+420 604 553 126
info@raytra.com
+420 604 553 126
info@raytra.com
The RAYTRA UDA 7.4.50.2 is a professional vertical single dipole antenna designed for DAB/DAB+ digital radio broadcasting in the VHF Band III frequency range 174–240 MHz.
The antenna features a broadband design optimized for operation across the entire DAB broadcast band, eliminating the need for frequency retuning within the specified range. It provides stable RF performance, low VSWR, and reliable operation in professional broadcast installations.
The radiator and mechanical parts are manufactured from high-quality stainless steel, providing excellent resistance against corrosion and making the antenna suitable for long-term outdoor installations, including coastal and other harsh environmental areas.
The antenna is equipped with an optional protective radome, which improves resistance against ice, snow and severe weather conditions. This makes it suitable for installation on mountain transmitters and other locations with increased risk of icing.
The UDA 7.4.50.2 is intended for professional DAB broadcasting systems, local and regional multiplex networks, and high-reliability VHF transmission applications.
| Electrical properties | UDA 7.4.50.2 (.2B) |
| Frequency band [MHz] | 174-230 (240) MHz |
| VSWR | <1.28 whole band <1.13 in chanel on request |
| Gain | 4 dBi |
| Impedance | 50 |
| Polarization | Vertical |
| Maximal power | 2.5 kW |
| Connector | DIN 7/16 |
| UDA 7.4.50.2 - radiation pattern | UDA 7.4.50.2 radiation pattern |
| Horizontal -Hplane | Vertical - Eplane |
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| Mechanical properties | |
| radiator material | stainless steel |
| radome material | fiberglass |
| Height /depth [ mm ] | 650 / 450 |
| Weight | 7 kg |
| Max. wind speed | 230 km/h |
| Winload | 0.07 m2 |