AD-21/3108: wideband portable/mobile VHF monopole antenna, 30 - 88 MHz

The antenna AD-21/3108 is a wideband low-profile monopole mobile antenna covering frequency range from 30 to 108 MHz and is intended for use with portable and mobile radios. The antenna radiator is composed of two parts: the whip made of special strong and flexible stainless steel whip with spring at the bottom and the matching transformer unit above the N male coaxial connector. The radiator and the matching unit are painted with UV protective polyurethane black paint. The antenna radiator could be used as a separate antenna attached to the portable radio device or it can be used with the magnet base ADM-21/N or fixed base ADN-21/N, both with the integrated coaxial cable length of 4 meters and ended with the FME female connector. Various adapters from FME to N, BNC, UHF, SMA, etc. are available on request. 


wideband monopole antenna for portable radio devices with N male connector
antenna AD-21/3108-N with the fixed mount ADN-21/N for mobile applications
antenna AD-21/3108-N with the magnet mount ADM-21/N for mobile applications

Technical specification

Frequency range 30 - 108 MHz
Impedance 50 ohm
VSWR < 3.5 (see diagram)
Max. power 50 W CW
Gain see diagram
Height 120 cm
Weight of antenne 200 gr
Magnetic base weight 850 gr
Fixed base weight 200 gr
Cable lenght 4 m
Connector FME female

Contact us


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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