SIRIO GP 87-108 87-108 MHZ 1/4 WAVE GROUND PLANE ANTENNA, 1/4 λ Ground Plane wide-band antenna for base station service. It is made of aluminium and high-quality materials for the best efficiency and robustness. Its radial whip is earthed to be protected against static discharges. SPECIFICATIONS Electrical Data Type: 1/4 λ Folded Ground Plane Frequency Range GP 66-78 LB: 66-78 MHz at V.S.W.R.≤ 2:1 GP 76-88 LB: 76-88 MHz at V.S.W.R.≤ 2:1 Impedance: 50 Ω Unbalanced Radiation (H-plane): 360o Omnidirectional Radiation (E-plane): Beamwidth at -3 dB = 78o Radiation angle deg. : 0o Polarization: Vertical Gain : 0 dBd - 2.15 dBi Bandwidth at V.S.W.R. 2:1 GP 66-78 LB: 12 MHz GP 76-88 LB: 14 MHz V.S.W.R. at res. freq. : ≤ 1.2: 1 Max Power: 1000 Watts Feed System / Position: Direct DC-Ground / Center Connector GP 66-78 / 76-88 LB - U: UHF Female GP 66-79 / 76-88 LB - N: N Female Mechanical Data Materials: Anodized Aluminium, Nylon, Stainless Steel Wind Load / Resistance GP 66-78 LB: 98 N at 150 Km/h / 130 Km/h GP 76-88 LB: 85 N at 150 Km/h / 160 Km/h Wind Surface GP 66-78 LB: 0.09 m2 GP 76-88 LB: 0.07 m2 Height (approx.) GP 66-78 LB: 1640 mm GP 76-88 LB: 1400 mm Weight (approx.) GP 66-78 LB: 1930 gr GP 76-88 LB: 1710 gr Mounting Mast: ∅ 36-40 mm.