navigation Systems range at Leo Drive. Browse all autonomous vehicle sensors and components, or talk to our engineering team about integration in your project.

