signal office
21answer signal — Signal sent in a backward direction (e.g., from the called subscriber to the central office), which indicates that the called line has answered …
22Aeronautical Division, U.S. Signal Corps — Infobox Military Unit unit name=Aeronautical Division, U.S. Signal Corps caption=A Signal Corps bi plane prepares to land dates=1 August 1907–18 July 1914 country=United States allegiance= branch=United States Army type= role=Flying instruction… …
2322nd Signal Brigade (United States) — Infobox Military Unit unit name= 22nd Signal Brigade caption=22nd Signal Brigade shoulder sleeve insignia dates= 1945 1948 1951 1955 1964 1974 1981 2007 country= United States allegiance= branch= U.S. Army type= role= size= command structure=V… …
24General Railway Signal — Infobox Company company name = General Railway Signal Company company company type = dependent site within ALSTOM since 1998 foundation = 1904 location city = Rochester location country = New York key people = products = Equipment and services… …
25Traffic signal preemption — is a type of system that allows the normal operation of traffic lights to be preempted, often to assist emergency vehicles.[1][2] The most common use of these systems is to manipulate traffic signals in the path of an emergency vehicle, stopping… …
26Time signal — These automatic signal clocks were synchronized by telegraphy in 1905 before the widespread use of radio A time signal is a visible, audible, mechanical, or electronic signal used as a reference to determine the time of day. Contents 1 Audible… …
2732 (Scottish) Signal Regiment — Infobox Military Unit unit name=32 (Scottish) Signal Regiment caption=Cap Badge of 32 (Scottish) Signal Regiment dates=1967 Present country=United Kingdom branch=Territorial Army type=Royal Corps of Signals command structure=51st (Scottish)… …
28Aviation Section, U.S. Signal Corps — The Aviation Section, U.S. Signal Corps, was the name of the military aviation service of the United States Army from 1914 to 1918, and a direct ancestor of the United States Air Force. It replaced the Aeronautical Division, U.S. Signal Corps and …
29Broadcast signal intrusion — is a term given to the act of hijacking broadcast signals of radio and television stations. Hijacking incidents have involved local TV and radio stations as well as cable and national networks. Method of intrusion For analog stations it is… …
30Mount Signal, California — Mount Signal, viewed from the Imperial Valley, California. Coordinates: 32°40′42″N …
