Sirio CX 4-68 4M Antenna

Quality 3/4 wave coaxial J-pole type 4 Metre, Amateur Band, base antenna, designed to work between 68 and 73 Mhz. The 4 metre (70Mhz) Amateur band is much more active now, and this antenna will give great performance. Features: 4 Metre Base station vertical co-linear antenna Low ...Quality 3/4 wave coaxial J-pole type 4 Metre, Amateur Band, base antenna, designed to work between 68 and 73 Mhz.

The 4 metre (70Mhz) Amateur band is much more active now, and this antenna will give great performance. Features: 4 Metre Base station vertical co-linear antenna Low-gain, Omnidirectional Protection from static discharges DC-Ground Made of aluminium alloy 6063 T-832 Electrical Data: Type: 3/4 wave coaxial J-pole Frequency range: tunable 68...73 Mhz Full coverage of 4 metre Amateur Band Impedance: 50 Ohms Radiation (H-plane): 360° omnidirectional Radiation (E-plane): beamwidth @ -3 dB = 60° Radiation angle: 3° Polarization: linear vertical Gain: 2dBd - 4.15 dBi Bandwidth @ SWR 1:1.5: 1.7 MHz @ 68 Mhz SWR. @ res.

freq.1:1.2 Max. Power (CW) @ 30°C: 500 Watts Grounding protection: All metal parts are DC-grounded, the inner conductor shows a DC short Connector: UHF-female Mechanical Data: Materials: Aluminium, Brass, Stainless Steel, Nylon Wind load / resistance: 97 N @ 150 Km/h / 150 Km/h Wind surface: 0.08 m² Height (approx.): from 2700 to 3360 mm Weight (approx.): 1900 gr Mounting mast: Ø 35-42 mm