GPS Module Holybro H-RTK Unicore UM982 (Dual Antenna Heading)

Product detailed description

GPS Module Holybro H-RTK Unicore UM982 (Dual Antenna Heading)

The Holybro UM982 Dual Antenna RTK GPS provides high-precision positioning information and is capable of generating non-magnetometer moving baseline yaw determinations for autopilots with one single GPS module. 

One of the best applications of this GPS is to provide compass-less YAW information to the autopilot (commonly called GPS Heading or Moving Baseline Yaw). Using this GPS as a yaw source prevents magnetic interference from the vehicle motors and electrical systems and any environmental interference sources, such as metallic structures or equipment, that can cause incorrect yaw reports to the autopilot.

This works even if the GPSs are not receiving RTCM data from a fixed RTK station or NTRIP server. The device is based on the Unicore UM982 NMEA GNSS module and supports RTK positioning adjustment for centimeter-level accuracy, GPS/GLONASS, Beidou, Galileo, and QZSS global positioning systems.

It also includes a magnetometer, LED, and safety switch button. It also serves as an RTK-corrected vehicle GPS, with or without moving baseline yaw determination, and as a base station GPS for sending RTCM data to a ground control station to provide an RTK source for the vehicle via telemetry.

Note: The Status LED driver has changed. This LED is supported in PX4 1.14, ArduPilot 4.4.0 & later.

Specifications:

Application:
- Rover;
- Moving Baseline Rover;
- Base Station (Recommend using H-RTK F9P-Base as a base station).

Compass:
- IST8310.

GNSS:
- BDS B1I/B2I/B3I;
- GPS L1C/A/L2P(Y)/L2C/L5;
- GLONASS L1/L2;
- Galileo E1/E5a/E5b;
- QZSS L1/L2/L5.

RTK Accuracy (RMS):
- Horizontal: 0.8cm + 1ppm
- Vertical: 1.5cm + 1ppm
- Velocity: 0.03 m/s

DGPS Accuracy (RMS):
- Horizontal: 0.4 m
- Vertical: 0.8 m
- Heading: 0.1°/1 m baseline

Single Point Positioning Accuracy (RMS)
- Horizontal: 1.5m
- Vertical: 2.5m

Antennas Peak Gain (MAX):
- 2dBi

LNA Gain (typical):
- 33±2dB

Time-TO-First Fix:
- Cold start: ≤ 30s
- Hot start: ≤ 5s

RTK-SurveyIn-Time:
- ≤5 minute @2.0mCEP

Data and Update Rate:
- 20 Hz Positioning & Heading
- 20 Hz Raw Data observation

Port:
- Port 1: GH1.25 10-pin
- Port 2: USB Type-c
- Port 3: UART 2 (GH1.25 6pin)

Cable Length:
- Board: SMA female
- Antenna: SMA male

Baud rate: (Adjustable):
- 230400 5Hz default

Working voltage:
- 4.75V~5.25V

Current Consumption:
~350mA

Dimensions:
- Board: 34.8*58.9*14.4mm
- Antenna Diameter: 27.5mm
- Antenna height: 59mm

Weight:
- 37.9g (without antennas)

Package Includes:

1x H-RTK UM982
2x High Precision Helical Antennas
2x Antenna Mounts
2x SMA Cables (40cm)
2x 10pin - 10pin JST-GH Cables
1x 10pin - 6pin JST-GH Cable
1x 6pin - 6pin JST-GH Cable