GHRS1 HEADING SENSOR
PITCH-PERFECT.
GHRS1 Three-Axis Heading Sensor
For optimum steering control, stabilize your autopilot, radar and chartplotter with Geonav’s solid-state, three-axis heading sensor. The GHRS1 combines a digital compass, three-axis accelerometer and Rate Gyro to achieve one to two degrees of dynamic heading accuracy, even in the roughest of seas. Rapid, 10Hz update rate ensures exceptional dynamic position reference performance.
GHRS1 Heading Sensor |  |
| Specifications | GHRS1 |
| Compass Accuracy | |
| RMS When Level | 1˚ |
| RMS for Pitch and Roll Angles up to 30˚ | 2˚ |
| RMS for Pitch and Roll Angles up to 45˚ | 3˚ |
| Heading Display Resolution | 0.1˚ |
| Settling Time | 1 second (adjustable) |
| Heading Data Output Update Rate | |
| NMEA 0183 | 10Hz |
| NMEA 2000 Optional Cable) | Up to 20Hz |
| Heading Variation | Yes (w/ GPS interface) |
| Rate-of-Turn Range | 0˚ to 70˚ per second |
| Rate-of-Turn Accuracy | 1˚ per second |
| Rate-of-Turn Output Update Rate | |
| NMEA 0183 | 2Hz |
| NMEA 2000 | Up to 20Hz |
| Pitch and Roll Range | ± 50˚ |
| Pitch and Roll Accuracy | <1˚ |
| Pitch and Roll Display Resolution | 0.1˚ |
| Certifications and Standards | CE, IPX6, RoHS, IEC60945 |
| Pitch and Roll Data Output Update Rate | |
| NMEA 0183 | 2Hz |
| NMEA 2000 | Up to 20Hz |
| Operating Voltage | 9 to 32 VDC |
| Supply Current | 80mA max |
| Supply Power | L800mW |
| NMEA 2000 Load Equivalency Number (LEN) | 3 |
| Data Output Protocols | NMEA 0183 Sentence Structure (RS232 Level Output)$HCHDG (Heading, Deviation and Variation)$HCHDT (Heading Relative to True North)$TIROT (Rate of Turn)
$YXXDR (Transducer Measurements: Vessel Attitude) |
| NMEA 2000 Supported PGNs | 127250 (Vessel Heading)127251 (Rate of Turn)
127257 (Attitude) |