Overview

The TOXU TX-G43 is a compact dual-band active ceramic GNSS antenna developed for UAVs, handheld terminals, radios, navigation equipment, and other space-constrained positioning systems.

The antenna covers two GNSS frequency ranges: 1168–1188MHz and 1559–1585MHz. This dual-band configuration supports connection to compatible GNSS receivers requiring reception in both the lower and upper satellite-navigation frequency regions.

The ceramic antenna element adopts right-hand circular polarization and has a nominal impedance of 50 ohms. Its specified gain at zenith is typically 1dBi when measured with a 70mm square ground plane.

An integrated low-noise amplifier provides 18±2dB gain with a noise figure of no more than 1.5dB. The active circuit operates from 1.8–3.6V DC and draws no more than 5mA.

The black housing measures Ø20 × 30.6mm and weighs approximately 15g. A threaded fastening structure and SMA male connector support compact external installation without an integrated coaxial cable.

The TX-G43 is an antenna assembly only. It receives and amplifies compatible GNSS signals but does not independently calculate coordinates, provide RTK corrections, determine positioning accuracy, or output navigation data. These functions are handled by the connected GNSS receiver.

Key Features

Dual-Band GNSS Frequency Coverage

Covers 1168–1188MHz and 1559–1585MHz for compatible dual-band satellite-navigation receivers.

Active 18±2dB Amplifier

The integrated amplifier strengthens received GNSS signals before transmission to the connected receiver.

Low Noise Figure

A specified noise figure of no more than 1.5dB supports low-noise amplification of compatible GNSS signals.

Low-Voltage Operation

The active circuit operates from 1.8–3.6V DC and consumes no more than 5mA.

RHCP Ceramic Antenna Element

The ceramic antenna adopts right-hand circular polarization for reception of compatible satellite-navigation signals.

Compact Ø20mm Housing

The small Ø20 × 30.6mm enclosure supports installation in UAVs, handheld equipment, radios, and compact positioning terminals.

Lightweight Construction

The antenna weighs approximately 15g, helping reduce the load added to compact and mobile equipment.

Threaded Fastening Structure

The antenna can be mechanically secured through the equipment panel using its threaded mounting structure.

SMA Male RF Interface

The standard SMA male connector supports direct connection to a compatible antenna port or RF adapter.

Environmental Verification

The supplied specification includes high-temperature, low-temperature, rain, and salt-spray test requirements.

Technical Specifications

Amplifier Specifications

Mechanical and Environmental Specifications

Dimension Drawing

The following mechanical drawing shows the principal dimensions of the TX-G43. All dimensions are expressed in millimeters.

General drawing tolerances are ±2mm for X dimensions, ±0.3mm for X.X dimensions, and ±0.05mm for X.XX dimensions. Dimensions and tolerances shown in the controlled mechanical drawing take precedence.

Confirm the latest controlled drawing before enclosure machining, tooling, or volume production.

Environmental Verification

High-Temperature Test

Samples are stored in a dry oven at 80°C for 48 hours. After visual inspection and 24 hours of recovery at room temperature, the housing must show no deformation or oxidation.

Low-Temperature Test

Samples are stored at -40°C for 48 hours. After recovery at room temperature, the housing must show no deformation, oxidation, or rust.

Rain Test

The product is exposed to running water for four hours. After the test, no water ingress is permitted at the bottom of the housing. This test description must not be interpreted as a certified IP protection rating.

Salt-Spray Test

The supplied specification defines salt-spray test conditions and requires no visible oxidation or corrosion after testing, rinsing, and drying.

Applications

• Unmanned Aerial Vehicles

• Handheld GNSS Terminals

• Portable Radios with Positioning Functions

• Compact Navigation Equipment

• Mobile Positioning Terminals

• Asset-Tracking Equipment

• Industrial GNSS Devices

• Remote-Monitoring Equipment

• OEM Positioning Systems

• Space-Constrained GNSS Integration

System Integration

The TX-G43 must be connected to a compatible GNSS receiver operating within the specified 1168–1188MHz and/or 1559–1585MHz frequency ranges.

Because the TX-G43 is an active antenna, the receiver must supply 1.8–3.6V DC bias power through the RF interface. The specified current consumption is no more than 5mA.

Before integration, confirm that the receiver antenna port uses a compatible SMA interface, 50-ohm impedance, supported frequency range, and suitable antenna-bias voltage.

The standard antenna uses an SMA male connector and does not include an integrated cable. If the equipment cannot accept a direct SMA male connection, a suitable 50-ohm RF cable assembly or adapter may be required.

A suitable ground plane and installation environment are important to antenna performance. The specified gain and axial-ratio values were measured using the ground-plane conditions stated in the specification; results in the final equipment may differ.

Install the antenna where it has the clearest practical sky view. Keep it away from large metal obstructions, high-power transmitters, motors, switching power supplies, and other possible sources of signal blockage or electromagnetic interference.

Final performance can be affected by the GNSS receiver, bias-power quality, mounting structure, ground-plane size, equipment enclosure, nearby electronics, and satellite visibility.

Sample testing with the actual receiver and complete equipment is recommended before volume production.

Why Choose TOXU

TOXU provides GNSS antennas, communication antennas, RF cable assemblies, connectors, GNSS modules, receiver boards, and integrated RF hardware for equipment manufacturers and system integrators.

Our engineering team supports frequency selection, receiver compatibility evaluation, antenna-bias confirmation, connector and cable matching, installation analysis, RF testing, sample verification, and customized antenna development.

With IATF16949 and ISO9001-certified manufacturing capabilities, TOXU supports prototype verification, product inspection, customized RF interconnections, OEM requirements, packaging, and stable volume-production delivery.

FAQ

Q: Which frequency ranges does the TX-G43 cover?

A: It covers 1168–1188MHz and 1559–1585MHz.

Q: Is the TX-G43 an active or passive antenna?

A: It is an active GNSS antenna with an integrated 18±2dB amplifier.

Q: What bias voltage does it require?

A: The specified operating voltage is 1.8–3.6V DC, with current consumption of no more than 5mA.

Q: What connector does the antenna use?

A: The standard TX-G43 uses an SMA male connector.

Q: Does it include an RF cable?

A: No. The connector is integrated into the antenna structure. A compatible RF adapter or cable assembly can be evaluated separately if required.

Q: What are the antenna dimensions?

A: The overall dimensions are Ø20 × 30.6mm, and the specified weight is approximately 15g.

Q: Is the antenna suitable for UAVs?

A: Its compact and lightweight structure supports compatible UAV positioning equipment. Final suitability must be verified using the actual receiver, installation structure, and operating environment.

Q: Does the antenna provide RTK positioning independently?

A: No. It receives and amplifies compatible GNSS signals. RTK processing, position calculation, correction-data handling, and navigation output are performed by the connected GNSS receiver.

Q: Does the rain test mean the antenna has an IP67 rating?

A: No. The specification describes a four-hour running-water test but does not declare a certified IP protection rating.

Q: Can TOXU help confirm receiver compatibility?

A: Yes. Please provide the receiver model, supported frequencies, antenna-bias voltage, connector interface, installation structure, and expected order quantity for evaluation.