Sirio GPA 40-70

GPA 40-70

1/4 wave Ground Plane antenna for base station service working on 40-70 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.

Specifications :-

• Type:     1/4 wave ground plane
• Radiation:     Omnidirectional
• Polarization:     Linear vertical
• Frequency range:   40-70 MHz Tunable
• Bandwidth:    3.7MHz @ SWR  2
• Max Power - 1000w (CW)
• Connector:     UHF-female (SO-239)

Electrical Data :-

• Type : 1/4 wave Ground Plane
• Frequency Range : 40-70 MHz tunable by diagram
• Impedance : 50 Ohms Unbalanced
• Radiation (H-plane) : Omnidirectional
• Radiation (E-plane) : Beamwidth at -3 dB = 86o
• Radiation angle deg. : 0o
• Polarization : Vertical
• Gain : 0 dBd - 2.15 dBi
• Bandwidth at V.S.W.R. 2:1 : 3.5 MHz at 40 MHz
• V.S.W.R. at res. freq. : less than 1.2 : 1
• Max Power : 1000 Watts
• Feed System / Position : Direct / Center
• Connection : UHF Female
• Mechanical Data :-
• Materials : Aluminium, Chromed Brass, Nylon, Stainless Steel
• Wind Load / Resistance : 85 N at 150 Km/h / 150 Km/h
• Wind Surface : 0.07 m2
• Height (approx.) : 3200 mm
• Weight (approx.) : 935 gr
• Radial Length (approx) : 1800 mm
• Mounting Mast Diameter :-  35-40 mm

• Info Sheet