ultra-short waves

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• ultra- — UK [ʌltrə] / US prefix 1) extremely: used with many adjectives an ultra modern kitchen an ultra cautious approach ultra right wing organizations 2) science outside a particular range: used with some nouns and adjectives ultra short radio waves …   English dictionary

• Ultra high frequency — (UHF) designates a range (band) of electromagnetic waves with frequencies between 300 MHz and 3 GHz (3,000 MHz). Also known as the decimeter band or decimeter wave as the wavelengths range from ten to one decimeters. Radio waves with frequencies… …   Wikipedia

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• Yagi-Uda-Antenne — Eine Yagi Uda Antenne (häufige Bezeichnung auch Yagi Antenne) ist eine Richtantenne zum Empfang oder zum Senden elektromagnetischer Wellen im Bereich von ca. 10 MHz bis ca. 2000 MHz. Sie besteht aus einem gespeisten Dipol, einer Reihe von… …   Deutsch Wikipedia