backup signal
121WWVB — For the Virginia based broadcast radio station, please see WWVB FM. WWVB is a special NIST time signal radio station near Fort Collins, Colorado, co located with WWV. WWVB is the station that radio controlled clocks throughout North America use… …
122Noon Gun — Seen firing on 4th September 2008 The Noon Gun has been an historic time signal in Cape Town, South Africa since 1806. The gun is situated on Signal Hill, close to the centre of the city …
123Burglar 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… …
124Differential GPS — Transportable DGPS reference station Baseline HD by CLAAS for use in satellite assisted steering systems in modern agriculture Differential Global Positioning System (DGPS) is an enhancement to Global Positioning System that provides improved… …
125Secondary surveillance radar — SSR antenna of Deutsche Flugsicherung at Neubrandenburg, in Mecklenburg/Western Pomerania Secondary surveillance radar (SSR)[1] is a radar system used in air traffic control (ATC), that not only detects an …
126KATV — Infobox Broadcast call letters = KATV city = station station slogan = The Spirit Of Arkansas (general) 7 is News (newscasts) station branding = KATV 7 (general) Channel 7 News (newscasts) analog = 7 (VHF) digital = 22 (UHF) (silent) 44 HD2… …
127WBME-TV — WYTU LP Racine/Milwaukee, Wisconsin Branding Me TV Milwaukee Slogan Milwaukee s home for classic TV …
128Geophysical MASINT — is a branch of Measurement and Signature Intelligence (MASINT) that involves phenomena transmitted through the earth (ground, water, atmosphere) and manmade structures including emitted or reflected sounds, pressure waves, vibrations, and… …
