This product comes from Alaris Antennas catalogues

Wideband HF Monopole


The MONO-A0025 is a wideband dual monopole antenna that covers the frequency range of 1 MHz to 30 MHz at an input power of 1000 W. The antenna pattern is essentially omni-directional, making it ideal for wideband high-power applications such as improvised explosive device (IED) suppression. This antenna has a nice compact footprint when mounted and being relatively light in weight makes it suitable for any rapid deployment applications like vehicles and shelter roof tops where larger antennas would be impractical. The whips can be tied back in a variety of ways to ensure best performance and mobility trade-offs. The whip sections of the antenna are easily removed from the base and then stored in a canvas bag for easy transportation and storage. For most applications the base can then remain attached as a fixed low profile installation that also gets a canvas bag to cover it when not in use. This further reduces the assembly time to only a couple of minutes in the field. The assembly mechanism is designed to be highly shock and vibration resistant. The MONO-A0025 is constructed entirely from corrosion-resistant materials and specified over a wide operating temperature range: -40 °C to + 70 °C (no icing).

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Frequency range 1 - 30 MHz
VSWR < 3:1
Nominal input impedance 50 Ω
Feed power handling 1000 W
Efficiency Typical is above 50% down to 15 MHz, reducing to 10% at 8 MHz, and 1 % at 5 MHz
Directivity 0 dBi (± 0.5 dB) dependent on the groundplane
Connector N-type (female)
Dimensions (l x d of base) 6000 mm x 330 mm
Weight < 30 kg
MTBF Wind survival
Wind survival 120 km/h
Temperature (operational) - -40 °C to +70 °C
Shock 40 g’s for 10 ms (all axis)
Vibration MIL-STD-810E (514.5) 2.3.9.b track laying vehicles
Water ingress rating MIL-STD-820F (506.4)

    Product Applications

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

    Design Features

  • Small and light - significantly shorter in length than a full-size dipole for this frequency range VSWR better than 3:1 across the entire frequency range. No matching unit required, so ideal for wideband and frequency-agile applications