H220 GNSS OEM Board

Hemisphere Crescent Vector H220 GNSS OEM Board

The H220 GNSS OEM Board from Hemisphere GNSS has reached End of Life (EOL). Hemisphere GNSS recommends the Vega 34 GNSS Compass Board as a suitable replacement.



The Crescent Vector H220 GNSS OEM board is the next generation, single-frequency, high-performance GNSS heading, positioning, and attitude module available from Hemisphere GNSS.

The H220 provides integrators with an opportunity for developing sophisticated marine, navigation, and land applications in challenging, dynamic environments. The H220 uses Hemisphere’s advancements in Vector technology, advanced multipath mitigation techniques, and Hemispheres patented Multifunction Application.

H220 is capable of providing heading of 0.04° with a 5 meter antenna baseline and either RTK or SBAS positioning depending on your location requirements. With Atlas corrections, the H220 can obtain instant sub- meter accuracy worldwide while being more robust than SBAS even in SBAS regions.

Integrate the robust H220 GNSS OEM board into your applications to experience exceptional heading, positioning, and attitude performance in a compact size. Diversity and cost savings make it an ideal part of your solution for system integrators.


  • Extremely accurate heading with short baselines
  • Single Frequency GPS/GLONASS/BeiDou/Galileo/QZSS RTK capable
  • Integrated L-band for Atlas corrections
  • Excellent coasting performance
  • 10 cm RMS heave accuracy with RTK
  • Strong multipath mitigation and interference rejection
  • New multi-axis gyro and tilt sensor for reliable coverage during short GNSS outages

Technical Specifications

GNSS Sensor Specifications
Receiver Type:Single Frequency GPS, GLONASS, BeiDou, Galileo, QZSS and Atlas
Signals Received:GPS L1CA/L1P
BeiDou B1
GNSS Sensitivity:-142 dBm
SBAS Tracking:2-channel, parallel tracking
Update Rate:10 Hz standard, 1 Hz, 20 Hz or 50 Hz optional (with activation)
Timing (1PPS) Accuracy:20 ns
Rate of Turn:100°/s maximum
Cold Start:60 s typical (no almanac or RTC)
Warm Start:30 s typical (almanac and RTC)
Hot Start:10 s typical (almanac, RTC and position)
Heading Fix:10 s typical (Hot Start)
Antenna Input Impedance:50 Ω
Maximum Speed:1,850 kph (999 kts)
Maximum Altitude:18,288 m (60,000 ft)
Autonomous, no SA:1.2 m (RMS 67%)
2.5 m (2DRMS 95%)
SBAS:0.3 m (RMS 67%)
0.6 m (2DRMS 95%)
Atlas Basic (L-band):0.5 m (RMS 67%)
1.0 m (2DRMS 95%)
RTK:10 mm + 1 ppm (RMS 67%)
20 mm + 2 ppm (2DRMS 95%)
Heading (RMS):0.30° rms @ 0.5 m antenna separation
0.15° rms @ 1.0 m antenna separation
0.08° rms @ 2.0 m antenna separation
0.04° rms @ 5.0 m antenna separation
Pitch/Roll (RMS):
Heave (RMS):30 cm (DGPS), 10 cm (RTK)
L-Band Receiver Specifications
Receiver Type:Single Channel
Channels:1525 to 1560 MHz
Sensitivity:-130 dBm
Channel Spacing:5.0 kHz
Satellite Selection:Manual and Automatic
Reacquisition Time:15 seconds (typical)
Ports:4 x full-duplex 3.3V CMOS
(3 x main serial ports, 1 x differential-only port)
1 x USB Host
1 x USB Device
Interface Level:3.3V CMOS
Baud Rates:4800 – 115200
Correction I/O Protocol:Hemisphere GNSS proprietary ROX Format, RTCM v2.3, RTCM v3.2, CMR, CMR+
Data I/O Protocol:NMEA 0183, Crescent binary
Timing Output:1PPS, CMOS, active high, rising edge sync, 10 kΩ, 10 pF load
Event Marker Input:CMOS, active low, falling edge sync, 10 kΩ, 10 pF load
Input Voltage:3.3 VDC +/- 5%
Power Consumption:2.1 W nominal GPS (L1) and GLONASS (L1)
Current Consumption:0.64 A nominal GPS (L1) and GLONASS (L1)
Antenna Voltage:5 VDC maximum
Antenna Short Circuit Protection:Yes
Antenna Gain Input Range:10 to 40 dB
Operating Temperature:-40 °C to +85 °C (-40 °F to +185 °F)
Storage Temperature:-40 °C to +85 °C (-40 °F to +185 °F)
Humidity:95% non-condensing (when in an enclosure)
Mechanical Shock:EP455 Section 5.14.1 Operational (when mounted in an enclosure with screw mounting holes utilized)
Vibration:EP455 Section 5.15.1 Random
EMC:CE (IEC 60945 Emissions and Immunity)
FCC Part 15, Subpart B
Dimensions:109 L x 71 W x 5 H (mm)
4.3 L x 2.8 W x 0.2 H (in)
Weight:50 g (1.77 oz)
Status Indications (LED):Power, Primary and Secondary GNSS lock, Differential lock, DGNSS position, Heading
Power/Data Connector:34-pin male header 2 mm pitch
Antenna Connectors:MCX, female, straight
Aiding Devices
Gyro:Provides smooth and fast heading reacquisition. During loss of GNSS signals heading stability is degraded by < 1° per minute for up to 3 minutes.
Tilt Sensors:Provide pitch and roll data and assist in fast startup and reacquisition of heading solution.


The H220 GNSS OEM Board from Hemisphere is available through Canal Geomatics. If you would like more information about this product, please feel free to get in touch with us by completing the Request Pricing form.