carrier-current communication system
41International Space Station — ISS redirects here. For other uses, see ISS (disambiguation). International Space Station …
42language — /lang gwij/, n. 1. a body of words and the systems for their use common to a people who are of the same community or nation, the same geographical area, or the same cultural tradition: the two languages of Belgium; a Bantu language; the French… …
43Electrical telegraph — A printing electrical telegraph receiver, and a transmitter key at bottom right An electrical telegraph is a telegraph that uses electrical signals, usually conveyed via telecommunication lines or radio. The electromagnetic telegraph is a device… …
44Pulse-code modulation — PCM redirects here. For other uses, see PCM (disambiguation). Pulse code modulation (PCM) is a method used to digitally represent sampled analog signals. It is the standard form for digital audio in computers and various Blu ray, Compact Disc and …
45Dassault Rafale — Rafale A Rafale B (foreground), and a Rafale C (background) of the French Air Force Role Multirole fighter aircraft …
46BRDM-2 — Infobox Weapon name=BRDM 2 caption=Iraqi BRDM at the U.S. National Infantry Museum, Fort Benning origin=Soviet Union type=Amphibious Armoured Scout Car is vehicle=yes service=1962 present used by=See Operators wars=See Service History designer=V …
47Signals intelligence operational platforms by nation — This article is a subset article under the main article Signals intelligence, which addresses the unifying conceptual and technical factors and common technologies in this intelligence discipline. This article deals with current signals… …
48Wavelength-division multiplexing — For the radio station, see DWDM FM. Multiplex techniques Circuit mode (constant bandwidth) TDM · FDM · SDM Polarization multiplexing Spatial m …
49The Authority — Infobox comics organization imagebox= caption=The Authority, as featured on the cover for the Under New Management trade paperback. Art by Frank Quitely, 2000 publisher=Wildstorm debut= The Authority #1 creators=Warren Ellis Bryan Hitch base=The… …
50Microwave transmission — The atmospheric attenuation of microwaves in dry air with a precipitable water vapor level of 0.001 mm. The downward spikes in the graph correspond to frequencies at which microwaves are absorbed more strongly, such as by oxygen molecules… …
