Nevada Radio

Sirio GPA 40-70

4m/6m ground plane antenna

Price:

£44.95

 

Availability:

In Stock

Delivered in 1-2 Working Days

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Description

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
  • GPA 40-70:    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) : 360o 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

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