This product comes from Alaris Antennas catalogues

Manpack VHF High-Power Antenna

OMNI-A0178
Active

This wideband manpack antenna covers the full VHF band with some extension to 20 MHz and 520 MHz. It is mounted on a connector base, with a matching unit at the base, a spring for shock absorption and flexibility, and has a thin steel whip. By covering the full VHF band in 1 antenna, it replaces 2 conventional high-power antennas, reducing clutter and visual signature on the manpack system The matching section at the base of the antenna contains transformers and loading for the whip. This is mounted directly onto the N-type connector. The whip extends from the top of the matching section, it is spring-loaded at its base, and flexible over its length The radiating whip is loaded along its length to control the antenna radiation patterns. It is thin and flexible over most of its length, with loads protruding slightly. The whip will not be damaged by contact with trees, doorways etc., in normal operation.

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Specifications

Frequency range 20 - 520 MHz
VSWR < 3.5:1
Nominal impedance 50 O
Azimuth pattern Omni-directional
Elevation pattern Monopole pattern
Power handling 30 W CW
DC resistance Short circuit
Groundplane requirements Groundplane dependent
Dimensions of base (l x d) 125 mm x 60 mm
Dimensions of whip (l x d) 875 mm x 25 mm max
Total mass 0.5 kg
Mounting On connector at base
Colour Black
Temperature range Storage: -30 °C to +70 °C Operation -30 °C to +55 °C
Humidity MIL-STD-801F Test 507.4 Storage: 0% to 95% RH Operation: 0% to 95% RH

    Product Applications

    Electronic Countermeasures
  • Counter RCIED

    Design Features

  • High efficiency VHF antenna Full-band coverage, takes the place of 2 regular high-power antennas Proven flexible base spring protects the antenna