COALAS::YAGI-360-530 Antenna for Ground Station

COALAS::YAGI.140-180 — is a high-quality Yagi antenna from the Coalas systems brand, designed specifically for ground stations. It combines compact dimensions, reliable mechanical design, and optimal electrical characteristics for operation in the VHF range.

Key Features

• Operating frequency band: 143 MHz – 177 MHz (VSWR < 1.5)
• Resonant frequency: 157 MHz (VSWR = 1.22)
• Input impedance: 50 Ohm
• Maximum power: 15 W
• Gain: 8 dBi
• Beamwidth: horizontal - 60°, vertical - 60°
• Connector: SMA Male with RG316 cable, 900 mm long
• Dimensions: 1080 x 1020 mm unfolded; 1080 x 150 mm folded
• Weight: 500 g
• Mast mounting: ⌀30-60 mm diameter
• DIN rail mounting capability

The COALAS Yagi antenna demonstrates stable VSWR in the specified range, ensuring efficient transmitter and receiver operation with minimal loss characteristics. The 8 dBi gain and 60° beamwidth on both axes allow for directional coverage without significant expansion of side lobes, which is useful for ground access points and private radio communications.

The robust yet lightweight design (500 g) and compact folded dimensions make these antennas convenient for transport and installation in field conditions. The presence of an SMA Male connector and a 900 mm long RG316 cable ensures simple connection to equipment without additional adapters. The 50 Ohm input impedance is compatible with most modern radio stations and transmitters.

This antenna is suitable for use in ground stations, amateur networks, industrial communication systems, and other projects requiring reliable directional radiation in the 143–177 MHz range. Mast mounting with a diameter of 30 to 60 mm and the option for DIN rail mounting add flexibility for installation on various structures.

Brand: Coalas systems. Product type: Antennas > Yagi Antennas.

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