Overview

The TOXU KC.GA.00025 is an active external GNSS antenna designed for positioning, navigation, tracking, and timing equipment requiring GPS L1 and BDS B1 signal reception.

The antenna operates at GPS L1 1575.42MHz and BDS B1 1561MHz. Its integrated low-noise amplifier provides a specified active gain of 28dB for connection to compatible GNSS receivers that supply antenna power through the RF port.

The KC.GA.00025 uses a compact mouse-style housing measuring approximately 49.5 × 38 × 16.4mm. An integrated magnetic base enables convenient installation on compatible steel surfaces such as vehicle roofs, equipment cabinets, machinery housings, and test platforms.

The standard configuration includes a 5000±80mm RG174 coaxial cable and a TNC male connector. The extended cable length allows the antenna to be positioned away from the receiver while supporting flexible cable routing through vehicles, equipment cabinets, or industrial installations.

This product is a single-port active GNSS antenna. It does not contain a GNSS receiver and does not calculate position independently. Final positioning performance depends on the connected receiver, antenna power supply, installation position, satellite visibility, interference environment, and complete system design.

Key Features

GPS L1 and BDS B1 Signal Reception

Supports GPS L1 at 1575.42MHz and BDS B1 at 1561MHz for compatible satellite navigation receivers.

Active GNSS Antenna Design

The integrated LNA strengthens received GNSS signals before transmission through the coaxial cable.

28dB Specified Active Gain

Provides a specified active gain of 28dB for compatible powered GNSS antenna inputs.

VSWR of ≤2.0

The antenna has a specified VSWR of ≤2.0 at the supported GNSS frequencies under the defined test conditions.

Magnetic-Mount Installation

The integrated Φ18 × 2mm magnetic component supports temporary or permanent placement on compatible ferromagnetic surfaces.

5m RG174 Coaxial Cable

The standard 5000±80mm RG174 cable provides installation flexibility for vehicles, machinery, equipment cabinets, and external navigation terminals.

TNC Male RF Connector

The standard TNC male connector provides a secure threaded RF connection to compatible GNSS receivers and terminals.

Compact External Housing

The approximately 49.5 × 38 × 16.4mm housing is suitable for applications requiring a compact external GNSS antenna.

Wide Operating Temperature Range

The specified operating temperature range of -40°C to +85°C supports use in demanding outdoor and industrial environments, subject to final application validation.

OEM Configuration Support

Cable length, cable type, connector series, connector gender, label, packaging, and RF configuration can be evaluated according to customer requirements.

Technical Specifications

The available drawing specifies linear polarization and an omnidirectional radiation pattern. These two parameters should be reconfirmed against the latest approved RF test specification before volume production because GNSS ceramic antenna performance is affected by the antenna element, ground plane, housing, mounting surface, and test method.

The available material drawing does not specify the LNA noise figure, operating voltage, operating current, out-of-band rejection, IP protection rating, or detailed antenna-element gain. These parameters should not be added unless supported by an approved specification or test report.

Dimension Drawing

The standard KC.GA.00025 housing measures approximately 49.5±2mm in length, 38±2mm in width, and 16.4±2mm in height. The standard RG174 cable length is 5000±80mm, and the connector-end heat-shrink section is specified as 20±5mm.

The drawing and approved sample should be checked before finalizing cable-routing space, receiver connector selection, packaging, and equipment installation.

Applications

• GPS and BDS Navigation Terminals

• Vehicle Positioning and Navigation Equipment

• Fleet Management Terminals

• Asset Tracking Equipment

• Telematics Control Units

• Industrial Positioning Systems

• Construction and Agricultural Machinery

• Marine and Land-Based Navigation Equipment

• Remote-Monitoring Terminals

• GNSS Timing and Synchronization Equipment

• External GNSS Receiver Inputs

System Integration

The KC.GA.00025 is an active antenna containing an integrated LNA. It should be connected to a GNSS receiver input capable of supplying the required antenna bias voltage through the RF cable.

The available drawing does not specify the operating voltage or current. These electrical parameters must be confirmed before connecting the antenna to a receiver, module, evaluation board, or customer-designed PCBA.

The connected receiver must support GPS L1 1575.42MHz and/or BDS B1 1561MHz. The antenna itself does not add satellite-system compatibility to a receiver that does not support the corresponding signal.

The 5m RG174 cable provides flexible installation but also introduces RF transmission loss. The integrated LNA helps compensate for cable loss, while final received-signal performance still depends on the receiver design, cable routing, connector condition, and installation environment.

For magnetic installation, the antenna should be placed on a clean, flat, and compatible ferromagnetic surface. The mounting surface may affect the antenna ground condition and RF performance.

The antenna should be positioned with the housing facing upward and with a suitable view of the sky. Installation beneath metal covers, inside shielded enclosures, or close to high-power transmitters may reduce positioning performance.

The standard connector is TNC male. The receiver must use a mechanically and electrically compatible TNC female antenna port, or a suitable RF adapter must be selected.

This antenna does not provide L2 or L5 reception and should not be described as a multi-frequency RTK antenna. RTK capability depends on the receiver, supported GNSS frequencies, correction data, firmware, and complete positioning system.

Final RF and positioning performance should be verified on the customer’s finished equipment before volume production.

Why Choose TOXU

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

Our product range includes GPS and GNSS antennas, multi-frequency RTK antennas, automotive combination antennas, cellular antennas, WiFi and Bluetooth antennas, RF cable assemblies, RF connectors, PCBA manufacturing, GNSS modules, receiver boards, and integrated positioning solutions.

With IATF16949 and ISO9001-certified manufacturing capabilities, TOXU supports customized cable lengths, connector types, antenna housings, labels, packaging, RF testing, quality control, and stable delivery for overseas B2B projects.

FAQ

Q: Which GNSS signals does the KC.GA.00025 support?

A: It supports GPS L1 at 1575.42MHz and BDS B1 at 1561MHz.

Q: Is the KC.GA.00025 an active or passive antenna?

A: It is an active GNSS antenna with an integrated low-noise amplifier.

Q: What is the specified active gain?

A: The available drawing specifies 28dB active gain. It should not be interpreted as 28dBi passive antenna-element gain.

Q: What cable is included?

A: The standard configuration uses RG174 coaxial cable with a length of 5000±80mm.

Q: What connector does the standard antenna use?

A: The standard configuration uses a TNC male connector.

Q: How is the antenna installed?

A: It uses an integrated magnetic base for installation on compatible ferromagnetic surfaces.

Q: What are the housing dimensions?

A: The housing measures approximately 49.5±2 × 38±2 × 16.4±2mm.

Q: Does the antenna support RTK?

A: It supports GPS L1 and BDS B1 only. It is not a multi-frequency L1/L2/L5 RTK antenna, and the antenna itself does not calculate an RTK position.

Q: Does the antenna require power?

A: Yes. Its integrated LNA requires bias power from a compatible GNSS receiver. The exact voltage and current must be confirmed before integration because they are not specified in the available drawing.

Q: Is the KC.GA.00025 waterproof?

A: The available drawing does not provide an IP protection rating. Waterproof or IP claims should only be made after confirmation through an approved specification or environmental test report.

Q: Can the cable and connector be customized?

A: Yes. Cable type, cable length, connector series, connector gender, label, and packaging can be evaluated according to project requirements.