Antenna COALAS::MOXON-470-530

Model: COALAS::45-MOXON-470-530
Manufacturer: Coalas systems
Type: Moxon antenna

Brief Description and Purpose

The MOXON-470-530 antenna from Coalas systems is a compact and efficient directional Moxon antenna designed for operation in the 470–530 MHz UHF range. It combines ease of installation, low weight, and stable electrical characteristics across a wide operating range, making this model an excellent choice for amateur radio, engineering projects, and industrial applications requiring a directional antenna with moderate gain.

Technical Specifications

• Operating Frequency Band: 470 MHz – 530 MHz (VSWR < 1.4)
• Resonant Frequency: 480 MHz (VSWR = 1.076)
• Input Impedance: 50 Ohm
• Maximum Power: 7 W
• Gain: 6.5 dBi
• Beamwidth: horizontal - 70°; vertical - 105°
• Connector: RG316 (300 mm) + SMA Male
• Dimensions: 220 × 220 mm
• Weight: 80 g
• Mounting: included

The antenna has a low Voltage Standing Wave Ratio (VSWR) in the stated range, indicating quality tuning and minimal signal transmission losses. The resonant frequency of 480 MHz with a VSWR of 1.076 ensures efficient operation at the center frequency of the band. Thanks to its dimensions of 220×220 mm and weight of 80 g, installation on tripods, masts, or temporary structures is quick and requires no significant structural changes.

Advantages and Operating Recommendations

The antenna is particularly suitable for applications requiring directional radiation with moderate gain (6.5 dBi) to improve reception and transmission in conditions of moderate interference density. The integrated mounting and included RG316 connector with a length of 300 mm, combined with an SMA Male plug, ensure quick and convenient connection to a wide range of receivers and transmitters. It is recommended to use the antenna with transmitters up to 7 W, observe grounding rules, and standard installation recommendations for safety and optimal performance.

Small dimensions, relatively low weight, and moderate gain make the COALAS::MOXON-470-530 an ideal solution for field operations, mobile applications, and rapid deployment in project or service tasks. It is also suitable for engineering laboratories and test benches where compactness and parameter stability within 470–530 MHz are important.

Additionally: Fig. 1. VSWR values in the 460 MHz - 550 MHz range (information regarding the VSWR graph is provided in the manufacturer's source materials).

If you need a compact and reliable Moxon antenna for 470–530 MHz frequencies with a good size/gain ratio — the COALAS::MOXON-470-530 from Coalas systems is a well-considered and practical choice.

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