Sirio GPA 66-108 - 1/4W Ground Plane Antenna (4M/VHF)(66-108 MHZ Tunable)

1/4 wave Ground Plane antenna for base station service working on 66-108 MHz by means of the tuning diagram enclosed.

It is entirely made of non-corrosive aluminium and assembled on a strong die-cast base which allows an easy and safe installation assuring very good performance. Connector: UHF-female (SO-239)

Specifications:

Type: 1/4 wave ground plane Radiation: Omnidirectional Polarization: Linear vertical Frequency range: 66-108 MHz Tunable GPA 40-70: 3.7MHz @ SWR 2 Max Power - 500w (CW) Connector: UHF-female (SO-239)

Electrical Data:

Type : 1/4 wave Ground Plane Frequency Range : 66-108 MHz tunable by diagram Impedance : 50 Ohms Unbalanced Radiation (H-plane) : 360o Omnidirectional Radiation (E-plane) : Beamwidth at -3 dB = 86o Radiation angle deg. : 0o Polarization : Vertical Gain : 0 dBd - 2.14 dBi Bandwidth at V.S.W.R. 2:1 : 6.5 MHz at 66 MHz V.S.W.R. at res. freq. : less than 1.2 : 1 Max Power : 500 Watts Feed System / Position : Direct / Center Connection : UHF Female

Mechanical Data:

Materials : Aluminium, Chromed Brass, Nylon, Stainless Steel Wind Load / Resistance : 54 N at 150 Km/h / 150 Km/h Wind Surface : 0.05 m2 Height (approx.) : 1930 mm Weight (approx.) : 700 gr Radial Length (approx) : 1080 mm Mounting Mast Diameter : 35-40 mm