microwave transmitter
51Cavity magnetron — Magnetron with section removed (magnet is not shown) …
52Radio propagation — is a term used to explain how radio waves behave when they are transmitted, or are propagated from one point on the Earth to another. [ H. P. Westman et al, (ed), Reference Data for Radio Engineers, Fifth Edition , 1968, Howard W. Sams and Co.,… …
53Burglar alarm — Silent alarm redirects here. For the album, see Silent Alarm (album). Burglar (or intrusion), fire and safety alarms are all electronic today. Sensors are connected to a control unit via a low voltage hardwire or narrowband RF signal which is… …
54Orthomode transducer — Orthomode transducer, VSAT Ku band Outdoor unit, includes …
55WPHM — Infobox Radio station name = WPHM city = Port Huron, Michigan area = [http://www.radio locator.com/cgi bin/pat?call=WPHM service=AM status=L hours=D] (Daytime) [http://www.radio locator.com/cgi bin/pat?call=WPHM service=AM status=L hours=N]… …
56Tone remote — General Electric Mobile Radio, unknown year). This GE manual covers tone and DC remotes. ] [To confirm the use of the phrase tone remote as accurate in describing this type of device, please see US Patent and Trademark Office patent ID 6950653,… …
57Atomic clock — Nuclear clock redirects here. For the clock as a measure for risk of catastrophic destruction, see Doomsday Clock. For a clock updated by radio signals (commonly but inaccurately called an atomic clock ), see Radio clock. For the album by Zion I …
58NTSC — This article is about the television system. For the Indonesian government agency, see National Transportation Safety Committee. Television encoding systems by nation; countries using the NTSC system are shown in green. NTSC, named for the… …
59SECAM — SECAM, also written SÉCAM (Séquentiel couleur à mémoire,[1] French for Sequential Color with Memory ), is an analog color television system first used in France. A team led by Henri de France working at Compagnie Française de Télévision (later… …
60CBWT — City of license Winnipeg, Manitoba Branding CBC Television Slogan Canada Lives Here …
