CUAV C-RTK 9Ps Positioning Module | High Precision GPS RTK GNSS Pixhawk


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SKU: 1504851
  1. Centimeter-level positioning for industrial UAV
  2. 10s switch RTK mode
  3. 20Hz high-frequency RTK navigation refresh rate
  4. <10s shorter convergence time
  5. 2 x 9Ps modules serve as a GPS
  6. PX4 and Ardupilot dual-platform compatible
  7. Universal Type-C interface adopted on both mobile/ground end, switch freely

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Brand: CUAV
Category: Flight Controller & Accessories, Drone Parts on Sale
Tags: C-RTK 9Ps, C-RTK 9Ps Positioning Module

This is a CUAV C-RTK 9Ps Positioning Module | High Precision GPS RTK GNSS Pixhawk.

C-RTK 9Ps Positioning Module is a centimeter-level GNSS module. Using two c-RTK modules, one installed on the base and the other installed on the UAV, a real-time GNSS system is designed. By using dual GPS on the plane, you can replace the compass and have a dual GPS yaw. This is desirable due to the error of the compass coming from electromagnetic interferences, suitable for environments with high noise. Compatible with open-source autopilots like PX4 or Ardupilot, this RTK module is an ideal choice for aerial performance and agricultural applications. You can have high-precision take-off, landing, and missions.

A ublox F9P module is used inside to support multiple frequencies as well as the reception from different satellite systems — GPS, Beidou, Glonass, and Galileo.

Cuav En 01Due to using multiple satellites and multiple frequencies, and with the help of advanced RTK algorithms, the position of the base station converges and provides centimeter-level differential data in less than half a minute. The update rate of the RTK algorithm is at 20Hz.

The base and rover units are the same modules with different configuration parameters and different antennas. That just makes it easy to use them in place of each other by just changing a few parameters. However, the antenna used on the rove has a 2dBi gain, while the base station uses a 5dBi gain antenna. The modules are only 30g and can work in harsh environments and temperatures from –40°C to +85°C.

Note: For more technical details go through USER GUIDE in the attachment section


Multi-star Multi-Frequency High- Precision Positioning

Built-in u-blox F9P multi-star multi-frequency satellite receiver with concurrent reception of GPS, GLONASS, Galileo, and BeiDou. Positioning accuracy: <0.01m +1ppm CEP.

Cuav En 03Ultra-fast positioning

Multi-satellite, multi-frequency receiver combined with advanced RTK algorithms enables the C-RTK 9Ps Positioning Module base station to complete convergence and achieve centimeter-level positioning in under 30 seconds.

Dual RTK for yaw, Adapts to a complex environment

Dual C-RTK 9Ps Positioning Module can estimate yaw which can replace the magnetic compass. This is useful for flight in complex magnetic field environments such as close to power lines.

Cuav En 05Fast switch between sky and rover unit

CUAV C-RTK 9Ps Positioning Module adopts the same design as the two units (sky unit and rover unit), and the two units use the same firmware. You only need to load different configuration parameters to complete the fast switching.

Cuav En 06The CUAV C-RTK 9Ps Positioning Module can support all versions of CUAV Flight Controllers.

Packing Includes:

Rover unit stands combo:

1x CRTK 9Ps

1 x  Multi-star multi-frequency spiral antenna

1 x Carbon fiber antenna stand (30mm+bracket)

1 x Pixhack cable (250mm)

1 x V5+/x7 Series (UART1->GPS) cable (250mm)

1 x V5+/x7 Series (UART1->UART4) cable (250mm)

1 x PX4 GPS YAW (UART2->UART2) cable (250mm)

Base unit combo:

1 x C-RTK 9Ps

1 x Multi-star multi-frequency mushroom head antenna

1 x Base station feeder (550mm)

1 x Standard Type-C USB cable (1m)

Receiver type

184 channel ZED-F9P(ublox)




GPS, Beidou, Galileo, GLONASS

Number of concurrent GNSS


GNSS Bands

GPS – L2C(1227.6MHz)
GALILEO – E1B/C(1575.42MHz)
GALILEO- E5b(1207.14MHz);
BeiDou – B1I(1561.098MHz)
BeiDou – B2I(1204.14MHz);
QZSS – L1C/A(1575.42MHz)
QZSS – L2C(1227.6MHz)

Nav. update rate

RTK 20Hz
RAW 25Hz;
PVT 25Hz
(The maximum limit is related to the concurrency setting)

Position accuracy

RTK:0.01m+1ppm CEP
GPS:1.5m CEP;

RTK Surveyin-time



Cold starts<24s
Hot starts<1s


Cold starts –148 dBm
Hot starts –157 dBm
Reacquisition –160 dBm


Active CW detection and removal Onboard band pass flter


Advanced anti-spoofng algorithms

Antenna gain



not support

GPS heading

Support (requires two C-RTK 9Ps); heading accuracy: 0.4edg (reference value)

Base/Rover role swap







NMEA, UBX binary, RTCM 3.x

Operating voltage

4.5V to 6V

Operating temperature

–40°C to +85°C

Shipping Weight 1.179 kg
Shipping Dimensions 28 × 23 × 16 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects.  Reimbursement or replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Questions and answers of the customers

  1. 0 votes
    Q Can you upload user guide of this product answer now
    Asked by Shankarchampay006 on December 7, 2023 1:06 pm

    Hello, for your related datasheet mail us at ht... Read more

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Country Of Origin: China