AD-39/2512-AW: dipole antenna for VHF/UHF range 20 - 620 MHz for base station, special design for heavy ice load and heavy wind
The AD-39/2512-AW is a dipole antenna designed for stationary use on VHF and UHF frequencies from 20 to 620 MHz. It consists of a matching unit at the center with a balun transformer and two dipoles. The matching unit is housed in aluminum, while the dipoles are enclosed in a wide fiberglass tube, making the structure lightweight and strong. Stainless steel and aluminum parts are black passivated or protected by black cataphoresis, while fiberglass parts are black painted. The mechanical design ensures durability in harsh weather conditions with heavy ice loads and heavy winds. The mounting accessories allow installation on square or round tubes with diameters up to 120 mm. The antenna can be installed in vertical or horizontal polarization mode.
Technical specification
| Frequency range | 20 - 620 MHz |
| Impedance | 50 ohms |
| VSWR | < 3.5 |
| Gain | see diagram |
| Polarization | VERT./HOR. |
| Maximum power | 200 W CW |
| Connector | N female |
| Dipole diameter | 42.7 mm |
| Height | 3000 mm |
| Arm length | 990 mm (or by request) |
| Weight | 13.8 kg |
| Wind speed | 200 km/h (no ice) 150 km/h (with 20 mm uniform radial ice) |
| Temp. range - operating | -40 ... + 65 oC |

