C-RTK 2 PPK Module

C-RTK 2 is a high-performance PPK/RTK positioning module created by CUAV for professional applications such as drone aerial survey/mapping). Its small shape/light weight, industrial-grade IMU combination, and combination of high-precision positioning modules can easily satisfy the most demanding Copter/VTOL Plane/Traditional Helicopter applications.

../_images/c-rtk2.png

Other characteristics

  • High-performance H7 processor

  • High precision industrial grade IMU, Magnetometer and Barometer

  • Supports RTK and saves RAW raw data (PPK) at the same time

  • Multi-satellite and multi-frequency receivers

  • UAVCAN/Dronecan protocol

  • Supports camera hotshoe and shutter trigger

  • Compatible with ArduPilot/PX4 flight controller software, and using a CUAV X7 series flight controller, it is plug and play.

  • HS_USB C and micro-SD disk interfaces

Key Features

  • ZED-F9P RTK Receiver

  • 184 Receiving channels

  • STM32H743VIH6(2M flash、1M RAM)Processor

  • On-board sensors:
    • Accelerometer/Gyroscope: ICM20689

    • Magnetometer: RM3100

    • Barometer: ICP10111

  • TF card expansion (32G(MAX))

  • PPK(post processed kinematic) support

  • RTK(Real - time kinematic) support

  • GNSS Bands
    • GPS:L1C/A,L2C

    • GLONASS:L1OF,L2OF

    • GALILEO: E1B/C E5b

    • Beidou:B1I B2I

    • Enhanced system

    • QZSS:L1C/A,L2C,L1S

    • SBAS:L1C/A

    • 4(GPS、GLONASS、GALILEO、Beidou)concurrent GNSS

  • Update rates
    • RTK Up to 20Hz

    • RAW Up to 25Hz((Default 5Hz))

  • Position accuracy(RMS)
    • RTK:0.01m+1ppm(level);0.02m+1ppm(vertical)

    • GPS:1.5m(level)

  • Acquisition
    • Cold starts 24 s

    • Aided starts 2 s

    • Re-acquisition 2 s

  • Sensitivity
    • Tracking & Nav –167 dBm

    • Cold starts –148 dBm

    • Hot starts –157 dBm

    • Rea-cquisition –160 dBm

  • Anti-spoofng
    • Advanced anti-spoofng algorithms

  • Protocols
    • NMEA

    • UBX binary

    • RTCM version 3.x

  • Time pulse
    • 0.25Hz~10Hz(Configurable)

  • Anti-jamming
    • Active CW detection and removal Onboard band pass flter

  • Support flight control type
    • Compatible with flight controllers running ArduPilot/PX4 firmware

  • Interfaces
    • 1 Hotshoe

    • 1 Shutter in

    • 1 Sutter out

    • 1 Type C(HS_USB)

    • 1 F9P USB

    • 1 F9P UART

    • 1 Antenna(mmcx)

  • Supply voltage
    • 4.5~6v

  • Operating temperature
    • -20~85℃

  • Size
    • 56x33x16.5mm

  • Weight

    -39g

LED Indicators

../_images/led.png
  • SYS Led
    • 100ms flashing: In bootloader

    • 1000ms flashing: Normal working condition

  • TF LED(TF Card)
    • Flashing: Noraml SD card reading and writing

    • Always bright: No TF card or file system error of TF card. Try cycling the power.

  • Shutter In led (on side)
    • Flashing: Camera shutter signal input

  • Shutter Out led
    • Flashing: Output shutter trigger signal to camera

  • CAN LED
    • Dark: No data input and output

    • Blink once every 2 seconds: Data is being sent, but no data is beingreceived

    • Blink twice within 2 seconds: Data is being received, but no data is being sent

    • Blink 3 times in 2 seconds: Sending and Receiving data.

  • PPS LED
    • On: no FIX

    • Flashing: FIX

  • RTK LED
    • Blinking 3 times every 2 seconds: Sending and Receiving RTK data.

    • Flash:RTK Float

    • Solid On:RTK FIX

    • Dark:NO RTK

  • RUN LED
    • Red led always On: System Error

    • Yellow led always On: Application Warning

    • Yellow flashing (100ms): GNSS(F9P) Firmware update

    • Blue Flashing: Base station mode

    • Green Flashing: Rover mode

  • Mode button
    • When not connected to the computer, press and hold for 3 seconds to switch the mode

Pinouts

../_images/c-rtk2_pinouts1.jpg ../_images/c-rtk2_pinouts0.jpg ../_images/c-rtk2_pinouts2.jpg

Preparation before use

Only use PPK

../_images/ppk1.jpg
  • 1 PPK base station/Ntrip account

  • 1 C-RTK 2 1

  • 1 Mapping camera

  • 1 Drone

PPK+RTK

../_images/rtk1.jpg
  • 1 PPK base station/Ntrip account

  • 1 C-RTK 2

  • 1 Mapping camera

  • 1 Drone

  • 1 Data link

  • 1 Computer

Note

C-RTK 2 can be used as an RTK base station and rover RTK gps, as well as a PPK rover gps,It is not recommended to be used as a PPK base station.

User Manual

C-RTK2 Quick start

Video

More information

CUAV Docs