Sirio Balcony 27 A 10m & CB Base Antenna CB Radio Balcony or temporary installation antenna  Omni-directional  Factory tuned at mid-band  Tuneable by length adjusting  Main whip made of aluminium alloy 6063 T-832 and tapered glass fibre radial with inside helical winding Type: 1/4 boomerang  Frequency range: 27-28.5 MHz  Impedance: 50O unbalanced  Radiation (H-plane): 360 omni-directional  Polarization: vertical  Gain: 0 dBd, 2.15 dBi Bandwidth at S.W.R. 2:1:  S.W.R. at res. freq.: = 1.2:1  Max. power : 200 Watts (CW) continuous, 600 Watts (CW) short time  Feed system / Position: Direct / centre  Connector: UHF-female Materials: Aluminium, Steel, Nylon, Glass fibre, Copper  Wind load : 33 N at 150 Km/h  Wind resistance: 140 Km/h  Wind surface: : 0.03 m Height (approx.) : 3670 mm  Weight (approx.) : 720 gr  Radial length (approx.): 1130 mm