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11133-centimeter band — 33 Centimeters is an amateur radio band. It ranges from 902 to 928 MHz and is unique to ITU Region 2. The 33 centimeter band is part of the UHF spectrum, and is primarily used for very local communications as opposed to bands lower in… …
112Antenna diversity — Antenna diversity, also known as space diversity, is one in a superset of wireless diversity schemes that utilizes two or more antennas to improve the quality and reliability of a wireless link. Often, especially in urban and indoor environments …
113Invention of radio — Great Radio Controversy redirects here. For the album by the band Tesla, see The Great Radio Controversy. Contents 1 Physics of wireless signalling 2 Theory of electromagnetism …
114Radio repeater — A radio repeater is a combination of a radio receiver and a radio transmitter that receives a weak or low level signal and retransmits it at a higher level or higher power, so that the signal can cover longer distances without degradation. This… …
115Precoding — is generalized beamforming to support multi layer transmission in MIMO radio systems. Conventional beamforming considers linear single layer precoding so that the same signal is emitted from each of the transmit antennas with appropriate… …
116Moving target indication — (MTI) is a mode of operation of a radar to discriminate a target against clutter. [1] In contrast to another mode, stationary target indication, it takes an advantage of the fact that the target moves with respect to stationary clutter. The most… …
117Heruka — Le heruka Chakrasamvara et sa parèdre Vajravarahi Heruka (sanskrit), en tibétain khrag thung, « buveur de sang », désigne une sorte de déité masculine courroucée ou semi courroucée du vajrayana, importante dans la pratique des yogas… …
118Alexander Graham Bell — Infobox Person name = Alexander Graham Bell image size = 225px caption = Portrait of Alexander Graham Bell c. 1910 birth date = 3 March 1847 birth place = Edinburgh, Scotland, UK death date = death date and age|1922|8|2|1847|3|3|df=y death place …
119Serial ATA — SATA redirects here. For other uses, see SATA (disambiguation). Serial ATA (SATA) From top to bottom, SATA Certification Logo, SATA cable, and two first generation (1.5 Gbit/s) SATA data connectors on a …
120Lyme disease — Classification and external resources Nymphal and adult deer ticks can be carriers of Lyme disease. Nymphs are about the size of a poppy seed. ICD 10 A …
