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Sirio GPA 135-175  Mono Band Antenna
Sirio GPA 135-175  Mono Band AntennaSirio GPA 135-175  Mono Band AntennaSirio GPA 135-175  Mono Band Antenna

Sirio GPA 135-175 Mono Band Antenna

Ref:  32GPA135
Delivery:  Free Delivery in UK Mainland
Band:  Multi
Frequency RX:  135 - 175 MHz

Price:  £49.99




Sirio GPA 135-175 MHz Mono Band Base Antenna

The 'Sirio GPA 135-175' is a omidirectional low gain, mono band base station antenna. Suitable for land and marine service.

It works on the frequency range of 135-175 MHz by using the tuning diagram enclosed. The matching coil is DC feeded for a perfect protection from the static discharges. Sirio GPA 135-175 is made of non-corrosive aluminium and assembled on a very strong base of die-cast metal to get the maximun robustness and the best performance. Tuning is easy by following the attached directions.


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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

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