Overview

The TOXU TX-K803-EK0407 is an OEM receiver board combining a K803 GNSS module with an EK0407 adapter PCB. It gives equipment manufacturers a board-level platform for evaluating RTK positioning, inertial integration and host communication.

The K803 platform supports multi-constellation, multi-frequency GNSS reception, including GPS L1/L2/L5, BeiDou B1/B2/B3 and Galileo E1/E5 signals. With compatible correction data and suitable antenna reception, the module can compute centimeter-level RTK positions.

The GNSS/INS configuration uses onboard inertial measurements alongside satellite observations. Developers can evaluate navigation behavior under changing reception conditions while accounting for mounting orientation, initialization and the motion characteristics of the platform.

The EK0407 adapter exposes serial and timing connections through an OEM interface footprint. It is intended for integration into a host system with the required power supply, RF connection and communication wiring.

Key Features

Multi-Frequency Satellite Tracking

The K803 receiver processes signals from several GNSS constellations and frequency bands. A matching multi-band antenna lets the receiver use the signals selected for the application.

RTK Rover Integration

Deliver compatible correction data to the receiver through the host system or an external data link. The host can use the resulting position and solution status for navigation or georeferenced measurement.

GNSS and Inertial Measurements

The inertial-navigation configuration supports evaluation of fused GNSS and IMU data. Rigid installation and correct sensor-axis alignment are part of the integration process.

Three LVCMOS Serial Interfaces

The EK0407 platform provides serial access for compatible embedded hosts and correction-data connections. Match the logic levels and configured messages to each connected device.

PPS and Event Interfaces

PPS provides a timing reference for compatible host hardware. Event inputs support timestamping of external triggers for applications such as mapping and synchronized data acquisition.

OEM Adapter Board Layout

The 46 × 71 mm EK0407 format combines four mounting holes with a 2 × 12 interface footprint. The configuration shown has unpopulated interface and RF connector footprints for integration into a project-specific assembly.

Technical Specifications

The RTK accuracy figures are published module specifications. Installed performance depends on antenna quality, satellite visibility, multipath, reference-station distance and correction quality. Inertial-navigation performance also depends on calibration, motion and the duration of reduced GNSS availability.

Hardware Structure

The K803 module occupies the central area of the adapter PCB. The host-interface footprint sits at one end, with RF connector footprints at the opposite end. Four corner mounting holes provide attachment points for a carrier plate or enclosure.

For inertial integration, mount the board rigidly and document the relationship between the marked sensor axes and the platform coordinate system. Include connector access, RF cable routing and board clearance in the mechanical layout.

Applications

Outdoor Robotics

Evaluate RTK position and inertial integration for outdoor robotic navigation and motion monitoring.

Surveying and Mapping Instruments

Pair position data and event timing with measurements collected by a custom mapping or survey instrument.

UAV Navigation Development

Integrate the receiver with a compatible host or flight-control system for positioning and data-recording evaluation.

Machine Guidance

Develop a positioning subsystem for agricultural or industrial equipment using a matched antenna and correction-data link.

System Integration

Multi-band GNSS antenna → TX-K803-EK0407 → Compatible host controller

Provide regulated power within the board's specified range and connect the host through a compatible LVCMOS serial interface. Match the antenna, RF connection and antenna power arrangement to the receiver installation.

For RTK rover operation, route compatible corrections from a reference station or correction service to the configured receiver port. For GNSS/INS evaluation, complete the required initialization and mounting alignment, then check navigation output under the expected motion and reception conditions.

Complete RF / GNSS Hardware Solution Support

TOXU can help select a multi-band GNSS antenna, RF cable assembly and connectors for the receiver. Share the host interface, antenna location, cable length and mechanical layout when requesting a quotation.

Why Choose TOXU

Receiver and RF Hardware Selection

Review the receiver, antenna and RF interconnects together before finalizing the carrier board and enclosure.

Prototype and Production Configuration

Define the module version, enabled functions and connector assembly during sample evaluation so the agreed configuration can be specified for repeat orders.

About TOXU

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

TOXU also provides PCBA manufacturing and OEM / ODM hardware integration services for RF and GNSS projects, from prototype assemblies through volume production.

FAQ

What is included in the TX-K803-EK0407 board?

The board combines a K803 GNSS module with an EK0407 adapter PCB. The configuration shown has unpopulated interface and RF connector footprints.

Does the receiver support RTK positioning?

Yes. The K803 module supports RTK positioning with compatible corrections, a suitable antenna and sufficient satellite reception for a fixed solution.

What is the role of inertial navigation?

In the inertial configuration, IMU measurements are combined with GNSS observations. Performance depends on initialization, installation alignment, platform motion and satellite availability.

Can the serial ports connect directly to RS232 equipment?

Use an appropriate level-conversion circuit when connecting the board's LVCMOS signals to an RS232 interface.

What are the PPS and event interfaces used for?

PPS provides a timing reference. Event inputs allow compatible external triggers to be timestamped by the receiver.

How is the board installed for inertial evaluation?

Use a rigid mounting arrangement and configure the sensor-axis alignment according to the supplied integration instructions.

Can TOXU supply matching antennas and cables?

Yes. Provide the required frequency coverage, antenna mounting arrangement, RF connector and cable length for selection.