The SparkFun NEO-D9S GNSS Correction Data Receiver is a satellite data receiver for L-Band correction broadcast. It can be configured for use with a variety of correction services including u-blox's PointPerfect satellite GNSS augmentation service, which provides homogenous coverage in the contiguous USA and Europe. With a clear view of the sky, especially a clear view to the South, it decodes the satellite transmission and outputs a correction stream, enabling a multi-band high-precision GNSS receiver (such as the u-blox ZED-F9P) to reach accuracies down to centimeter-level positioning without needing a separate RTK or NTRIP correction!

The board is equipped with a USB-C connector so you can hook the board to your laptop and configure the device using u-blox u-center if you want to. We've also equipped the breakout board with two Qwiic connectors, so you can connect it quickly and easily to your favorite development board and control it using our sophisticated u-blox GNSS Arduino Library. An SMA connector is included for a secure connection to an L-Band antenna. Power, I²C, UART1, UART2, and SPI are broken out to 0.1" spaced PTH pins. By connecting the NEO-D9S breakout to one of the ZED-F9P's communication ports, you will be able to know where your (or any object's) X, Y, and Z location is to better than an inch, without needing a separate correction source!

Please Note: PointPerfect L-Band correction service for the SparkFun GNSS Correction Data Receiver - NEO-D9S is currently only available in the USA's 48 contiguous states and the European Union shown in the coverage map below. More information on PointPerfect can be found here.



Accessories Required: This product requires a suitable L-Band antenna. The ANN-MB-00 GNSS Multiband Antenna (GPS-15192) won't work with Europe's PointPerfect L-Band correction service.

Choose a compatible antenna from our Hookup Accessories section below for L-Band correction in Europe. We've carefully selected accessories that work seamlessly with this service.

The SparkFun Qwiic Connect System is an ecosystem of I²C sensors, actuators, shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch, 4-pin JST connector. This reduces the amount of required PCB space, and polarized connections mean you can’t hook it up wrong.

• 1x USB Type C Connector
• 2x Qwiic Connectors
• Default I²C Address: 0x43
• Integrated SMA connector for use with L-Band antenna of your choice
• Concurrent reception with L-Band Satellite
• Receives L-Band
  • 1525 MHz to 1559 MHz
• Time to First Frame
  • <10s @ 2400bps
• User Data Rates
  • 600, 1200, 2400, 4800 baud
• Vehicle Dynamics
  • Dynamics: +/- 2g acceleration for all data rates (600 bit/s, 1200 bit/s, 2400 bit/s, 4800 bit/s)
  • Velocity: Up to and including 300 km/h
• Voltage: 5V or 3.3V but all logic is 3.3V
• Current Consumption (Acquisition & Tracking):
  • Peak: 130mA
  • Average: 35mA
• Power LED
• Jumpers
  • USB Shield
  • Power
  • 3v3 (for UART2 Port)
  • I²C Pull-Up Resistors
  • SPI
• Supports UBX protocols over UART or I²C interfaces
• Board Dimensions
  • 1.70" x 1.70" (43.2mm x 43.2mm)

SparkFun Resources

• Schematic
• Eagle Files
• Board Dimensions
• Hookup Guide
• Building a GPS System
• Arduino Library
  • NEO-D9S Code Example
  • NEO-D9S + ZED-F9P Code Example
• GitHub Hardware Repo

u-blox Resources

• Product Summary
• Datasheet (NEO-D9S-00B)
• NEO-D9S Integration Manual
• NEO-D9S Interface Description
• u-blox Service Terms for B2B Customers
• NEO-D9S and ZED-F9 configuration - SPARTN L-band correction data reception
• u-blox u-center - GNSS evaluation software for Windows
• PointPerfect GNSS augmentation service
• PointPerfect Product Summary
• PointPerfect Service Description
• PointPerfect Service Coverage
• Thingstream IoT service delivery platform
• Thingstream Login
• Thingstream Registration