Sirio WY 108-3N 108-137 MHz Air Band 3 Element Yagi Antenna
Base station antenna conceived by using an innovative feed system studied and applied to have highly symmetrical radiation pattern in both planes (E and H). It’s completely computer designed to get high performances of gain and front-to-back in the working band. All aluminium parts are protected by anodized treatment, hardware are of Stainless steel or zinc plated steel, mounting bracket is of extruded aluminium for the best strength and the connector is placed in rear position for an easily access. To increase the antenna gain please install it in vertical stacked array.
Features:
Base station antenna, DirectionalWide band, High-gainHighly symmetrical radiation pattern in both planes (E and H)Protection from static discharges DC-groundMade of anodized aluminium alloyStacked and bayed array for more gainOptional: tilting bracket for +-20°Electrical Data
Type: 3 elements yagi antennaFrequency range 108-137 MHz No tuning required
108-118 Mhz @ SWR <= 1.5
118-137 Mhz @ SWR <= 2.0 (air - ground communication)Impedance: 50ΩRadiation (H-plane): beamwidth @ -3 dB = WY 140-3N: 140°Radiation (E-plane): beamwidth @ -3 dB = 70°Front to back ratio: ≥ 12 dBPolarization: linear vertical or horizontalGain: 4.85 dBd - 7 dBiMax. Power (CW) @ 30°C: 200 WattsGrounding protection: All metal parts are DC-grounded, the inner conductor shows a DC shortConnector: N-female with rubber protection capMechanical Data
Materials: Anodized 6063-T5 Aluminium, EPDM rubber, thermoplastic UV stabilized, Chromed brassWind load / resistance: 114 N @ 150 Km/h / 160 Km/hWind surface: 0.071 m²Dimensions (L x W approx.): Dimensions (L x W approx.): 1400 x 910 mm / 4.59 x 2.99 ftWeight (approx.): 1860 gr / 4.1 lbTourning radius: WY 140-3N: 970 mmOperating temperature: -40° C to +60° CMounting mast: Ø 35-52 mm
