antenna tracking
81International Space Station — ISS redirects here. For other uses, see ISS (disambiguation). International Space Station …
82Lobe switching — is a method used on early radar sets to improve tracking accuracy. It used two slightly separated antenna elements to send the beam slightly to either side of the midline of the antenna, switching between the two to find which one gave the… …
83Moon landing conspiracy theories — Astronauts Buzz Aldrin and Neil Armstrong in NASA s training mockup …
84McDonnell Douglas F-15E Strike Eagle — For the game, see F 15 Strike Eagle (video game). F 15E Strike Eagle USAF F 15Es of the 4th Operations Group in fo …
85High Frequency Active Auroral Research Program — HAARP is often confused with Project HARP, the High Altitude Research Project (a joint project of The Pentagon and the Canadian Department of National Defence).The High Frequency Active Auroral Research Program (HAARP) is an investigation project …
86Radio direction finder — Civil Air Patrol members practice using a handheld radio direction finder to locate an emergency locator transmitter …
87Radome — Radomes at the Misawa Security Operations Center, Misawa, Japan A radome (radar dome) is a structural, weatherproof enclosure that protects a microwave or radar antenna. The radome is constructed of material that minimally attenuates the… …
88GPS modernization — The United States Global Positioning System (GPS), having reached Fully Operational Capability on July 171995 [ [http://www.navcen.uscg.gov/gps/geninfo/global.htm Global Positioning System Fully Operational ] ] completed its original design goals …
89Vessel monitoring system — Vessel monitoring systems (VMS) are used in commercial fishing to allow environmental and fisheries regulatory organizations to monitor, minimally, the position, time at a position, and course and speed of fishing vessels. They are a key part of… …
90Mir — This article is about the Soviet/Russian space station. For other uses, see Mir (disambiguation). Mir …
