received signal strength indicator
21Sonar — This article is about underwater sound propagation. For atmospheric sounding, see SODAR. For other uses, see Sonar (disambiguation) …
22Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… …
23Digital television in Canada — (more specifically, digital terrestrial television in Canada or digital over the air television (OTA) in Canada) is transmitted using the ATSC standards developed for and in use in the United States. Because Canada and the U.S. use the same… …
24SINPO — SINPO, acronym for signal, interference, noise, propagation, and overall, is a code used to describe the quality of radio transmissions, especially in reception reports written by shortwave listeners. Each letter of the code stands for a specific …
25Radar display — Modern radar systems typically use some sort of raster scan display to produce a map like image. In the past, notably during the early days of radar development, such displays were difficult to produce for a number of reasons. Several different… …
26Base station — The term base station can be used in the context of land surveying, wireless computer networking, and wireless communications.Land surveyingIn the context of external land surveying, a base station is a GPS receiver at an accurately known fixed… …
27Non-directional beacon — Radio Tower of NKR Leimen Ochsenbach, Germany This symbol denotes an NDB on an aeronaut …
28Motorola MicroTAC — The Motorola MicroTAC was a cellular phone first manufactured as an analog phone in 1989. The GSM compatible and TDMA/Dual Mode phones were introduced in 1994. The MicroTAC introduced an innovative new flip design, where the mouthpiece folded… …
29Economics — This article is about the social science. For other uses, see Economics (disambiguation). For a topical guide to this subject, see Outline of economics. Economics …
30Powel Crosley, Jr. — 1949 Crosley Hotshot auto Appliance Display, at the Deer Park Museum, Escondido, California. Powel Crosley, Jr. (September 18, 1886 – March 28, 1961) was an American inventor, industrialist, and entrepreneur. He and his brother Lewis were… …
