SIRIO GAINMASTER FIBREGLASS BASE CB ANTENNA

Gain-Master Hi-Tech Fibreglass Base Station Antenna for CB & 10m Band.


Gain-Master™ is a 0.625λ high tech fiberglass
base station antenna for CB and 10m 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 completly manufactured in Italy with high quality materials.
The new design of the radiant element (Patent Pending) works like a central feeded 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.
Technical Data
ELECTRICAL DATA     
Type    0.625 λ center feeded vertical dipole
Frequency Range @ SWR ≤ 2.0    25.5 - 30 MHz 400 CB channel & 10m ham band
Impedance    50 Ω
Radiation    Omnidirectional
Polarization    Linear Vertical
Max Gain on the horizon    1 to 2 dB higher than conventional 5/8 λ
Max Power    500 Watts (CW) continuous, 1000 Watts (CW) short time
Ligthning protection    All metal parts are DC-grounded, the inner conductor shows a
DC-short
Connector    UHF-female, PTFE insulator & gold plated central pin
      

MECHANICAL DATA      
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.
Wind Resistance    up to 160 Km/h
Height (approx.)    7360mm with bracket, radiator 6850mm
Packaging Dimensions    1950 x 100 x 130 mm
Weight (approx.)    3 Kg
Mounting mast    Ø 35-54 mm side mast with “V” bolt