Overview

The TOXU TX-G99 is a 3-in-1 external combination antenna integrating one active GNSS antenna, one passive wide-band cellular antenna, and one passive 2.4GHz WiFi/Bluetooth antenna into a compact low-profile housing.

The active GNSS section supports GPS L1 at 1575.42MHz and BDS B1 at 1561.098MHz. It provides 28±3dB active gain and a noise figure of ≤1.5dB for connection to compatible active-antenna GNSS receiver inputs.

The cellular antenna section covers 690-960MHz and 1710-2700MHz. It is suitable for compatible 2G, 3G, and 4G LTE communication modules operating within these frequency ranges.

The third antenna element operates at 2400MHz and provides a separate RF connection for compatible 2.4GHz WiFi and Bluetooth communication equipment.

By combining satellite positioning, cellular communication, and short-range wireless connectivity in one housing, the TX-G99 helps reduce the number of separately installed antennas required by vehicle telematics terminals, tracking devices, IoT gateways, industrial communication equipment, and mobile data terminals.

The standard configuration uses three 1500mm RG174 coaxial cables with SMA connectors. Cable length, connector series, connector gender, cable identification, and packaging can be evaluated according to the customer’s equipment interface and installation requirements.

Key Features

3-in-1 Combination Antenna

One active GNSS antenna, one passive cellular antenna, and one passive WiFi/Bluetooth antenna are integrated into one external housing.

GPS L1 and BDS B1 Reception

The GNSS section supports GPS L1 at 1575.42MHz and BDS B1 at 1561.098MHz for compatible positioning, navigation, and tracking receivers.

Active GNSS Signal Amplification

The integrated GNSS low-noise amplifier provides 28±3dB active gain with a noise figure of ≤1.5dB.

Wide-Band Cellular Coverage

The cellular antenna covers 690-960MHz and 1710-2700MHz for compatible 2G, 3G, and 4G LTE modules and terminals.

2.4GHz WiFi and Bluetooth Connectivity

A dedicated 2400MHz antenna element provides an independent connection for compatible 2.4GHz WiFi and Bluetooth equipment.

Three Independent RF Signal Paths

Separate coaxial cables are provided for GNSS, cellular, and WiFi/Bluetooth functions, allowing direct connection to the corresponding equipment ports.

Low-Profile External Housing

The compact external housing helps consolidate multiple antenna functions and reduce the number of separately mounted antennas required by the terminal.

Customizable Cable and Connector Configuration

Cable length, connector type, connector gender, cable identification, labels, and packaging can be evaluated according to customer drawings and equipment interfaces.

Technical Specifications

The 28±3dB value refers only to the active GNSS low-noise amplifier and must not be presented as the gain of the complete combination antenna. Connector gender, GNSS operating voltage, mechanical dimensions, environmental rating, installation method, and other unlisted parameters should follow the approved product specification and sample confirmation.

Applications

• Vehicle Telematics Terminals

• Fleet Management Systems

• Vehicle Tracking Devices

• Automotive Navigation Equipment

• 4G LTE Communication Terminals

• 2.4GHz WiFi and Bluetooth Gateways

• Industrial IoT Gateways

• Asset Tracking Equipment

• Remote-Monitoring Terminals

• Mobile Data Terminals

• Integrated Positioning and Communication Systems

System Integration

The TX-G99 provides three independent RF connections: one active GNSS connection, one passive cellular connection, and one passive WiFi/Bluetooth connection.

The cellular cable should be connected to the main antenna port of a compatible 2G, 3G, or 4G LTE communication module operating within 690-960MHz and 1710-2700MHz. The standard TX-G99 includes only one cellular antenna element and does not provide a second antenna path for LTE MIMO.

The WiFi/Bluetooth cable should be connected to a compatible 2.4GHz wireless module. The standard configuration includes only one WiFi/Bluetooth antenna element and should not be promoted as a dual-band WiFi or WiFi MIMO antenna.

The GNSS cable must be connected to an active-antenna-compatible GNSS receiver input. The receiver must provide the appropriate DC bias voltage through the coaxial cable to power the integrated GNSS low-noise amplifier. The required voltage should be confirmed against the approved product specification before connection.

The standard GNSS section supports GPS L1 and BDS B1 signals. The antenna does not calculate position and does not provide RTK capability by itself. Actual positioning performance depends on the connected receiver, software, satellite environment, antenna installation, and overall system design.

The GNSS, cellular, and WiFi/Bluetooth cables should be clearly identified before connection. Connector appearance alone should not be used to determine the RF port assignment.

The antenna should be installed in a suitable position with a clear satellite view for the GNSS section. Nearby metal structures, electronic modules, interference sources, and improper cable routing may affect antenna performance.

RF performance and isolation between the three antenna elements should be verified in the final equipment and installation environment before volume production.

Why Choose TOXU

TOXU provides combination antenna design, RF tuning, cable processing, connector integration, prototype verification, testing, and volume-production support for equipment manufacturers and system integrators.

Our product range includes GNSS antennas, 4G LTE and 5G NR antennas, WiFi and Bluetooth antennas, automotive combination antennas, embedded antennas, RF cable assemblies, RF connectors, PCBA manufacturing, GNSS modules, and receiver boards.

With IATF16949 and ISO9001-certified manufacturing capabilities, TOXU supports customized frequency combinations, cable lengths, connector types, cable identification, labels, packaging, RF performance verification, quality control, and stable delivery for overseas B2B projects.

FAQ

Q: Which antenna functions are integrated into the TX-G99?

A: The TX-G99 integrates one active GNSS antenna, one passive cellular antenna, and one passive 2.4GHz WiFi/Bluetooth antenna.

Q: How many RF cables does the TX-G99 have?

A: It has three independent RF cables for GNSS, cellular, and WiFi/Bluetooth connections.

Q: Which GNSS signals does the TX-G99 support?

A: It supports GPS L1 at 1575.42MHz and BDS B1 at 1561.098MHz.

Q: Is the TX-G99 an RTK antenna?

A: No. The standard TX-G99 supports single-frequency GPS L1 and BDS B1 signals and should not be promoted as an RTK antenna.

Q: Does the TX-G99 support 4G LTE?

A: Yes. Its cellular antenna covers 690-960MHz and 1710-2700MHz for compatible 4G LTE bands within these frequency ranges.

Q: Does the TX-G99 support LTE MIMO?

A: No. The standard configuration includes only one cellular antenna element. LTE MIMO normally requires at least two independent cellular antenna paths.

Q: Does the TX-G99 support WiFi and Bluetooth?

A: Yes. It provides one antenna element operating at 2400MHz for compatible 2.4GHz WiFi and Bluetooth equipment.

Q: Does the TX-G99 support 5GHz WiFi?

A: No. The available specification only identifies a 2400MHz WiFi/Bluetooth antenna path.

Q: Does the GNSS section require power?

A: Yes. The active GNSS section requires a compatible DC bias supply through the GNSS coaxial cable. The required operating voltage should be confirmed in the approved product specification.

Q: Do the cellular and WiFi/Bluetooth sections require power?

A: No. The cellular and WiFi/Bluetooth antenna elements are passive.

Q: What is the standard cable configuration?

A: The standard configuration uses three 1500mm RG174 coaxial cables.

Q: What connectors are used?

A: The available specification identifies SMA connectors for all three antenna paths. Connector gender and port assignment should be confirmed before ordering.

Q: Can the cable and connector configuration be customized?

A: Yes. Cable length, connector type, connector gender, cable identification, labeling, and packaging can be evaluated according to the equipment interface and project requirements.

Q: Is the TX-G99 waterproof or IP67 rated?

A: A waterproof or IP rating should only be stated after it has been confirmed in the approved product specification or corresponding test report.