The 'Sirio GPA 135-175' is a omidirectional low gain, mono band base station antenna. Suitable for land and marine service.
Main Features:
Base station antenna, Mono-band
Omnidirectional, Unity gain
Made of aluminium alloy 6063 T-832
Tunable by whip length adjusting
Side mast mounting allowed by optional bracket FT-2 code 2510004.00
P/N 2101601.00 GPA 135-175
Electrical Data
Type: 1/4λ ground plane
Frequency range: tunable from 135 to 175 MHz
Impedance: 50Ω unbalanced
Radiation (H-plane): 360° omnidirectional
Radiation (E-plane): beamwidth at -3 dB = 86°
Radiation angle: 0°
Polarization: vertical
Gain: 0 dBd - 2.15 dBi
Bandwidth at V.S.W.R. 2:1: 13 MHz at 135 MHz
V.S.W.R. at res. freq.: ≤ 1.2:1 at start freq.
Max. power: 300 Watts
Feed system / position: direct / centre
Connection: UHF-female
Mechanical Data
Materials: Aluminium, Chromed brass, Nylon
Wind load / resistance: 29 N at 150 Km/h / 180 Km/h
Wind surface: 0.03 m²
Height (approx.): 960 mm
Weight (approx.): 520 gr
Radial length (approx.): 520 mm
Mounting mast: Ø 35-40 mm