Overview

The TOXU TX-A191 is a narrowband UHF fiberglass omnidirectional antenna designed for compatible wireless communication, telemetry, remote monitoring, data transmission, and industrial radio equipment operating from 430MHz to 436MHz.

The antenna features 3 ±1dBi nominal gain, vertical polarization, 50Ω impedance, and a specified VSWR of ≤1.5 across its intended operating frequency range.

Its fiberglass-reinforced plastic radome provides mechanical protection for the internal antenna element and supports installation in suitable outdoor and industrial operating environments.

The TX-A191 uses an N male connector for direct connection to compatible 50Ω RF equipment, mounting hardware, coaxial cable assemblies, or surge-protection components.

The antenna body has a stated diameter of approximately 20mm and a length of approximately 500mm. The supplied drawing also shows a mounting structure; the exact standard delivery configuration should be confirmed before ordering.

The available measurement results show a gain of 2.7dBi and a VSWR of ≤1.274 for the tested sample. These results apply to the measured sample and should not be interpreted as guaranteed installed-system performance.

Actual performance depends on frequency matching, mounting position, surrounding metal structures, installation height, coaxial cable loss, connector condition, radio configuration, and the operating environment.

Key Features

430–436MHz Narrowband Coverage

Designed specifically for compatible UHF radio and wireless data equipment operating within the 430–436MHz frequency range.

3 ±1dBi Nominal Gain

The available specification states a nominal gain of 3 ±1dBi, with a measured result of 2.7dBi for the tested sample.

Omnidirectional Coverage

The vertically polarized antenna is intended to provide radio-frequency coverage around the antenna in compatible installation environments.

Fiberglass-Reinforced Radome

The gray fiberglass-reinforced plastic radome protects the internal antenna structure and provides a rigid external housing.

Low VSWR

The specified VSWR is ≤1.5 across the intended frequency range. The available test information reports a measured result of ≤1.274 for the tested sample.

N Male RF Connection

The standard N male connector supports connection to compatible 50Ω radio equipment, RF cable assemblies, mounting bases, or system accessories.

Compact 500mm Structure

The antenna body is specified as approximately Ø20 × 500mm, supporting integration where a compact UHF fiberglass antenna is required.

Project Customization Support

Frequency tuning, connector configuration, mounting hardware, product label, packaging, and matching RF cable assemblies can be evaluated according to project requirements and order quantity.

Technical Specifications

Dimension Drawing

The available drawing indicates an antenna body length of 500 ±10mm and an outer diameter of approximately 20mm.

The illustrated mounting structure shows a 65mm overall bracket length, a 60mm mounting-hole spacing, an 80mm bracket width, and an approximately Ø23mm connector-side structure.

Applications

• 430–436MHz UHF Radio Equipment

• Industrial Wireless Communication Systems

• Remote Monitoring and Telemetry Equipment

• Wireless Data Acquisition Systems

• Control and Automation Communication Equipment

• Private Radio Communication Networks

• Compatible IoT and M2M Terminals

• Base Stations and Fixed Wireless Terminals

• Security and Alarm Communication Equipment

System Integration

The TX-A191 can be integrated into compatible UHF communication equipment using the following configuration:

TX-A191 Antenna → N-Type RF Connection / 50Ω Coaxial Cable → 430–436MHz Radio or Wireless Data Terminal

Before integration, confirm that the connected transmitter, receiver, radio module, or gateway operates within the 430–436MHz frequency range and uses a compatible 50Ω RF interface.

An adapter or matching coaxial cable assembly may be required if the equipment does not use an N-type RF connector.

Install the antenna vertically and maintain suitable clearance from large metal objects, walls, motors, power converters, high-current wiring, and other potential interference sources.

Installation height, surrounding obstacles, terrain, transmitter power, receiver sensitivity, cable attenuation, connector loss, and local radio regulations can affect the final communication range.

If the supplied mounting bracket is required, confirm its hole spacing, installation orientation, fastener requirements, and compatibility with the intended pole, wall, cabinet, or supporting structure.

Sample testing with the actual radio equipment, cable assembly, mounting position, and operating environment is recommended before volume production.

Why Choose TOXU

TOXU supplies UHF and VHF antennas, fiberglass antennas, cellular antennas, GNSS antennas, Wi-Fi antennas, RF cable assemblies, coaxial connectors, communication modules, and receiver hardware for equipment manufacturers and system integrators.

Our team can assist with frequency confirmation, antenna selection, connector matching, mounting evaluation, coaxial cable configuration, sample verification, and system-integration support.

For volume-order projects, TOXU can evaluate customized frequency ranges, connector configurations, mounting structures, product labels, packaging, and matching RF cable assemblies.

With IATF16949 and ISO9001-certified manufacturing capabilities, TOXU supports antenna assembly, RF performance testing, cable processing, quality control, and stable volume-order delivery.

FAQ

Q: What frequency range does the TX-A191 support?

A: It is designed for compatible UHF communication equipment operating from 430MHz to 436MHz.

Q: Is the TX-A191 a 4G, 5G, or Wi-Fi antenna?

A: No. Its 430–436MHz operating range does not cover conventional 4G, 5G, or Wi-Fi frequency bands.

Q: Is it a cellular antenna?

A: No. It should be described as a narrowband UHF communication antenna rather than a cellular antenna.

Q: What is the antenna gain?

A: The nominal gain is specified as 3 ±1dBi. The available measurement result for the tested sample is 2.7dBi.

Q: What VSWR does the antenna provide?

A: The nominal specification is ≤1.5. The available test information reports a result of ≤1.274 for the tested sample.

Q: What connector does the TX-A191 use?

A: The standard product information specifies an N male connector.

Q: What are the antenna dimensions?

A: The fiberglass antenna body is approximately 20mm in diameter and 500mm long. The complete installed dimensions depend on the connector and mounting configuration.

Q: Is the mounting bracket included?

A: A bracket is shown in the available dimension drawing, but the standard package configuration should be confirmed before ordering.

Q: Is the antenna waterproof?

A: The current information identifies an FRP radome but does not provide a confirmed IP waterproof rating. A specific waterproof level should not be claimed without supplier confirmation or supporting test documentation.

Q: Can the frequency or connector be customized?

A: Frequency tuning, connector configuration, mounting hardware, labeling, packaging, and matching cable assemblies can be evaluated according to project requirements and order quantity.

Q: Can the antenna guarantee a specific communication distance?

A: No. Communication range depends on transmitter power, receiver sensitivity, installation height, cable loss, terrain, surrounding obstacles, interference, and local operating conditions.