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Antenne mixte pour reception de signaux emis simultanement par satellite et par stations terrestres, notamment pour la reception de signaux de radiodiffusion sonore numerique.
Basisbandkombinations-Polarisations diversity-Heterodynempfänger, in welchem ZF-Signale mittels einer von einem Ausgangssignal abgeleiteten negativen Rückkopplung angepasst werden