locating radio receiver
21Voyager 1 — This article is about the spacecraft. For the album by The Verve, see Voyager 1 (album). For fictional Voyager One from Space: 1999, see Voyager One (Space: 1999). Voyager 1 Voyager …
22AN/SPG-59 — Infobox Radar name = AN/SPG 59 country = United States introdate = Canceled 1963 number = 1 type = 3D Air search and tracking frequency = range = 110 nm Maximum altitude = diameter = azimuth = 0 to 360º elevation = precision = power = The AN/SPG… …
23Helitack — refers to helicopter delivered fire resources , [http://www.fpa.nifc.gov/Library/Papers/Docs/WP Helitack Deployment 2005 05 16.pdf Fire Program Analysis Initial Response Module: Helitack Deployment , Fire Program Analysis, National Interagency… …
24Polish contribution to World War II — Campaign name=Main engagements of Polish forces during World War II battles=Westerplatte – Mokra – Bzura – Enigma – Narvik – France Battle of Britain – Tobruk Crusader – Gazala – Dieppe – Tunisia Lenino – Monte Cassino Caen Osuchy – Ostra Brama – …
25NSA encryption systems — The National Security Agency took over responsibility for all U.S. Government encryption systems when it was formed in 1952. The technical details of most NSA approved systems are still classified, but much more about its early systems has become …
26Lightning prediction system — A lightning prediction system includes various methods and different apparatus for remotely sensing electrical activity and the potential for lightning occurrence. In the several variant systems and methods, means are provided for the automated… …
27Car alarm — This article is about the electronic device. For the Kim Possible episode, see Car Alarm (TV Episode). A car alarm is an electronic device installed in a vehicle in an attempt to discourage theft of the vehicle itself, its contents, or both. Car… …
28RTLS communications — Articleissues essay=July 2008 copyedit=May 2008 refimprove=August 2008RTLS communications is a special breed of wireless communicating with the aim to support locating wireless nodes not only topologically, but merely topographically outdoors or… …
29History of radar — The history of radar starts with experiments by Heinrich Hertz in the late 19th century that showed that radio waves were reflected by metallic objects. This possibility was suggested in James Clerk Maxwell s seminal work on electromagnetism.… …
30Ultra-wideband — (aka UWB, ultra wide band, ultraband, etc.) is a radio technology that can be used at very low energy levels for short range high bandwidth communications by using a large portion of the radio spectrum. UWB has traditional applications in non… …
