Sirio Gain-Master HW (Half Wave) Base CB Antenna



Sirio's new Gain Master HW (Half Wave) is a fibreglass omni-directional base station antenna for 10m and 11m amateur bands and is made up of telescopic fibreglass tubes. Engineered with the most advanced technologies it is completely manufactured in Italy, with high quality materials. The design of the radiant element works like a central fed dipole so all RF currents on the radiator are in-phase so the ground plane radials are not necessary. The coaxial coil at the bottom works like RF - choke for the optimum decoupling from mast and feeding line. Special Features: Base station antenna, Omnidirectional High tech fibreglass for 10m and 11m 0.5λ Center feed vertical dipole Low radiation angle for excellent DX Fiberglass 3 section composite tube Ground Plane Independent (No radials required) Technical Specifications: Type: 1/2λ Center feeded vertical dipole Frequency Range: Tunable from 27.2 to 30 MHz Gain: 0 dBd, 2.15 dBi Bandwidth @ SWR ≤ 2: ≥ 1800 KHz @ 27.2 MHz Max. power: 500 Watts (CW) continuous Connector: UHF-female, PTFE insulator & gold plated central pin Materials: Whip made of white fiberlass three section composite tube, Radiator made of copper wire and low loss coax cable, stainless steel hardware, anodized AW6060 aluminium, UV stabilized thermoplastic Height (approx.): 5560 mm / 11.2 feet with bracket Weight (approx.): 2.6kg / 5.7 lb Packaging Dimensions: 1950 x 100 x 130mm / 77 x 4 x 5" Mounting mast: Ø 35-54 mm / Ø 1.4-2.1" Wind Resistance: Up to 160km/h, 100mi/h

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