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United States Army Signal Corps, Traffic signal preemption, 50th (Northumbrian) Signal Regiment, Cab signalling, 43rd (Wessex) Signal Regiment, Signal analyzer, 36th (Eastern) Signal Regiment, Signal Festival, Signal Hill, California, Signal Mountain, Smoke signal, City of London Signals, Standard frequency and time signal service, Federal Signal Corporation, Russian Signal Troops, Large-signal model, Union Switch & Signal, 12th Signal Brigade (United Kingdom), 232nd Signal Regiment (Italy), 34th (Northern) Signal Regiment, 44th (Home Counties) Signal Regiment, List of peaks named Signal, C signal handling, Signal peptidase I, Signal to Noise, North American railroad signals, Signaling (telecommunications), 40th (Ulster) Signal Regiment, Royal Corps of Signals, Central Signal Village, International maritime signal flags, Flag signals, Bus priority signal, Distress signal, 7th Signal Regiment (United Kingdom), 48th (South Midland) Signal Regiment, 47th Signal Battalion "Gennargentu", 11th Signal and West Midlands Brigade, London District Signals, 39th (Skinners) Signal Regiment, 516th Signal Brigade, 9th Army Signal Command (United States), 18th (UKSF) Signal Regiment, 21st Signal Regiment (Electronic Warfare), Railway signalling, 32nd Signal Regiment (United Kingdom), Mixed-signal integrated circuit, Multidimensional signal processing, 2nd Signal Regiment (United Kingdom), Signal Intelligence Service

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