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The Yagi type 7RB3 antenna from the renowned Italian manufacturer Emme Esse is a broadband antenna for the entire TV VHF III band, currently widely used for DAB, DAB + in the frequency range of 174 to 230MHz. Its construction consists of a two-piece aluminum alloy boom with dimensions of 18 x 18mm, wall thickness of 0.7mm. The elements, including the dipole, consist of an 8mm diameter aluminum alloy tube. Caliper, yoke coupling, reflector bracket are made of iron, galvanized sheet thickness 1.5mm. It is also suitable for medium-distance DAB transmitters. The bracket allows mounting for horizontal and vertical polarization of the signal, when vertical polarization ensure that the vertical elements are about 90cm from the mast, so that the mast does not shield the antenna. To maintain the main radiation lobe, for vertical polarization, it is recommended to mount 2 antennas in a twin antenna, at a distance of about 182cm and combining the antennas with Emme Esse 83196CE catalog number 14411266.
The antenna is completely pre-assembled and ready for installation. The antenna is in ICE surface treatment, when white anticorrosive treatment is performed by ecological anticorrosive preparation Trattamento (anticorrosive treatment by alkaline degreasing, deoxidation and passivation). White plastic has high resistance to xenon light tested in the laboratory. We strongly recommend professional installation according to the applicable regulations (connection to lightning conductor, protection by connecting, lightning arresters, etc.).
Product parameters :
- DAB radio and television antenna in VHF III band - Frequency range : 174-230 MHz - number of elements : 7 (two-element reflector) - Antenna output impedance : 75 Ω - Connection : connector Ff, with rubber cover
Technical parameters :
- Frequency range : 174 - 230 MHz - number of elements : 7 (two-element reflector) - gain : 5 - 7 dB - fore / aft ratio : 24 dB - Antenna output impedance : 75 Ω - Connection : connector Ff, with rubber cover - radiation angle in horizontal polarization (H) : 47 ° - antenna length : 1190 mm - mechanical load of the mast at a wind speed of 120 km/h : 5.5 kg - weight : 1.3 kg
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