Sirio Gain-Master 5/8 Wave Vertical Base Antenna.




Gain-Master: Is a 0.625λ high tech fiberglass base station antenna for wide band from 10m to 12m* CB and Amateur band.
Completely designed by electromagnetic simulation to achieve the maximum gain and optimize the radiation pattern and bandwidth.
Engineered with the most advanced available technologies it is completely manufactured in Italy with high quality materials.
The new design of the radiant element (Patent Pending) works like a central fed dipole so all RF currents on the radiator are in-phase and 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.
Made of telescopic fiberglass tubes, it is DC-grounded for the best protection from static discharges.
Gain-Master: Is the new reference standard in its class of antennas.

Key Features/Specifications:
Base Antenna: 26-28MHz
Telescopic Fibreglass Tubes Construction
Type: 0.625 wave centre fed vertical dipole
Impedance: 50Ohms
Radiation: Omnidirectional
Polarization: Linear Vertical
Max Gain on Horizon: 1-2 dB higher than conventional 5/8th wave
Max Power: 500 watts CW continuous / 1000 watts short time
Lightning Protection: All metal parts are DC grounded, inner conductor shows DC-Short
Connector: UHF Female PTFE Insulator, and gold plated centre pin.
Composition: White Fibreglass tube radiator / Stainless Steel Hardware
Wind Resistance: Up to 160km/h
Length: 7360mm with bracket / radiator 6850mm
Packing dimensions: 1950 x 110 x 120mm
Weight: 3kg
Mounting Mast: 35-54mm.
Materials: Whip made of white fiberglass four sections composite tube,
radiator made of copper wire and low loss coax cable,
stainless steel hardware, anodized AW6060 aluminium, UV
stabilized thermoplastic.