HF Inverted Cone Broadband Antenna 3-30 MHz Omni

Frequency Range: 3-30 MHz
Gain: 2 dBi
VSWR: 2:1 max
Polarization: Vertical
Pattern: Omnidirectional
Size: 37′ H, 197′ D
Military Nomenclature: n/a

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The ICV-III antenna is designed for fixed stations and is suitable for skywave propagation for medium to long range circuits. It can also be used for ground-wave circuits up to approximately 100 miles. It are well suited for shore-to-ship communication circuits.


The inverted-cone vertical antenna has similar RF characteristics as the VOBA antennas. ICV curtains in contrast to VOBAs are supported by six wood poles instead of a single vertical tower allowing for more compact installations.


The ICV-III antenna is a broadband fixed station antenna. All materials used in construction have been field proven and subjected to rigorous environmental testing.

Equipment Supplied:

Prefabricated alumoweld curtain, guys, base insulator, embedment hardware, ground screen, antenna matching unit, and spare hardware.

Optional Equipment:

Repair kit, repair tool kit, wood poles, and spares kit. Coaxial cable, connector adapters and mating adapters.

Spec Sheet


Input Connector 3-1/8″ EIA Flange
Wind Loading 125 MPH Wind, no ice 90 MPH Wind, 0.5 in. radial ice
Shipping Volume 175
Gain 2 dBi Between 0 and 15 Degrees above the horizon
Shipping Weight 2,946
Frequency Range 2.5-30 MHz
VSWR 2:1 Maximum
Power Capability 25 kW AVG/50 kW PEP, 100 kW Peak Instantaneous
Height 44 Feet
input Impedance 50 Ohms Unbalanced
Azimuth Coverage Omnidirectional +/- 1 dB
Polarization Vertical