The antenna AD-18/CF-3512 is "center-fed" type wideband mobile VHF/UHF antenna for frequency range from 30 to 512 MHz, mainly intended for use in heavy duty mobile applications . The antenna is composed of three main parts: antenna base, lower and upper radiating element. The antenna base is made of aluminum and durable plastic materials. Inside the base GPS L1 or L1/L2 antenna can be installed. Stainless steel spring absorbs the shocks and the vibrations, in addition protects the antenna against impacts. Both radiating elements are made of composite materials enable outstanding strength and roughness 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 NATO standard. Different base plate dimensions are available on request.
The antenna radiator is painted with military green (RAL-6014) two-component UV resistant paint. Other colors are available on request.
Versions
Technical specification
| ELECTRICALSPECS.: | |
|---|---|
| Frequency range | 30 - 512 MHz |
| Impedance | 50 ohms |
| VSWR | < 4.0 (typ. < 3.5 on VHF and < 2.5 on UHF) |
| Gain VHF | -14 .. +3 dBi |
| Polarization | vert. |
| Maximum power | 125 W CW |
| Connector | N female |
|
Electrical specifications GPS |
|
|---|---|
| Frequency range | L1 1575.42 +/- 10 MHz or L1/L2 1575/1227 MHz |
| Impedance | 50 ohm |
| VSWR | < 2 |
| Gain (LNA) | 26 dB |
| Polarization | RHC |
| Noise fig. | 1.35 dB |
| Power supply | from 2.5 V DC (7 mA) to 5 V DC (16 mA) |
| Connector | SMA female |
| Mechanical specifications | |
|---|---|
| Design |
Center-fed dipole (VHF); Center-fed dipole (UHF); patch antena with LNA (GPS) |
| Height | 2.990 m |
| Weight | 5.0 kg |
| Max. high voltage rating | 16 kV |
| Temp. range - in use | -50 ... +55 °C |
| Temp. range - in stock | -55 ... +75 °C |
| Wind velocity | 45 m/s (160 km/h) |
| Color | MIL Green |
