LOCOSYS Hawk A1 GNSS
Last updated
Last updated
The LOCOSYS HAWK A1 GPS/GNSS receiver is a dual frequency multi-constellation GNSS/GPS receiver compatible with PX4.
Main features include:
Concurrent reception of L1 and L5 band signals
Supports 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 at 5Hz update rate only)
Built-in super capacitor to reserve system data for rapid satellite acquisition
Three LED indicator for Power, PPS and Data transmit
LOCOSYS (Taiwan)
You can use the Hawk A1 as either main (primary) or secondary GPS system. The PX4 parameters should be set as below for each case.
To use the Hawk A1 your main GPS device:
To use the Hawk A1 as an auxiliary GPS device (in addition to the main GPS):
The Locosys GPS comes with an 6-pin JST-GH Pixhawk-standard connector that can be inserted directly into either the GPS1 UART port (or GPS2 UART ports from Pixhawk FMUv5).
The LOCOSYS GPS pinout is provided below. This can be used to help modify the connector for other autopilot boards.
Receiver Type: 135-channel LOCOSYS MC-1612-V2b engine, GPS/QZSS L1 C/A, L5C, GLONASS L1OF, BeiDou B1I, B2a Galileo:E1, E5a SBAS L1 C/A: WAAS, EGNOS, MSAS, GAGAN
Navigation Update Rate: Max: 5Hz default Max: 10 Hz
Positioning Accuracy: 3D Fix
Time to first fix:
Cold start: 28s
Aided start: EASY
Sensitivity:
Tracking & Navigation: -165 dBm
Assisted GNSS: EASY DGPS
Oscillator: 26Mhz TCXO
RTC crystal: 32.768KHz
Available Antennas: L1+L5 multi frequency antenna
Signal Integrity: L1+L5 GPS GLONASS GALILEO BEIDOU QZSS SBAS
Protocols & Interfaces:
UART/I2C: JST_GH Main interface, Switch internally.
| Parameter | Value | Description |
|---|---|---|
| Parameter | Value | Description |
|---|---|---|
| pin | Locosys GPS | pin | Pixhawk GPS 2 |
|---|---|---|---|
| Color | Name | Description |
|---|---|---|
102 (Telem 2 or another available serial port)
Configure main GPS port
1 (u-blox)
Configure GPS protocol
230400
Configure the serial port baudrate (here the GPS is connected to TELEM2 for instance)
102 (Telem 2 or another available serial port)
Configure main GPS port
1 (u-blox)
Configure GPS protocol
230400
Configure the serial port baudrate (here the GPS is connected to TELEM2 for instance)
1
VCC_5V
1
VCC
2
GPS_RX
2
GPS_TX
3
GPS_TX
3
GPS_RX
4
NC
4
SDA
5
NC
5
SCL
6
GND
6
GND
Green
TX Indicator
GNSS Data transmission
Red
Power Indicator
Power
Blue
PPS
Precise Positioning Service active
