AD-27/V120-3108: wideband mobile VHF monopole antenna, 30 - 108 MHz

The antenna AD-27/V120-3108 is a wideband monopole mobile VHF antenna intended for frequency range from 30 to 108 MHz. The antenna is designed for maximum possible gain and acceptable low VSWR with extreme short radiating element. The antenna is therefore intended for use on smaller vehicles, motorcycles, etc. The antenna is composed of two parts: the antenna base and the radiating element. The antenna base is made of aluminium and durable plastic materials. Inside the base is matching transformer unit for the VHF radiator and (optional) GPS antenna. Powerful biconical spring protects the antenna against impacts. The radiating element is made of  composite materials enable outstanding strength even in hardest conditions of use. The antenna base has four mounting holes equally spaced on a 4.5" (114.3 mm) circle which complies with US army standard (AS-1729). Different base plate dimensions are also available on request. The antenna is completely painted with military green (RAL-6014) two-component UV resistant paint. 


VHF antenna with N female input connector.
VHF antenna with N female input connector and active GPS L1 antenna inside the antenna base.
VHF antenna with BNC female input connector.
VHF antenna with BNC female input connector and GPS L1 antenna inside the antenna base.

Technical specification

Electrical specifications - VHF/UHF  
Frequency range 30 - 108 MHz
Impedance 50 ohm
VSWR < 3.5
Gain (see diagram)
Polarization VERT.
Max. power 100 W CW
Connector N female (BNC female optional)
Electrical specifications - GPS  
Frequency range L1 1575.42 +/- 10 MHz
Impedance 50 ohm
VSWR < 2
Polarization RHC

LNA Gain / Voltage / Current



18 dB (+/- 2 dB) / 5 V / 19 mA
16 dB (+/- 2 dB) / 3.5 V / 13 mA
10 dB (+/- 2 dB) / 2 V / 7 mA
Noise fig. <1.5 dB
Connector SMA female
Mechanical specifications  
Design End-fed whip (VHF)
Height 1.2 m
Weight 2 kg
Max. high voltage rating 16 kV
Temp. range - in use -40 ... +75 oC
Temp. range - in stock -55 ... +75 oC
Wind velocity 55 m/s (200 km/h)
Color MIL Green

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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