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Sirio GP 6-E 140 - 175 Mhz VHF Base Station Antenna

Sirio GP 6-E  140 - 175 Mhz VHF Base Station Antenna
2x5/8 λ Ground Plane base station colinear antenna for land and marine service. It works on the frequency range of 140-175 MHz by using the cutting diagram enclosed. The matching coil is DC feeded for a perfect protection from the static discharges. GP 6-E is made of non-corrosive aluminium and assembled on a very strong base of die-cast metal to get the maximum robustness and the best performance. Tuning is easy by following the attached directions.


  • Base station antenna, Omnidirectional
  • Medium-gain, Mono-band
  • Suitable for land and marine service
  • Tunable by whip cutting
  • Protection from static discharges DC-Ground
  • Made of aluminium alloy 6063 T-832
  • Side mast mounting allowed by optional bracket FT-3 code 2511301.00

    Electrical Data

  • Type: 2x5/8λ ground plane colinear
  • Frequency range: tunable 140...175 MHz
  • Impedance: 50Ω
  • Radiation (H-plane): 360° omnidirectional
  • Radiation (E-plane): beamwidth @ -3 dB = 30°
  • Radiation angle: 3.6°
  • Polarization: linear vertical
  • Gain: 3.8 dBd - 5.95 dBi
  • Bandwidth @ SWR ≤2: see diagram
  • SWR @ res. freq.: see diagram
  • Max. Power (CW) @ 30°C: 200 Watts
  • Grounding protection: All metal part are DC-grounded, the inner conductor shows a DC-short
  • Connector: UHF-female, gold plated central pin

    Mechanical Data

  • Materials: Aluminium, Brass, Nylon
  • Wind load / resistance: 46 N @ 150 Km/h / 120 Km/h
  • Wind surface: 0.04 m²
  • Height (approx.): 3060 mm
  • Weight (approx.): 750 gr
  • Radial length (approx.): 530 mm
  • Mounting mast: Ø 25-30 mm
  • Quantity: Reviews

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