Overview

The TOXU TX-ZED-F9P-04B-MINI is a compact RTK GNSS receiver board equipped with the u-blox ZED-F9P-04B-01 module. It is intended for equipment manufacturers developing an embedded positioning system around an external GNSS antenna and a host controller.

The module tracks GPS L1 and L2, Galileo E1 and E5b, BeiDou B1I and B2I, and supported GLONASS and QZSS signals. The external antenna can be positioned separately from the receiver PCB, giving designers room to work around enclosure, cable routing and antenna placement constraints.

A compatible RTCM stream from an RTK reference station or correction service enables the module to compute a fixed RTK solution when satellite reception and correction quality are suitable. The host can use the receiver's position output for navigation, guidance or georeferenced data collection.

Key Features

Dual-Frequency GNSS Reception

The ZED-F9P-04B-01 uses observations from two frequency ranges to support RTK processing. An antenna covering the signals selected for the application lets the receiver use both ranges.

RTCM 3.3 Correction Support

The module accepts compatible RTCM 3.3 messages. System designers can deliver corrections through an existing radio link or through a host that receives a network correction stream.

External Active Antenna Integration

An external active antenna can be placed above the equipment or at another suitable location with good sky visibility. Match its frequency coverage, RF connector and bias requirements to the receiver installation.

NMEA and UBX Message Support

NMEA supports integration with software that expects standard GNSS messages. UBX gives compatible software access to u-blox configuration and receiver status messages.

Four-Point PCB Mounting

Four corner mounting holes give mechanical designers defined points for securing the board. The threaded RF connector projects beyond the PCB edge, where clearance can be reserved for the mating connector and cable.

Technical Specifications

The accuracy figures are published by u-blox for the ZED-F9P-04B module under its specified test conditions. Installed performance depends on antenna placement, satellite visibility, multipath, distance to the reference station and the quality of the correction stream.

Hardware Structure

The ZED-F9P-04B-01 module is centered on the PCB. Two board headers sit along one edge, opposite a right-angle threaded RF connector and a miniature coaxial connector. When planning the enclosure, allow clearance for the mating harnesses, coaxial cable bend radius and four mounting points.

Applications

UAV Navigation

Integrate RTK position data into a compatible flight-control system with a separately mounted GNSS antenna.

Outdoor Mobile Robots

Supply position updates to a robot controller for outdoor route following and waypoint navigation.

Precision Agriculture Equipment

Prototype positioning subsystems for guidance or field data collection on agricultural platforms.

Surveying and Mapping Hardware

Add an RTK rover receiver to custom instruments that pair location data with survey observations or mapping records.

System Integration

External GNSS antenna → TX-ZED-F9P-04B-MINI → Host controller

Mount a compatible active GNSS antenna with a clear view of the sky and connect it to the designated RF input. Use the board's pinout to match the supply voltage, host interface and logic levels before wiring. Configure the host to read the required NMEA or UBX messages.

For rover operation, forward compatible RTCM corrections from a base station or a host running an NTRIP client. Use the receiver's solution status to distinguish standalone, RTK float and RTK fixed positions during system testing.

Complete RF / GNSS Hardware Solution Support

TOXU can help specify the external GNSS antenna, RF connectors and coaxial cable assembly for this board. Share your antenna mounting location, available cable space and required cable length so the receiver and RF interconnects can be selected together.

Why Choose TOXU

RF Hardware Selection for OEM Systems

TOXU can review the antenna, cable and connector requirements alongside the receiver layout before the enclosure and harness design are finalized.

Prototype and Volume Manufacturing Support

Discuss project-specific harnesses, RF cable assemblies and PCBA integration for evaluation builds and volume orders.

About TOXU

TOXU Tech supplies GNSS positioning hardware, GNSS and communication antennas, RF connectors and coaxial cable assemblies to equipment manufacturers and system integrators.

TOXU also provides PCBA manufacturing and OEM / ODM integration services for customers developing and producing RF or GNSS equipment.

FAQ

Which u-blox module is installed on the board?

The TX-ZED-F9P-04B-MINI uses the u-blox ZED-F9P-04B-01 module.

Which GNSS signals should the antenna cover?

Select an active dual-frequency antenna that covers the signals required for the project, such as GPS L1 and L2, Galileo E1 and E5b, and BeiDou B1I and B2I. Check antenna bias requirements and connector compatibility before ordering.

What does the board need for centimeter-level RTK positioning?

Use a compatible active GNSS antenna, a valid RTCM correction stream and a site with suitable satellite visibility. Check that the receiver reports a fixed RTK solution.

Can the receiver provide a position without RTCM corrections?

Yes. The module can provide a standalone GNSS position. Centimeter-level RTK positioning requires a valid correction stream and a fixed solution.

How can the system receive NTRIP corrections?

Run an NTRIP client on a compatible host or communications device, then forward the RTCM messages to the receiver through the configured data interface.

Can the board be integrated with a UAV flight controller?

Integration depends on the host interface, pinout, logic voltage and GNSS message support. Share the flight controller model and harness requirements so the connection can be reviewed.