Sirio GPA 135-175 Ground Plane Antenna


Enhance your communication capabilities with the Sirio GPA 135-175 Ground Plane Antenna. This omni-directional mono-band base station antenna offers superior performance and durability for land and marine services. With features like tunable whip length adjustment and optional side mast mounting, this antenna is perfect for frequencies ranging from 135 to 175 MHz.


Introducing the Sirio GPA 135-175 Ground Plane Antenna, a top-of-the-line omni-directional low-gain mono-band base station antenna suitable for both land and marine service applications. Crafted with precision and quality, this antenna offers exceptional performance and reliability.

Sirio GPA 135-175 Ground Plane AntennaSirio GPA 135-175 Ground Plane Antenna

Designed for ease of use and optimal performance, the Sirio GPA 135-175 boasts a range of impressive features:

  • Base station antenna with mono-band functionality
  • Omnidirectional radiation pattern with unity gain
  • Constructed from durable aluminium alloy 6063 T-832
  • Tunable design allows for whip length adjustment
  • Optional bracket FT-2 (code 2510004.00) for convenient side mast mounting

Technical Specifications:

  • Type: 1/4λ ground plane
  • Frequency Range: Tunable from 135 to 175 MHz
  • Impedance: 50Ω unbalanced
  • Radiation Pattern: 360° omnidirectional (H-plane), 86° beamwidth at -3 dB (E-plane)
  • Polarization: Vertical
  • Gain: 0 dBd – 2.15 dBi
  • Bandwidth at V.S.W.R. 2:1: 13 MHz at 135 MHz
  • Max. Power: 300 Watts
  • Connection: UHF-female

Ruggedly built and designed to withstand various environmental conditions, the Sirio GPA 135-175 antenna offers impressive mechanical characteristics:

  • Materials: Aluminium, Chromed brass, Nylon
  • Wind Load/Resistance: 29 N at 150 Km/h – 180 Km/h
  • Wind Surface: 0.03 m²
  • Height: Approximately 960 mm
  • Weight: Approximately 520 g
  • Radial Length: Approximately 520 mm
  • Mounting Mast: 35-40 mm
Sirio GPA 135-175 Ground Plane AntennaWhether you’re looking for reliable communication on land or at sea, the Sirio GPA 135-175 Ground Plane Antenna delivers outstanding performance and durability, making it the ideal choice for your base station needs. Upgrade to the Sirio GPA 135-175 and experience unparalleled connectivity with ease.

Additional information

Weight7 kg