AD-2/WB-7: Wideband HF antenna for vessels 1 - 30 MHz

Antennas AD-2/WB represents the family of transceiving self- supporting HF wideband monopoles. The antennas are composed of three sections, connected together by screw-joints, protected against unscrewing with a cross screw protecting unit. The first part of the antenna is support with antenna matching unit underneath. Inside the base is the matching circuitry for the antenna. The N-type connector is mounted on the side of the antenna base. The support flange is convenient for mounting directly on the deck. 
The antenna sections are made of epoxy-glass composite material and the screw joints are made of stainless steel. The antennas are very lightweight but on the other side, they are highly resistant against all weather conditions. The flange on the support type is made of special polyamide and aluminum with excellent mechanical characteristics. Antennas AD-2/WB are intended primarily for use on all kinds of ships, oil rigs etc. They could be also used on ground objects for stationary use. In that case, a special wire ground-plane must be ordered.

The antenna radiator is painted with military green (RAL-6014) two-component UV resistant paint.

Technical specification

Frequency range 1 - 30 MHz
Impedance 50 ohms 
VSWR < 2,5
Gain -30 ... +3 dBi
Polarization Vertical
Maximum power 200 W CW
Connector N female
Design End fed whip
Height 7 m
Weight 11 kg (8 + 2 + 1 kg)
Temperature range - in use -40 ... +70 °C 
Temperature range - in stock -50 ... +85 °C
Wind rating 45 m/s (160 km/h)
Color MIL Green

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TRIVAL ANTENE d.o.o., Gorenjska cesta 25, 1234 Menges, SLOVENIA, EU
TEL: +386-1-8314-396, FAX: +386-1-8313-377, EMAIL:

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