Product Description
C-RTK 2HP Dual antenna centimeter level positioning and directional module | C-RTK 9Ps Accurate and exquisite Centimeter level positioning module | C-RTK 2 Coming for surveying and mapping purposes.The first PPK module in the open source community |
All star multi frequency receiver Centimeter level positioning Dual antenna direction finding RM3100 Industrial Compass
Multi frequency high-precision positioning across the entire satellite
The C-RTK 2HP is equipped with an all satellite multi frequency receiver
that supports GPS, BDS, Glonass, Galileo, and QZSS satellite systems.
With a wider range of frequency bands, it provides stronger positioning
capabilities and higher positioning accuracy. Positioning accuracy plane:
0.8cm+1PPM/elevation: 1.5cm+1PPM
Multi star, multi frequency high-precision positioning
C-RTK 9Ps and C-RTK 2 have built-in ubbox F9P multi satellite multi frequency
satellite receivers, four GPS, BDS, GIONASS, and GALILEO satellite systems,
and support simultaneous reception of four satellite systems, with a positioning
accuracy of RTK 0.01m+1ppm CEP.
Quick positioning, no need to wait
By combining multi frequency GNSS signals from all satellites with advanced RTK
algorithms, convergence can be achieved in just over ten
seconds,Realize centimeter level positioning
Quick positioning, no need to wait
By combining multi satellite and multi frequency GNSS signals with advanced RTK algorithms,
the base station can converge and send differential data to the mobile station in just over
ten seconds, achieving centimeter level positioning
Single module dual antenna directional
C-RTK2HP supports one module, dual antenna reception, realizing
unmanned aerial vehicle direction finding, replacing magnetic compass,
achieving more stable flight at lower cost, and adapting to complex environments
Dual antenna direction finding, suitable
for complex environments
The use of two C-RTK 9Ps on the aircraft side
can achieve dual antenna direction finding
function; Replace the magnet in dronesPlate;
Enable drones to operate stably in complex
electromagnetic environments such
as power inspections
Built in industrial grade RM3100 compass
C-RTK 2HP is equipped with an industrial grade RM3100 compass, which can be installed
in a location far away from interference and can be used as Reliable redundant backup source
Dual end fast switching
The C-RTK9Ps positioning system adopts the same design for both ends
(base station end and mobile end), and both ends use the same firmware.
You only need to load different configuration parameters to complete quick switching
Used as a mobile device Used as a base station terminal
Simultaneously supporting RTK&PPK
C-RTK2 supports both RTK and PPK functions, with a maximum support for 25Hz raw data recording, making it very suitable for applications
In fields such as surveying, autonomous driving, unmanned vehicles, inspection, and plant protection.
Support shutter hot shoe triggering
C-RTK2 supports both shutter and hot shoe dual triggering, allowing for real-time communication between
the hot shoe and camera for more accurate results pos data
Shutter interface Hot shoe interface
| High performance H7 processor C-RTK 2 adopts STM32H7 processor, STM32H743 processor, Cortex-M7 core (with double precision floating-point unit), running frequency up to 480MHz, 2MB Flash, 1MB RAM, running real-time system, making C-RTK 2 work efficiently and stably. |
Built in high-precision industrial grade IMU C-RTK 2 is equipped with high-precision industrial grade ICM-20689 accelerometer&gyroscope, RM3100 electronic compass ICP10111 barometer, and can be configured as an external IMU for flight control. It can also record rich information such as attitude and elevation during shooting in POS data. |
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| High speed USB flash drive reading C-RTK2 supports direct connection to a computer via a Type-C data cable to read data from memory cards, with a speed of up to 48M/s. It supports up to 32GB memory cards and can be quickly configured with C-RTK2 parameters through text. |
Dual platform support for plug and play C-RTK2 adopts UAVCAN/Dronecan bus protocol; Perfectly compatible with PX4/ArduPilot; Paired with a flight controller, it can achieve plug and play functionality, eliminating complex configurations and wiring. |
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Application
Suitable for various application scenarios
C-RTK2 is highly suitable for applications in aerial surveying, unmanned driving, unmanned vehicles, crop protection, and more

Aerial surveying and mapping Agricultural plant protection Cluster performance Precise navigation
Interface Definition
Size chart
C-RTK 9Ps 30g
Thread: M2.5
Hole spacing: 9mm
Base station antenna ≤ 450g Mobile antenna ≤ 17g
Interface Definition
RTK series parameter comparison table
Model | C-RTK 2HP | C-RTK 2 | C-RTK 9Ps |
Processor | STM32F4 | STM32H743 | |
Sensor | ICM-42688P + RM3100 | ICM-20689 +RM3100 | IST8310 |
Satellite receiver | High performance GNSS SoC | ublox F9P | ublox F9P |
Channel | One thousand four hundred and eight | 184 | 184 |
Positioning system | All star multi frequency | Four star multi frequency | Four star multi frequency |
Operating frequency band | L1/L2/L5/G1/G2 B1/B2/B3I/E1/ E5a/E5b | L1/L2/G1/G2 B1/B2/E1b/E5b | L1/L2/G1/G2 B1/B2/E1b/E5b |
RTK | √ | √ | √ |
PPK | × | √ | × |
Dual antenna direction finding | √ (Single module) | × | √ (Dual module) |
Antenna | 2 | 1 | 1 |
Communication interface | DroneCAN/UART/USB | DronCAN/UART | UART/USB |
Product parameters
C-RTK 2HP Specification Parameter Table
Processor | STM32F4 |
Positioning module | Multi frequency dual antenna positioning module for all satellites |
Sensor | Magnetic compass: RM3100 accelerometer gyroscope: ICM42688 |
Channel | 1408 channel |
Positioning system | BDS/GPS/GLONASS/Galileo/QZSS |
Antenna 1 (main) | BDS:B11、B21、B31,GPS:L1C/A、L2P/L2C、L5GLONOSS:L1、L2Galileo:E1、E5a、E5bQZSS:L1、L2、L5 |
Antenna 2 | BDS:B11、B2I、B3IGPS:L1C/A、L2CGLONOSS:L1、L2Galileo:E1、E5bQZSS:L1、L2 |
Positioning accuracy | Single point positioning: horizontal 1.5M/elevation 2.5mDGPS (auxiliary positioning): horizontal 0.4M+1PPM/elevation: 0.8m+1PPMRTK: horizontal 0.8cm+1PPM/elevation: 1.5cm+1PPM |
Directional accuracy | 0.2 degrees/1m (distance between antenna 1 and antenna 2) |
Maximum star search capability | Single:28+ RTK:50+ |
Positioning speed | Cold start <30s/auxiliary start <5s |
Data refresh rate | 5Hz (default); Max 20Hz |
Differential data format | RTCM3.X |
Data protocol | Dronecan/NMEA |
Interface | Antenna interface * 2CAN * 1 UART * 1 DSU * 1 USB * 1 |
Working Voltage | 4.7~5.2V |
Operating Temperature | -20~85C |
Size | 50x37x17mm |
Weight | 40g |
C-RTK 9Ps Specification Parameter Table
Satellite receiver | 184 channel ZED-F9P (ubbox) |
Electronic compass | IST8310 |
Navigation Satellite System | Beidou, Galileo, Glonass GPS |
Concurrent Navigation Satellite System | 4 |
Satellite frequency band | GPS-L1C/A,GPS-L2C |
GLONASS-L1OF,GLONASS- L2OF | |
GALILEO-E1 B/C,GALILEO- E5b | |
BeiDou-B1I,BeiDou-B2I | |
QZSS-L1C/A,QZSS-L2C | |
Navigation refresh rate | RTK 20Hz;RAW 25Hz;PVT 25Hz;(The maximum limit is related to the concurrency settings) |
Positioning accuracy | RTK positioning: 0.01M+1ppm CEP |
Single point positioning: 1.5M CEP; | |
SBAS assisted positioning 1.0M CEP | |
Convergence time | RTK<60s |
Capture satellite | Cold start<24s Hot start<1s |
Sensitivity | Tracking&Navigation: -167dBm |
Anti-interference | Active CW detection and elimination |
Safety | Advanced anti spoofing algorithm |
Antenna gain | Mobile end: 2dBi Base station end: 5dBi |
PPK | Not supported |
Dual antenna direction finding | Support (requires two positioning modules); Heading accuracy: 0.4edg (reference value) |
Mode Switch | Support RTK base station/mobile terminal switching |
Data protocol | NMEA、UBX binary、RTCM 3.x |
Interface | |
Serial port | 2个UART |
Antenna interface | 1个MMCX |
USB | 1 |
Physical properties | |
Working Voltage | 4.5 V to 6 V |
Operating Temperature | -40 ° C to+85 ° C |
Size | 47mm*32mm*12.2mm |
Weight | 30g (excluding antenna) |
Name | Navigation refresh rate | Mobile base station mode | Heading accuracy |
GPS+Beidou+Galileo+GLONASS | RTK:7Hz GPS*:9Hz | 5Hz | 0.4deg |
GPS+Galileo+Glonass | RTK:10Hz GPS*:10Hz | 5Hz | 0.4deg |
GPS+Galileo | RTK:15Hz GPS*:20Hz | 5Hz | 0.4deg |
GPS+Glonass | RTK:14Hz GPS*:20Hz | 5Hz | 0.4deg |
GPS+Beidou | RTK:13Hz GPS*:26Hz | 5Hz | 0.4deg |
GPS | RTK:20Hz GPS*:25Hz | 8Hz | 0.4deg |
Remark | GPS * as a regular/GPS for single point positioning | Dual C-RTK 9s Direction Finding | |
C-RTK 2 Specification Parameter Table
Satellite receiver | u-blox F9P |
Receiving channel | 184 |
Processor | STM32H743VIH |
Flash | 2M |
Ram | 1M |
Clock rate | 480MHz |
IMU | ICM-20689 |
Electronic compass | RM3100 |
Barometer | ICP10111 |
Storage | Maximum 32GB |
Hot shoe trigger | Support |
PPK | Support |
Satellite frequency band | GPS: L1C/A, L2CGLONASS: L1OF, L2OF Galileo: E1B/C, E5b Beidou: B11, B21 |
Enhance the system | QZSS:L1C/A,L2C,L1SSBAS:L1C/A |
Number of concurrent navigation systems | 20Hz (RTK highest), 25Hz (PPK highest) |
Navigation refresh rate | <10s |
Convergence time | RTK 0.01m+1ppm CEP |
Positioning accuracy | RTK0.01m+1ppm CEP |
Capture speed | Cold start: 24 seconds Capture speed Capture again: 1 second Auxiliary start: 2 seconds |
Sensitivity | Tracking&Navigation: -167dBm Cold Start C: -148dBm Hot Start: -157dBm Recapture: -160dBm |
Safety | Advanced anti spoofing algorithm |
Data protocol | UAVCAN/NMEA/UBX/RTCM3.3 |
Time Pulse | Configurable from 0.25Hz to 10MHz |
Anti-interference | Active CW detection and elimination, onboard filter compatible with APM flight control, compatible with PX4 flight control |
Support flight control types | 1 (High speed USB) |
USB | 1 |
F9P USB | 1 |
F9P UART | 1 |
CAN port | 1 |
Shutter input | 1 |
Shutter output | 1 |
Hot shoe | 1 |
Antenna interface | 1 |
Working Voltage | 4.5~6V |
Operating Temperature | -20~ 85℃ |
Size | 56x33x16.5mm |
Weight | 39g |
Mobile Package
C-RTK 9PS ×1 Multi star multi frequency spiral antenna x 1 Mobile feeder (550mm) × 1 Pixhack connection cable (250mm) × 1 V5+/X7 series (UART1->GPS) connection cable (250mm) × 1 V5+/X7 series (UART1->UART4) connection cable (250mm) × 1 PX4 GPS YAW (UART2->UART2) connection cable (250mm) × 1 |
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Mobile Carbon Fiber Bracket Package
C-RTK 9PS ×1 Multi star multi frequency spiral antenna x 1 Carbon fiber antenna bracket+feeder (30mm with bracket) x 1 Pixhack connection cable (250mm) × 1 V5+/X7 series (UART1->GPS) connection cable (250mm) × 1 V5+/X7 series (UART1->UART4) connection cable (250mm) × 1 PX4 GPS YAW (UART2->UART2) connection cable (250mm) × 1 |
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Base station package
C-RTK 9Ps Multi star and multi frequency mushroom head antenna Base station feeder (1.5m) Standard Type-C USB cable (1m) |
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Packing List
C-RTK 2HP Host Multi star and multi frequency antenna x2 Type-C data cable x1 Antenna feeder/50cmx2 CAN data cable/35cm x1 UART data cable/40cm x1 |
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C-RTK2HP&C-RTK 9Ps Package List
C-RTK 2HP Host Multi star and multi frequency antenna x2 Type-C data cable x2 Antenna feeder/50cm x2 CAN data cable/35cm x1 UART data cable/40cmx1 C-RTK 9Ps Host Multi star and multi frequency mushroom head antenna x1 Base station feeder/55cm x1 |
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C-RTK 2 accessory list
CAN data cable 35cm × 1 Shutter input line 35cm × 1 Hot shoe input line 30cm × 1 Hot shoe trigger line 30cm × 1 DuPont Head 3P (for rewiring) 20cm × 1 Canon 2.5MM Shutter Trigger Line 40cm × 1 SONY USB Shutter Trigger Cable 30cm × 1 Antenna feeder 50cm × 1 Type-C cable x 1 Multi star multi frequency spiral antenna x 1 Hot shoe PCB x 1 |
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Measured data

Horizontal accuracy

Latitude accuracy

Longitude accuracy

Ground speed accuracy

Speed accuracy

Elevation accuracy

High precision




















