Sirio SB 3 M VHF Marine Antenna

3/4 λ marine antenna working on 156-163 MHz without Ground Plane. It is particularly protected against the worst sea weather thanks to its conic glass fibre tube which makes it strong and solid in every situation.

The radial whip is earthed in order to avoid stray R.F. currents and their discharges. All its metallic components are of chromium plated brass and stainless steel to get the robustness and full assurance; it is available in three different bases. It is provided with 5 m white cable RG 58 already connected. In the mentioned range of frequencies adjustments  are not required.

Technical specifications:

Frequency range: 156-163 MHz
SWR: better than 1:2
Gain: 2 dBd - 4.15 dBi
Maximum power: 100 W
Electrical length: 3/4 λ J-pole
DC grounded
Impedance: 50 ohms
Cable: 5 m (16.4 ft) / Low loss without connector
Length: 148 cm
Weight: 550 g