Sirio - Gain Master HW 2024

The Sirio Gain Master HW is a fiberglass base station antenna for 10 to 11 meter band made of telescopic fiberglass tubes. Engineered with the most advanced available technologies it is completely manufactured in Italy with high quality materials. The design of the radiant element 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.

Frequency range: 27.2 - 30.0 MHz tunable (26.3 - 31.0 MHz ≤ 2.0)
2024 Update: new plastic reinforcement sleeve

Electrical Data:

Type: 1/2 λ center feed

Radiation: Omnidirectional

Polarization: Linear vertical

Frequency range: 27.2 ... 30 MHz Tunable

Systems: 10m-HAM

Gain: 0 dBd - 2.15 dBi

Bandwidth: ≥ 1.8MHz @ SWR ≤ 2

Max Power: 500 W (CW)

Connector: UHF-female (SO-239)

Mechanical Data:

Materials: Anodized Aluminium, Copper, Stainless steel, Fiberglass, Thermoplastic UV stabilized

Height (approx): 5560 mm / 18.24 ft

Weight (approx): 2600 gr / 5.73 lb

Mounting type: On-Mast