Sirio CX 440 - Omnidirectional Base station 446MHz antenna A good quality base antenna ideal for use on the PMR446 band. Wide bandwidth - the antenna can be used from 440-455MHz with no tuning required. Features: • Base station antenna, Mono-band • Omnidirectional • Protection from static discharges DC-Ground • Made of aluminium alloy 6063 T-832 Electrical data: • Type: 3/4λ coaxial J-pole • Frequency range 440-455MHz • Impedance: 50Ω unbalanced • Radiation (H-plane): 360° omnidirectional • Radiation (E-plane): beamwidth at -3 dB = 60° • Polarization: vertical • Gain: 2dBd - 4.15 dBi • Bandwidth at S.W.R. 2:1: 33.5 MHz • S.W.R. at res. freq.: ≤ 1.2:1 • Max. power: 250 Watts • Feed system / position: gamma match / base • Connector: N-female Mechanical data: • Materials: Aluminium, Brass, Steel, Nylon • Wind load / resistance: 25 N at 150 Km/h / 180 Km/h • Wind surface: 0.02 m2 • Height (approx.): 588 mm • Weight (approx.): 450 gr • Mounting mast: Ø 35-42 mm |