Ground Plane colinear dual-band antenna for base station service working on the radio-amateur frequency of 2m/70cm. The radial whip is of brass inserted in a conic fiberglass tube for a perfect protection from the worst climates and the radials are of stainless steel to get the maximun strength. They are supplied with a solid aluminium bracket for an easy installation on the support mast.Works for for VHF 143-149 MHz, UHF 440-450 MHz.
- Brand: Sirio Antenna
- Model: sa270mn
- Dimensions: 4.00" h x 4.00" w x 74.00" l, 4.00 pounds
- Base station antenna, Omnidirectional Dual-band VHF Low-gain, UHF High-gain Protection from static discharges DC-Ground Stainless steel hardware and radials Equipped with anodized aluminium bracket for an easy side mast installation High quality whip made of brass and copper protected by fiberglass tube
- Type: VHF: 6/8 wave colinear UHF: 3 x 5/8 wave colinear Frequency range @ SWR <= 2: VHF 143-149 MHz, UHF 440-450 MHz, Impedance: 50 Ohms, Radiation (H-plane): 360° omnidirectional Radiation (E-plane): VHF: beamwidth @ -3 dB = 61° UHF: beamwidth @ -3 dB = 30° Radiation angle: 0° Polarization: linear vertical
- Gain: VHF: 2 dBd - 4.15 dBi UHF: 4.2 dBd - 6.35 dBi Max. power (CW) @ 30°C: 200 Watts Grounding protection: all metal parts are DC-grounded, the inner conductor is coupled capacitively Connector: N-female, gold plated central pin
- Materials: Fiberglass, Aluminium, Brass, Stainless Steel Wind load / resistance: 56 N @ 150 Km/h / 180 Km/h Wind surface: 0.05 m² Height (approx.): 1780 mm Weight (approx.): 900 gr Radial length (approx.): 170 mm Mounting mast: Ø 35-54 mm
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