AIS-GPA Base station antenna with ground plane

AIS-GPA BASE STATION ANTENNA WITH GROUND PLANE

MODEL NUMBER: AIS-GPA

A base station antenna with ground plane for land and marine service and with a tunable frequency range.

SKU: 001-1041 Category:

Product Description

OVERVIEW

A ground plane base station antenna for land and marine service with a tunable frequency range of 135 – 175 MHz. The matching coil is DC fed for protection from static discharges. The antenna is made from non-corrosive aluminium and assembled to a strong die-cast base.

SPECIAL FEATURES

  • Tunable by length adjustment
  • Made from aluminium alloy grade 606 T-832

APPLICATIONS

  • For shoreside monitoring of shipping by Government bodies
  • Managing traffic at local port approaches
  • Locating ships for local tug/supply operators
  • Analysing shipping in specific areas
  • Monitoring fishing zones
  • Feeding data to AIS vessel tracking websites

PHYSICAL

  • Weight: 570 g approx. Shipping weight: 900 g approx.
  • Dimensions: L 1480 mm (approx.); radial lengths 530 mm (approx.)
  • Mounting: To mast Ø 25 - 30 mm
  • Connections: UHF female, gold plated central pin
  • Construction: Aluminium, copper, nylon
  • Wind loading: 28 N @ 150 Km/h
  • Wind surface area: 0.02 m²

ELECTRICAL

  • Type: 5/8 λ ground plane
  • Antenna Impedance: 50 Ω
  • Radiation (H-plane): 360° omnidirectional
  • Radiation (E-plane): Beamwidth @ -3 dB = 67°
  • Radiation angle: 18°
  • Polarization: Linear vertical
  • Bandwidth @ SWR ≤2: see diagram
  • SWR @ res. freq.: see diagrams
  • Max. Power: (CW) @ 30°C: 200 Watts
  • Grounding protection: All metal parts are DC-grounded; the inner conductor shows a DC-short
  • Connector: UHF-female, gold plated central pin

OPERATIONAL

  • Frequency range: Tunable 135 - 175 MHz (by adjusting antenna length)
  • Gain: 1.5 dBd - 3.65 dBi
  • SWR @ res. freq: see datasheet

ENVIRONMENTAL

  • IP rating: IP65
  • Operating temp: -15°C to +55°C
  • Compass: Safe Distance 50 cm

ADDITIONAL INFORMATION

  • Supplied complete with pole mounting bracket & 10 m cable

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