RTK SurveyorsRTK Surveyors

SparkFun's division dedicated to positioning, navigation, and timing products. 

About SparkPNT


SparkPNT is a new division of SparkFun focused on designing low-cost, high-performance GNSS products.

With the release of our first RTK Surveyor in 2020, SparkFun has been supplying devices for users in need of millimeter positional accuracy, at a fraction of the price of industry leaders. 

SparkFun RTK Facet on monopoleSparkFun RTK Facet on monopole

SparkPNT Products


GNSS Surveyors


Fully enclosed products ready for professional-grade surveying or personal use.

RTK Boards


Breakout boards built around the best GNSS modules available, ready to be integrated into larger projects with robust documentation at your disposal. 

Compare RTK Surveyors


RTK Torch frontRTK Torch front

The Torch is a quad-band receiver housed in a waterproof aluminum enclosure with tilt compensation, onboard LoRa radio and Galileo-HAS support.  

Rover Base Display Receiver Antenna Battery Runtime Reception

Yes

Yes

Yes

Unicore UM980 Internal 26+ hrs L1/L2/L5
RTK Facet frontRTK Facet front

The mosaic-X5 is a high precision dedicated base station with an advanced web-based control interface that can act as a fully fledged NTRIP Caster.

Rover Base Display Receiver Antenna Battery Reception

Yes

Yes

Yes

Septentrio mosaic-X5 L1/L2/L5 GNSS Surveying Antenna External L1/L2/L5
RTK Facet frontRTK Facet front

The Facet is a general purpose receiver that can achieve centimeter-level positioning accuracy.

Rover Base Display Receiver Antenna Battery Runtime Reception

Yes

Yes

Yes

u-blox ZED-F9P Internal 6000mAh L1/L2
RTK Facet L-BandRTK Facet L-Band

The Facet L-Band is a surveying receiver that can receive RTK corrections directly from satellites, with no Internet connection or Base Station required.

Rover Base Display Receiver Antenna Battery Runtime Reception

Yes

Yes

Yes

u-blox ZED-F9P
& NEO-D9S
Internal 6000mAh L1/L2
RTK Reference StationRTK Reference Station

The Reference Station is a dedicated base station in aluminum housing fit for permanent installation, and can be used as a fixed location NTP server

Rover Base Display Receiver Antenna Battery Reception

Yes

Yes

Yes

u-blox ZED-F9P External Multiple Options L1/L2
RTK EVK frontRTK EVK front

The EVK is a platform for testing out RTK applications, and can communicate over cellular LTE, WiFi, and Ethernet, and can also receive satellite-based corrections.

Rover Base Display Receiver Antenna Battery Reception

Yes

Yes

Yes

u-blox ZED-F9P L1/L2/L5 GNSS Surveying Antenna External L1/L2
RTK SurveyorRTK Surveyor

The Surveyor is our first-generation surveyor that can achieve centimeter-level accuracy when paired with a surveying antenna. 

Rover Base Display Receiver Antenna Battery Runtime Reception

Yes

Yes

No

u-blox ZED-F9P External 1000mAh L1/L2


Compare RTK Breakout Boards


RTK PostcardRTK Postcard

The Postcard is a compact quad-band dev board for high-precision PNT needs that combines the Quectel LG290P GNSS RTK with an Espressif ESP32-PICO-MINI-02.

Receiver Connector Application Reception
Quectel LG290P SMA Base or Rover L1/L2/L5/E6
Triband GNSS RTK Breakout - mosaic-X5Triband GNSS RTK Breakout - mosaic-X5

The mosaic-X5 Triband GNSS RTK Breakout receives L1, L2, and L5 GPS bands simultaneously,  and is also capable of interference mitigation and anti-spoofing through Septentrio's powerful mosaic-X5 module.

Receiver Connector Application Reception
Septentrio mosaic-X5 SMA Base or Rover L1/L2/L5
SparkFun GPS-RTK-SMA Breakout - ZED-F9PSparkFun GPS-RTK-SMA Breakout - ZED-F9P

The GPS-RTK-SMA Breakout is a powerful RTK board featuring the ZED-F9P module from u-blox, perfect for integrating into large-scale RTK projects.

Receiver Connector Application Reception
u-blox ZED-F9P SMA Base or Rover L1/L2
SparkFun GPS-RTK Dead Reckoning Breakout - ZED-F9R, SMA (Qwiic)SparkFun GPS-RTK Dead Reckoning Breakout - ZED-F9R, SMA (Qwiic)

The  ZED-F9R GPS-RTK Dead Reckoning Breakout is a high-precision Automotive Dead Reckoning board, providing a highly accurate and continuous position by fusing a 3D IMU sensor, wheel ticks, a vehicle dynamics model, correction data, and GNSS measurements.

Receiver Connector Application Reception
u-blox ZED-F9R SMA Rover L1/L2

RTK Surveyor Kits

We have kits available that contain everything you need to get centimeter level global positioning, all packaged up in a handy carrying case.

Helpful Resources For Your SparkPNT Setup


Learn how to hookup your surveyor, build a reference station or set up a rover base with our helpful resources below.

GNSS hardware being hooked upGNSS hardware being hooked up

Interested in high precision GNSS without setting up a base station?

SparkFun RTK Surveyor Hookup GuideSparkFun RTK Surveyor Hookup Guide

RTK Everywhere is our new firmware for our enclosed PNT products. Learn more about what it can do and why we developed it.

SparkFun RTK Express Hookup GuideSparkFun RTK Express Hookup Guide

Correction data is used in surveying and navigation to enhance the accuracy of GNSS. Take a deep dive with us!

How to Upgrade Firmware of a u-blox GNSS ReceiverHow to Upgrade Firmware of a u-blox GNSS Receiver

A few steps and you'll upgrade to the latest features on a u-blox GNSS receiver.

How to Build a DIY GNSS Reference StationHow to Build a DIY GNSS Reference Station

Learn how to affix a GNSS antenna, use PPP to get its ECEF coordinates and then broadcast your own RTCM data over the internet and cellular using NTRIP to increase rover reception to 10km!

Setting up a Rover Base RTK SystemSetting up a Rover Base RTK System

Getting GNSS RTCM correction data from a base to a rover is easy with a serial telemetry radio! We'll show you how to get your high precision RTK GNSS system setup and running.

What Is GPS RTK?What Is GPS RTK?

Learn about the latest generation of GPS and GNSS receivers to get 14mm positional accuracy!

Real Time Kinematics (RTK) ExplainedReal Time Kinematics (RTK) Explained

Watch a video explaining the functionality of RTK and see a few use cases in action.

What is Tilt Compensation? articleWhat is Tilt Compensation? article

When surveying out in the field, being on a tilt can affect data accuracy. See how we remedy that.

RTK Surveyor Accessories


Depending on your surveyor setup and needs you may need additional hardware to get going. Here are some commonly bought items for the RTK Surveyors.