frequency error detector
81NOAA Weather Radio All Hazards — Type Weather Radio/Civil Emergency Services Branding …
82Tests of general relativity — General relativity Introduction Mathematical formulation Resources Fundamental concepts …
83Mariner 2 — Operator NASA Major contractors Jet Propulsion Laboratory Mission type Flyby …
84Cassini–Huygens — Artist s concept of Cassini s Saturn Orbit Insertion Operator NASA / ESA / ASI Mission type …
85Anemometer — A hemispherical cup anemometer of the type invented in 1846 by John Thomas Romney Robinson Cup ty …
86New Horizons — For other uses, see New Horizons (disambiguation). New Horizons Operator NASA Major contractors Applied Physics Laboratory (APL) Southwest Research Institute (SwRI) …
87Telegraphy — (from the Greek words (τηλε) = far and (γραφειν) = write) is the long distance transmission of written messages without physical transport of letters. Radiotelegraphy or wireless telegraphy transmits messages using radio. Telegraphy includes… …
88Charge pump — 2 stage charge pump with DC voltage supply and a pump control signal S0 A charge pump is a kind of DC to DC converter that uses capacitors as energy storage elements to create either a higher or lower voltage power source. Charge pump circuits… …
89MPEG-2 — Not to be confused with MPEG 1 Audio Layer II (MP2). MPEG 2 is used in Digital Video Broadcast and Digital Versatile Discs. The MPEG transport stream, TS, and MPEG program stream, PS, are container formats. MPEG 2 is a standard for the generic… …
90Air safety — is a term encompassing the theory, investigation and categorization of flight failures, and the prevention of such failures through regulation, education and training. It can also be applied in the context of campaigns that inform the public as… …
