Vector V103 GPS Compass

Vector V103 and V113 GPS Compasses

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The Vector V103 and V113 GPS compasses from Hemisphere GNSS offer a rugged IP69K design while housing support for both NMEA 2000 and NMEA 0183 interfacing and allowing a seamless choice of communication protocols.



The Vector V103 and V113 GPS compasses from Hemisphere GNSS are known for their superb positioning and heading performance and now include GLONASS. With GLONASS added, both models now provide a robust performance in critical areas where sky blockage takes place. They can also handle the harshest environments due to the rugged IP69K design housing, incorporating pole and fixed mounting capability for both land and marine applications.

The Vector V103 and V113 are suitable for both professional marine surveys and dynamic positioning, and can also be used for machine control applications in mining, agriculture, construction, as well as many other challenging applications.

The V103 and V113 series GPS compasses have all the recent Hemisphere Crescent Vector GNSS technology incorporated. The new low-multipath Cross-Dipole antennas have a 50 cm separation between phase centers. This results in a heading performance of better than 0.3°, while the position accuracy is better than 30cm when Beacon or SBAS corrections are used.

Both models include NMEA 0183 and NMEA 2000 interfaces, allowing seamless communications with Hemisphere’s GNSS messaging. The Crescent Vector technology used delivers continuous, accurate performance, which includes heading, position, pitch, heave and roll. The maintenance-free design and stability of the Vector V103 and V113 compasses replaces both stand-alone GPS and traditional gyrocompasses at a greatly reduced cost.


  • Enhanced heading performance with GLONASS
  • IMO type approved as a Transmit Heading Device (THD)
  • Additional satellite tracking ensures a robust solution
  • Flexibility for easy integration into NMEA 0183 and 2000 interfaces
  • Accurate heading up to 3 minutes during GNSS outages
  • Maintains heading and position lock in obstructed areas
  • Integrated tilt and gyro sensors provide fast start-up times and heading updates during loss of satellite signals

Technical Specifications

GNSS Sensor Specifications
Receiver Type: Vector GNSS L1 Compass
Signals Received: GPS and GLONASS
Channels: 540
GPS Sensitivity: -142 dBm
SBAS Tracking: 2-channel, parallel tracking
Update Rate: 20 Hz standard
Positioning Accuracy
Single Point 1: 1.2 m (Horizontal), 2.5 m (Vertical)
SBAS (WAAS) 2: 0.3 m (Horizontal), 0.6 m (Vertical)
Code Differential GPS 1: 0.3 m (Horizontal), 0.6 m (Vertical)
Heading Accuracy: 0.30°
Pitch/Roll Accuracy:
Heave Accuracy: 30 cm 3
Timing (1PPS) Accuracy: 20 ns
Rate of Turn: 90°/s maximum
Compass Safe Distance: 75 cm (with enclosure) 4
Cold Start: 60 s (no almanac or RTC)
Warm Start: 20 s typical (almanac and RTC)
Hot Start: 1 s typical (almanac, RTC and position)
Heading Fix: 10 s typical (valid position)
Maximum Speed: 1,850 mph (999 kts)
Maximum Altitude: 18,288 m (60,000 ft)
Differential Options: SBAS Beacon, External RTCM
Beacon Sensor Specifications (V113 version)
Channels: 2-channel, parallel tracking
Frequency Range: 283.5 to 325 kHz
Operating Modes: Manual, Automatic, and Database
Compliance: IEC 61108-4 beacon standard
Serial Ports: 1 full-duplex RS232; 1 full-duplex RS422 and 1 half-duplex RS422 (Tx only)
Baud Rates: 4800 – 115200 (V103) and 4800 – 38400 (V113)
Correction I/O Protocol: RTCM v2.3 (DGPS), RTCM SC-104, L-Dif 5
Data I/O Protocol: NMEA 0183, NMEA 2000, Hemisphere Crescent binary 5
Timing Output: 1 PPS (CMOS, active high, rising edge sync, 10 kΩ, 10 pF load)
Heading Warning I/O: Open relay system indicates invalid heading
Input Voltage: 9 to 36 VDC
Power Consumption: 4.3 W nominal (GPS L1 + GLONASS L1)
4.6 W nominal (GPS L1 + GLONASS L1 + Beacon)
Current Consumption: 0.36 A nominal (GPS L1 + GLONASS L1)
0.38 A nominal (GPS L1 + GLONASS L1 + Beacon)
Power Isolation: Yes
Reverse Polarity Protection: Yes
Operating Temperature: -30 °C to + 70 °C (-22 °F to + 158 °F)
Storage Temperature: -40 °C to + 85 °C (-40 °F to + 185 °F)
Humidity: 95% non-condensing
Vibration: IEC 60945 Section 8.7
EMC: CE (IEC 60945 Emissions and Immunity) FCC Part 15, Subpart B CISPR22
IP Rating: IPX6
IMO Wheelmark Certification: Yes (does not include the V103 Non-IMO and V113 Non-IMO models). 6
Dimensions: 66.3 L x 20.9 W x 14.6 H (cm)
26.1 L x 8.3 W x 5.8 H (in)
Weight: V103 – 2.1 kg (4.6 lb)
V113 – 2.4 kg (5.4 lb)
Status Indications (LED): Power
Power/Data Connector: 18-pin, environmentally sealed
Aiding Devices
Gyro: Provides smooth heading, fast heading reacquisition and reliable 1˚ per minute heading for periods up to 3 minutes when loss of GNSS has occurred 4
Tilt Sensors: Provide pitch and roll data and assist in fast start-up and reacquisition of heading solution

  1. Depends on multipath environment, number of satellites in view, satellite geometry, no SA, and ionospheric activity
  2. Depends on multipath environment, number of satellites in view, WAAS coverage and satellite geometry
  3. Based on a 40 second time constant
  4. This is the minimum safe distance measured when the product is placed in the vicinity of the steering magnetic compass. The ISO 694 defines “vicinity” relative to the compass as within 5 m (16.4 ft) separation
  5. Hemisphere GNSS proprietary
  6. NMEA 0183 only


The Vector V103 and V113 GPS compasses from Hemisphere are available through Canal Geomatics. If you would like more information about these products, please feel free to get in touch with us by completing the Request Pricing form.