gain master company profile development team contacts in costruzione sirio antenne
gain master logo
technical data the new reference in its class of antenna
gain master vs convention antenna

Gain-Master™ is a 0.625λ high tech fiberglass
base station antenna for wide band antenna from 10m to 12m* 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.

*12m band covered with manual or automatic antenna tuner.

Gain Master Vs. Conventional 5/8λ

vs conventional

Why Gain-Master™ has better performance compared to a conventional 5/8λ

Gain-Master™ has the highest available gain for 5/8λ antenna and due to its angle of radiation perfectly horizontal, can improve performance, better than competing antennas, at least 1-2dB, corresponding to 26%-58% more gain...

Read all


Technical Data


Type 0.625 λ center feeded vertical dipole
Frequency Range @ SWR ≤ 2.0 25.5 - 30 MHz wide band from 10m to 12m* 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
Ligthning protection All metal parts are DC-grounded, the inner conductor shows a
Connector UHF-female, PTFE insulator & gold plated central pin


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 using bracing rods (see Annex installation manual)
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