tv catalogue - Alcad

903MAST AMPLIFIERSHigh gain amplifiers - 3 inputsAM-305AM-306DescriptionBroad band amplifiers for masts, with three inputs to amplify andcombine the signals from several antennas. The high gain togetherwith the attenuator allows them to be used with a wide range ofsignals. The attenuator located at each input makes it possible tocontrol the gain to obtain an output with all the bands equalised.They are fed through the coaxial cable from a power supply unitinstalled inside the building. They incorporate a DC path to allowthe feeding of a preamplifier.ApplicationsIndividual digital and analogue terrestrial TV installations. Theyamplify and mix the signals from several antennas. The signalobtained can be distributed to a large number of TV outlets bymeans of a single coaxial cable.CharacteristicsShielded zamak chassis, covered by an ABS plastic box for outdooruse. Fixed to the mast by means of a polyamide clamp. F typeconnectors.Accessories9030086 AL-100 +24 power supply unit.9120039 CM-004 Male F connector for Ø6.6 mm coaxial.9080023 MC-302 Male F connector for RG-6 coaxial, Ø7.0 mm.CODE 9030024 9030029MODEL AM-305 AM-306ConnectionF femaleInputs3 3Frequency rangeBand BI BIII/DAB UHF 1 UHF 2 BI FM BIII/DAB UHF 1 UHF 2MHz 40-70 160-260 470-862 470-862 40-70 88-108 160-260 470-862 470-862Gain dB±TOL 30 ±2.0 40 ±2.0 30 ±2.0 20 ±2.0 30 ±2.0 40 ±2.0Flatness response dB ±0.5 ±3.0 ±0.5 ±3.0Adjustable gain range dB 22 16 22 16Output leveldB108 DIN 45004B105 (IMD3 - 66 dB)93 (IMD2 - 60 dB)Return loss dB ≥10Noise figure dB 5.0 ±1.0 2.5 ±0.4