The antenna AD-27/V190-3108 is a family of wideband monopole VHF low profile mobile antennas for frequency range from 30 to 108 MHZ. The antenna has a very low profile of radiating elements, very low visibility and very low weight, making it universal and suitable for installations in heavy trucked as well as lighter wheeled military vehicles. The antenna is composed of two main parts: antenna base and radiating element. The antenna base is made of aluminum and durable plastic materials. Inside the base is the matching circuitry for the VHF radiator and (optional) GPS antenna. Stainless steel spring absorbs the shocks and the vibrations, in addition protects the antenna against impacts, while the (optional) tilting mechanism enables to adjust the inclination radius of the antenna, when "on move", or if decided so. The radiating element is made of a conical Stainless Steel rod enabling outstanding strength and flexibility in the most severe environmental conditions. The antenna base has four mounting holes equally spaced on a 4.5" (114.3 mm) circle which complies with NATO and US army standard (AS-1729). Different base plate dimensions are available on request.
Versions
Technical specification
Elektrical specifications - VHF/UHF | |
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Freqvency range | 30 - 108 MHz |
Impedance | 50 ohm |
VSWR | < 3.5 |
Gain | (see diagram) |
Polarization | VERT. |
Max. power | 100 W CW |
Connector | BNC female (N female optional) |
Electrical specifications - GPS | |
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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 | |
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Design |
End-fed whip (VHF); patch antena with LNA (GPS) |
Height | 1.95 m |
Weight | 2.2 kg |
Max. high voltage rating | 16 kV |
Temp. range - in use | -40 ... +55 oC |
Temp. range - in stock | -55 ... +75 oC |
Wind velocity | 55 m/s (200 km/h) |
Color | Black |