Overview

The TOXU KS.WA.0074 is a complete dual-antenna RTK GNSS positioning and heading kit developed for UAVs, drones, robotics, autonomous vehicles and other precision navigation systems.

The kit combines a compact CNC aluminum RTK receiver, two L1+L2 active quadrifilar helical GNSS antennas, interface cables and a USB Type-C cable.

Based on the u-blox ZED-F9P platform, the KS.WA.0074 supports GPS, GLONASS, Galileo, BeiDou and QZSS satellite navigation systems across L1 and L2 GNSS bands.

When valid RTK correction data, suitable satellite visibility and correct system configuration are available, the receiver supports horizontal and vertical RTK positioning accuracy of 0.01 m + 1 ppm.

The two GNSS antennas form a fixed baseline for moving-baseline heading calculation. This allows the navigation system to obtain position and heading information without relying exclusively on a magnetic compass.

GNSS-based heading is suitable for UAVs and autonomous platforms operating near motors, electrical systems and metal structures that may affect conventional magnetic heading sensors.

USB Type-C, UART, TTL and I²C interfaces provide flexible connection options for compatible flight controllers, embedded computers and robotic control systems.

Key Features

Complete Dual-Antenna RTK Kit

The standard configuration combines the RTK receiver, two L1+L2 GNSS antennas and required connection cables in one system-integration package.

u-blox ZED-F9P RTK Platform

The receiver uses the u-blox ZED-F9P platform to provide dual-band, multi-constellation GNSS tracking and centimeter-level RTK positioning.

L1 and L2 Dual-Band Reception

The receiver and matched antennas support L1 and L2 GNSS bands for RTK position and heading applications.

Dual-Antenna Moving-Baseline Heading

Two GNSS antennas installed with a fixed and known baseline allow the system to calculate heading from carrier-phase measurements.

Reduced Dependence on Magnetic Compass Data

GNSS heading provides an alternative orientation source in environments where motors, cables and metal structures may disturb magnetic sensors.

Centimeter-Level RTK Positioning

Supports horizontal and vertical RTK accuracy of 0.01 m + 1 ppm when valid correction data and suitable operating conditions are available.

Sub-Degree Heading Performance

Supports specified moving-baseline heading accuracy of 0.4° with a 1 m antenna baseline and dynamic heading accuracy of 0.3° under suitable operating conditions.

Active Quadrifilar Helical Antennas

Two compact L1+L2 active quadrifilar helical antennas provide RHCP GNSS reception and are suitable for space-limited UAV and robotic platforms.

Multi-Constellation GNSS Tracking

Supports GPS, GLONASS, Galileo, BeiDou and QZSS satellite navigation systems.

184 Searching Channels

Provides 184 searching channels for supported multi-constellation and dual-band GNSS signals.

USB Type-C Interface

The USB Type-C interface supports receiver configuration, power input and data communication with compatible computers and host systems.

UART, TTL and I²C Communication

Multiple communication interfaces provide flexible integration with flight controllers, embedded computers and correction-data links.

UBX, NMEA and RTCM Protocols

Supports UBX configuration messages, NMEA navigation output and RTCM correction-data communication.

Up to 10 Hz Navigation Update

Supports a maximum navigation update rate of 10 Hz for dynamic positioning applications.

Compact CNC Aluminum Receiver

The receiver uses a compact 38 × 28 × 12.1 mm CNC aluminum housing for integration into UAV and industrial navigation systems.

Technical Specifications

Matched GNSS Antenna Specifications

Standard Kit Configuration

Applications

UAV Positioning and Heading

Provides centimeter-level RTK positioning and GNSS-based heading for compatible multirotor, fixed-wing and other unmanned aerial platforms.

Pixhawk and PX4-Based Systems

Supports integration with compatible Pixhawk flight controllers and PX4-based autopilot systems through the available communication interfaces.

Robotics

Provides precise outdoor position and heading information for autonomous robots and unmanned ground vehicles.

Autonomous Vehicles

Supports navigation systems requiring RTK position and orientation information in environments affected by magnetic interference.

RTK Base and Rover Systems

Can be configured for compatible base-station and rover applications when combined with suitable correction-data communication.

Industrial Precision Navigation

Suitable for embedded navigation equipment requiring compact antennas, centimeter-level positioning and heading output.

System Integration

The KS.WA.0074 uses two L1+L2 active quadrifilar helical antennas installed with a fixed and known baseline.

A typical system connection is:

Primary L1+L2 Helical Antenna + Secondary L1+L2 Helical Antenna → KS.WA.0074 RTK Receiver → USB/UART → Flight Controller or Embedded Computer → Position and Heading Output

For RTK operation, correction data must be delivered through a compatible base station, NTRIP service, telemetry radio or host controller.

A typical correction-data path is:

RTK Base Station or NTRIP Service → Communication Link → KS.WA.0074 → RTK Position and Heading Output

The two antennas should be mounted securely with the same orientation and a known baseline distance. Heading performance depends on baseline length, antenna alignment, satellite visibility, multipath conditions and receiver configuration.

Before installation, customers should confirm the antenna mounting direction, baseline length, connector definition, supply voltage, communication interface, baud rate, correction-data source and flight-controller configuration.

Complete GNSS Solution Support

Dual-Antenna Matching

TOXU provides matched L1+L2 quadrifilar helical antennas for dual-antenna RTK positioning and heading systems.

RF Cable Assembly

TOXU provides customized RF cable assemblies with different cable lengths and SMA, MMCX, MCX or other connector options.

Flight-Controller Connection Cables

TOXU can provide customized signal cables and connector configurations for compatible flight controllers and embedded host systems.

GNSS Board Development

TOXU can integrate u-blox ZED-F9P modules into customized receiver boards with project-specific dimensions and interfaces.

Hardware Customization

TOXU supports PCB design, prototype development, antenna matching, housing customization, cable assembly, system integration and mass production.

Why Choose TOXU

Complete Position and Heading Kit

The KS.WA.0074 combines the receiver, two matched GNSS antennas and connection cables in one system-integration package.

Compact UAV Integration

The compact receiver and helical antenna structure support installation on UAVs, robots and other space-limited autonomous platforms.

Matched Antenna and Receiver Solution

TOXU provides the receiver and antennas as a coordinated system, reducing the work required for component selection and RF matching.

Flexible System Configuration

Receiver interfaces, antenna configurations, RF cable lengths and flight-controller connection cables can be adjusted according to project requirements.

OEM and ODM Customization

TOXU supports customized receiver boards, housings, antenna structures, cables, connectors, labeling and packaging.

Prototype-to-Production Support

Our team supports prototype verification, component sourcing, PCB assembly, antenna matching, product integration and mass production.

Quality Management

TOXU operates under IATF 16949 and ISO 9001 quality-management systems to support consistent manufacturing and quality control.

FAQ – Frequently Asked Questions

Q: What is included in the KS.WA.0074 kit?

The standard configuration includes one RTK GNSS receiver, two L1+L2 active quadrifilar helical antennas, receiver connection cables and one USB Type-C cable. Final package contents should be confirmed when placing an order.

Q: What is the difference between KS.WA.0074 and KS.WA.0076?

The KS.WA.0076 is the receiver unit, while the KS.WA.0074 is a complete system kit supplied with two matched L1+L2 quadrifilar helical antennas and connection cables for dual-antenna positioning and heading applications.

Q: Why are two GNSS antennas required?

The two antennas form a fixed moving baseline. Carrier-phase measurements from the two antenna positions allow the system to calculate GNSS heading.

Q: Does GNSS heading require a magnetic compass?

Moving-baseline GNSS heading does not rely exclusively on a magnetic compass. This is useful in systems where motors and metal structures may disturb magnetic measurements.

Q: What antenna baseline is recommended?

The appropriate baseline depends on the required heading accuracy and available installation space. The antennas should be installed securely with a known distance and consistent orientation.

Q: Does the kit support centimeter-level positioning?

Yes. It supports horizontal and vertical RTK accuracy of 0.01 m + 1 ppm when valid correction data and suitable operating conditions are available.

Q: Do the included antennas support L5?

No. The standard KS.WA.0074 configuration uses L1+L2 antennas matched to the receiver’s specified L1 and L2 GNSS bands.

Q: Is the kit compatible with Pixhawk and PX4?

It is designed for integration with compatible Pixhawk and PX4-based systems. The connector pinout, voltage level, interface and firmware configuration must be confirmed before connection.

Q: Can the antenna and cable configuration be customized?

Yes. TOXU can evaluate customized antenna structures, RF cable lengths, signal cables, connectors and mounting accessories according to project requirements.

Q: Can TOXU provide customized RTK GNSS solutions?

Yes. TOXU provides RTK receivers, matched GNSS antennas, RF cables, connectors, customized receiver boards and complete hardware-integration support.

Pixhawk is referenced for compatibility demonstration only. The flight controller is not included unless separately specified.