Sirio Gainmaster HW (half wave)

    Delivery time:1-2 Days
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Sold Out - discontinued

Gain-Master HW Hi-Tech Fibreglass Base Station Antenna for CB & 10m.
The Sirio Gain-Master™ HW is a 1/2λ high tech fibreglass base station antenna for CB and 10m amateur bands 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 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 fibreglass tubes, it is DC-grounded for the best protection from static discharges.

Gain-Master™ is the new reference standard in its class of antennas.

Instruction Manual: Download Instructions


– Base station antenna, Omnidirectional
– 0.5λ Center feed vertical dipole
– Low radiation angle for excellent DX
– Fiberglass 3 section composite tube

Electrical Data:

– 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

Mechanical Data:

– 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 / 18 feet
– Weight (approx.): 2600 gr / 5.7 lb
– Mounting mast: Ø 35-54 mm / Ø 1.4-2.1 in