Locosys Hawk R1
Last updated
Last updated
The LOCOSYS Hawk R1 is a dual-frequency RTK GPS module receiver designed for compatibility with Pixhawk.
The module can act as an RTK GPS rover when installed on the aircraft.
The receiver is capable of concurrently tracking all global civil navigation systems, including GPS, GLONASS, GALILEO, BEIDOU and QZSS. It acquires both L1 and L5 signals at the same time while providing the centimeter-level RTK positioning accuracy.
The built-in lightweight helical antenna enhances RTK positioning stability. The fast time-to-first-fix, RTK convergence, superior sensitivity, low power consumption make it a better choice for Pixhawk-based platform UAVs.
:::note This module does not have a compass. For an equivalent GPS module with a compass try: LOCOSYS Hawk R2. :::
Concurrent reception of L1 and L5 band signals
Support GPS, GLONASS, BEIDOU, GALILEO, QZSS
Capable of SBAS (WAAS, EGNOS, MSAS, GAGAN)
Support 135-channel GNSS
Fast TTFF at low signal level
Free hybrid ephemeris prediction to achieve faster cold start
Default 5Hz, up to 10 Hz update rate (SBAS support 5Hz only).
Build-in super capacitor to reserve system data for rapid satellite acquisition
:::note This module can be used with PX4 v1.13 or above. :::
An RTK GPS kit includes:
1x GPS Module
1x Helix antenna
1x 6-pin JST-GH
RTK setup and use on PX4 via QGroundControl is largely plug and play (see RTK GPS for more information). Connect your Hawk R1 to the GPS2 port on compatible Pixhawk boards (preferred, though you can use any other unused UART port).
For the aircraft, you should set the parameter SER_GPS2_BAUD to 230400 8N1 to ensure that PX4 configures the correct baudrate.
Hawk R1 RTK GPS comes with an 6 pin JST-GH connector that can be plugged into a Pixhawk autopilot.
LOCOSYS GPS pinout is provided below.
1
VCC_5V
2
GPS_RX
3
GPS_TX
4
Null
5
Null
6
Null
7
Null
8
Null
9
GND
Green
TX Indicator
GNSS Data transmission
Red
Power Indicator
Power
Blue
PPS
Precise Positioning Service active
Frequency
GPS/QZSS: L1 C/A, L5C
GLONASS: L1OF
BEIDOU: B1I, B2a
GALILEO: E1, E5a
135 Channels support
Up to 10 Hz update rate (default to 5Hz)
Acquisition Time
Hot start (Open Sky) in 2 seconds
Cold Start (Open Sky) in 28 seconds without AGPS
PPS with 100ms pulse width, 1.8Vdc
External, active Helix antenna
SMA connector
UBlox Protocol Support
U5Hz:UBX-NAV-PVT,UBX-NAV-DOP
1Hz: UBX-NAV-TIMEGPS
Connectivity:
6-pin JST-GH UART/I2C (Pixhawk compatible)
Power:
DC supply voltage 3.3V ~ 5.0V input
Power consumption <1W
More information can be found on LOCOSYS Hawk R1
