C-RTK 9P RTK Receiver
Description
The CUAV C-RTK 9P GPS receiver is an RTK GPS module designed by CUAV for the professional market. It uses u-blox's F9P module, supports multi-satellite multi-frequency, and uses advanced RTK algorithms. It can build an RTK system with two identical C-RTK 9P modules. Using it, the PX4 can achieve centimeter-accurate position in seconds, which is much more accurate than the average GPS, and faster and more convenient than the previous generation M8P module.
NOTE
Due to product update and iteration, C-RTK 9P has been discontinued; it is recommended to replace it with C-RTK 9Ps.
Key Features
- Receiver type
- RTK Receiver: u-blox F9P
- GNSS
- GPS / QZSS, BeiDou, Galileo, GLONASS
- GNSS Bands
- GPS L1C/A L2C, GLONASS L1OF L2OF, GALILEO E1B/C E5b, BDS B1I B2I, QZSS L1C/A L2C
- Nav. update rate
- RTK Up to 20 Hz
- Position accuracy
- RTK 0.01 m + 1 ppm CEP
- Convergence time
- RTK < 10 sec
- Acquisition
- Cold starts 24 s
- Aided starts 2 s
- Reacquisition 2 s
- Sensitivity
- Tracking & Nav –167 dBm
- Cold starts –148 dBm
- Hot starts –157 dBm
- Reacquisition –160 dBm
- Anti-jamming
- Active CW detection and removal Onboard band pass filter
- Anti-spoofing
- Advanced anti-spoofing algorithms
- Interfaces
- 2 UART
- 1 USB
- 1 I2C
- 1 Antenna interface(MMCX)
- Protocols
- NMEA
- UBX binary
- RTCM version 3.x
- Operating temperature
- –40 °C to +85 °C
- Size
- 31.5×48×12 mm
- Weight: 27 g
Pinouts
Hardware connection
AS RTK BASE
- Connect C-RTK 9P and telemetry to PC with USB cable
NOTE
Please set up the rtk base station in an unobstructed outdoor area to obtain a good satellite search signal.
You need to use Mission Planner/QGroundControl for base station setup.
AS Rover
NOTE
The package contains special cables for different flight controllers, please use different wiring according to your flight controller selection.
Connect to V5+/v5 nano
The C-RTK 9P (Rover) 10P cable is connected to the flight controller GPS&SAFETY interface; the 4P cable is connected to the v5+/v5 nano series flight control UART4 interface, and the TYPE C interface is connected to the C-RTK 9P.
- Telemetry(air) connected to the TELEM (radio) interface.
Connect to Pixhack
C-RTK 9p(Rover) 6P cable is connected to flight controller GPS interface; 4P cable is connected to flight controller’s ser4/5, and TYPE C interface is connected to C-RTK 9p.
- Telemetry(air) connected to the TELEM (radio) interface.
Connect to other flight controllers
NOTE
If you are connecting to other flight controllers, please choose the C-RTK 9P (for V5+) kit, which contains wires to connect to other PX4 flight controls (can be used to connect to Pixhawk v6x or other flight controllers), usually you don't need to modify the wire).
| pin | C-RTK 9P(6pin to 6pin cable) |
|---|---|
| 1 | VCC |
| 2 | GPS_RX |
| 3 | GPS_TX |
| 4 | SCL |
| 5 | SDA |
| 6 | GND |
NOTE The following interface description is C-RTK Cable (for V5+ or V5 nano)
| PIN | C-RTK GPS |
|---|---|
| Color | GND |
| Green | TX(M8N GPS) |
| Grey | RX (M8N GPS) |
| Red | VCC(5V) |
| Brown | GND |
| Purple | SDA |
| Blue | SCL |
| Yellow | TX(RTK) |
| White | RX(RTK) |