This product comes from Alaris Antennas catalogues

Wideband HF High-Power Antenna System


This is a wideband wire cone monopole antenna that operates over the 1 to 30 MHz band with a VSWR of less than 2.6:1 over the band, with the typical value close to 1.7:1. The antenna gives a superior radiation pattern for HF signal interception and communications. The antenna deploys from a compact enclosure by means of a combination of a winch mechanism and pneumatic actuation in less than 220 seconds by a team of as few as 2 people. The antenna can be stowed just as quickly. The antenna is equipped with a sophisticated frequency selective matching unit which provides excellent VSWR characteristics for best possible efficiency across the band and requires no band switching or other matching control. The design has taken into account the worst-case soil-types and so will work for diverse deployments in deserts, urban areas and wetlands. A groundplane structure of the size of a 20 foot container or larger is suggested for use. All accessories, such as compressor, winch, guy ropes, matching unit etc. are all included with the product.

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Frequency range 1 - 30 MHz
VSWR < 2.6:1
Nominal input impedance 50 O
Connector N-type female
Feed power handling 1 kW CW
Efficiency See graph
Polarisation Linear
Deployed dimensions (Ø x l) 5 m x 8 m
Stowed dimensions (l x w x h) 4.2 m x 0.62 m x 0.5 m
Colour Upon request
Mass 350 kg (antenna) 60 kg (accessories) 550 kg (packaged)
Wind survival 120 km/hr (with all guy ropes deployed)
Temperature (operational) - 30 °C to + 51 °C
Temperature (storage) - 30 °C to + 71 °C
Vibration (ground transportation when stowed) MIL-STD-810E method 514.5

    Product Applications

    Electronic Countermeasures
  • Communications Jamming
  • Communications
  • Point-to-point Communications

    Design Features

  • Semi-Automatic deployment of antenna High-power handling Wideband Omni-directional Rugged Quick deployment time Compact packaging