COALAS::YAGI-270-410 Antenna — for Ground Stations

Manufacturer: Coalas systems
Type: Antennas > Yagi Antennas
Model: COALAS::YAGI-270-410

This Yagi-type antenna is designed for efficient operation in the VHF/UHF range and is optimized for ground radio stations. It combines high sensitivity and compact dimensions, making it convenient for installation on masts, equipment enclosures, or DIN rails.

Technical Specifications

• Frequency Band: 270 MHz – 410 MHz (VSWR < 1.5)
• Resonant Frequency: 286 MHz (VSWR = 1.12)
• Input Impedance: 50 Ohm
• Maximum Power: 15 W
• Gain: 10 dBi
• Beamwidth: horizontal – 30°, vertical – 35°
• Connector: SMA Male + 600 mm RG316 cable
• Dimensions: 1130 x 490 mm
• Weight: 305 g
• Mast Mounting: ⌀30-60 mm
• DIN Rail Mounting

The antenna provides a stable 50 Ohm impedance and a low standing wave ratio in the operating band, ensuring minimal losses and reliable signal transmission/reception. With a gain of 10 dBi, the YAGI-270-410 increases communication range and channel stability in noisy environments.

Compact dimensions of 1130 x 490 mm and a weight of only 305 g simplify transportation and installation. The presence of mast mounting for diameters from 30 to 60 mm makes installation versatile for various types of supports. Additional DIN rail mounting allows the antenna to be integrated into industrial cabinets or equipment enclosures without additional adapters.

The antenna comes with a 600 mm RG316 cable with an SMA Male connector, ensuring convenient connection to most portable and stationary radio devices with a 50-ohm interface. The maximum permissible power of 15 W makes this model suitable for most ground applications where high-power transmitters are not required.

The YAGI-270-410 is ideal for tasks requiring beam directionality (horizontal width 30°, vertical 35°) — this allows energy to be concentrated in the desired direction and reduces the impact of side signals. The resonant frequency of 286 MHz with a VSWR of 1.12 guarantees high matching in the central part of the band.

This model is recommended for use in ground radio networks, industrial communications, monitoring systems, and other applications where compactness, reliability, and directional radiation are important.

If you are looking for a reliable Yagi antenna from Coalas systems with a wide operating band and convenient mounting options — the COALAS::YAGI-270-410 will be an excellent choice.

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