Overview

The TOXU TX-J-82M is a compact dual-band RTK GNSS positioning receiver developed for vehicle navigation, intelligent transportation, robotics, autonomous systems and precision agriculture.

The terminal combines a multi-system GNSS receiver, L1+L5 dual-band ceramic antenna, RTK positioning algorithms, navigation-algorithm support, communication interface, protective housing and 3 m cable in one integrated unit.

The TX-J-82M supports GPS/QZSS L1 C/A and L5, BeiDou B1I/B1C and B2a, and Galileo E1 and E5a signals. Its built-in antenna also covers GLONASS L1, IRNSS S-L5 and related supported navigation signals.

Under the specified open-sky test conditions, the receiver provides horizontal standalone positioning accuracy of less than 1.0 m CEP50. When used with a valid Qianxun FindCM high-precision correction service, it supports horizontal RTK positioning accuracy of less than 0.02 m CEP50.

The default communication interface is RS232. UART/TTL and USB 2.0 configurations are also supported, while the default six-pin connector configuration provides PPS output for time synchronization.

With a 5–36 V DC input range, IP67 protection, a 3 m cable and adhesive or magnetic mounting options, the TX-J-82M is suitable for integration into vehicle and industrial positioning equipment.

Key Features

L1+L5 Dual-Band GNSS Reception

Supports dual-band GNSS reception for improved satellite-signal availability and RTK positioning performance.

Multi-Constellation Satellite Support

Supports GPS, BeiDou, Galileo, GLONASS, QZSS, SBAS and IRNSS signals according to the specified receiver and antenna configuration.

Centimeter-Level RTK Capability

Supports horizontal RTK accuracy of less than 0.02 m CEP50 when valid high-precision correction data, suitable satellite visibility and correct system configuration are available.

Integrated Navigation Algorithm Support

Supports integrated navigation algorithms for applications requiring continued vehicle-positioning assistance. Detailed inertial-sensor configuration should be confirmed according to the ordered hardware version.

128 Tracking Channels

The receiver provides 128 tracking channels for supported multi-constellation GNSS signals.

Integrated Dual-Band Ceramic Antenna

Combines the GNSS receiver and a stacked four-feed ceramic antenna in one housing, reducing the need for a separate external GNSS antenna.

RS232 Communication Interface

The standard configuration uses an RS232 interface for connection to vehicle controllers, embedded computers and industrial navigation equipment.

UART/TTL and USB 2.0 Options

UART/TTL and USB 2.0 interface configurations are available for different system-integration requirements.

PPS Time-Pulse Output

The default six-pin configuration provides a PPS output for compatible systems requiring GNSS-based time synchronization.

Configurable Navigation Update Rate

Supports navigation update rates of 1 Hz, 5 Hz and 10 Hz for different positioning and dynamic-response requirements.

Fast Positioning Startup

Provides a specified cold-start time of 28 seconds, hot-start time of 1 second and assisted-start time of 3 seconds under the stated test conditions.

Qianxun Service Support

Supports Qianxun FindNow A-GNSS accelerated positioning and can use the FindCM high-precision correction service where service access and coverage are available.

5–36 V Wide-Voltage Input

The wide input-voltage range supports integration with vehicle and industrial power systems.

IP67 Protective Structure

The dustproof and waterproof housing provides IP67 protection for outdoor and vehicle-mounted applications.

Flexible Installation

Supports fixed installation using 3M adhesive or a magnetic base according to the selected product configuration.

Technical Specifications

Built-in Antenna Specifications

Interface Definition

MX3.0 Four-Pin Interface

MX3.0 Six-Pin Interface with PPS

Dimension Drawing

The TX-J-82M housing measures 67.5 × 67.5 × 18.9 mm. The standard cable length is 3 m.

Please refer to the supplied product drawing for the detailed housing profile, cable outlet and installation dimensions.

Applications

Vehicle Navigation

Provides dual-band GNSS and RTK position data for vehicle-navigation and positioning systems.

Intelligent Transportation

Supports integration into intelligent transportation terminals, vehicle monitoring equipment and road-data systems.

Robotics

Provides positioning data for compatible outdoor robots and autonomous mobile platforms.

Autonomous Systems

Can be connected to compatible vehicle controllers and embedded computers requiring RTK GNSS position output.

Precision Agriculture

Suitable for agricultural guidance, machine positioning and other GNSS-based precision agriculture equipment.

System Integration

The TX-J-82M combines satellite-signal reception, RTK positioning, navigation-algorithm support and serial communication inside one IP67-protected terminal.

A typical system connection is:

GNSS Satellites → Built-in L1+L5 Antenna → TX-J-82M RTK Receiver → RS232/UART/USB Interface → Vehicle Controller or Embedded Host → Navigation System

For RTK operation, the receiver must obtain valid correction data through a compatible correction service or communication link.

A typical RTK correction path is:

Qianxun FindCM or Compatible Correction Service → Communication Link → TX-J-82M → RTK Position Output

Before installation, customers should confirm the selected interface, connector pinout, input voltage, baud rate, PPS requirement, output protocol and correction-service compatibility.

RTK accuracy depends on satellite visibility, correction-data quality, service coverage, antenna installation, multipath conditions and system configuration.

Complete GNSS Solution Support

GNSS Antenna Matching

TOXU provides ceramic antennas, patch antennas, vehicle antennas and multi-band RTK antennas for different positioning and installation requirements.

RF Cable Assembly

TOXU provides customized RF and signal cable assemblies with different cable lengths and connector options.

Connector Solution

TOXU supports connector selection and customized interconnection solutions according to the receiver and host-equipment interfaces.

GNSS Board Development

TOXU can integrate GNSS modules into customized receiver boards according to customer interface, power-supply and mechanical requirements.

Hardware Customization

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

Why Choose TOXU

Complete RTK Hardware Integration

TOXU provides GNSS modules, receiver boards, integrated terminals, antennas, cables and connectors for complete positioning-system integration.

Vehicle Application Support

The 5–36 V input, RS232 interface, IP67 housing and flexible installation options support vehicle and industrial integration.

OEM and ODM Customization

Customization can be evaluated for communication interfaces, connector pinouts, cable lengths, mounting methods, labeling and packaging.

Prototype-to-Production Service

TOXU supports sample verification, component sourcing, PCB assembly, 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: Is the TX-J-82M only a GNSS antenna?

No. It is an integrated RTK GNSS receiver containing a positioning module, dual-band antenna, RTK algorithms, communication interface and protective housing.

Q: Which GNSS frequency bands does it support?

It supports L1 and L5 GNSS bands, including GPS/QZSS L1 C/A and L5, BeiDou B1I/B1C and B2a, and Galileo E1 and E5a signals.

Q: What RTK accuracy does the receiver provide?

The specified horizontal RTK accuracy is less than 0.02 m CEP50 when used with valid high-precision correction data under the stated operating conditions.

Q: Can it provide positioning without an RTK correction service?

Yes. The receiver can provide standalone GNSS positioning without RTK correction data. The specified standalone horizontal accuracy is less than 1.0 m CEP50 under the stated test conditions.

Q: Does the product include an antenna?

Yes. It includes a built-in stacked four-feed dual-band ceramic GNSS antenna.

Q: Does the TX-J-82M support inertial navigation?

The product specification states support for integrated inertial-navigation algorithms. The exact inertial-sensor configuration and behavior during GNSS signal interruption should be confirmed for the ordered hardware version.

Q: Which communication interface is supplied by default?

The standard interface is RS232. UART/TTL and USB 2.0 configurations are also supported according to project requirements.

Q: Does the receiver provide PPS output?

Yes. PPS output is available through the default MX3.0 six-pin connector configuration.

Q: Can it operate from a vehicle power supply?

The receiver supports a 5–36 V DC input. Customers should still confirm the vehicle power environment and required transient-protection design before installation.

Q: Is the receiver waterproof?

The housing is specified with an IP67 protection rating when correctly installed and connected.

Q: Can the cable and connector be customized?

Yes. TOXU can evaluate customized cable lengths, connector configurations and pin definitions according to the customer’s equipment interface.

Q: Can TOXU provide customized GNSS solutions?

Yes. TOXU provides complete GNSS hardware integration services, including customized receiver boards, GNSS antennas, cable assemblies, connectors and PCB hardware development.

Q: Can TOXU support prototype development and mass production?

Yes. TOXU supports prototype development, component sourcing, PCB assembly, product integration and mass-production delivery.