Signal original form to a waveform expressed as a current ("I") or a voltage ("V"), or an electromagnetic waveform, for example, an optical signal or radio transmission. Once expressed as an electronic signal, the signal is available for further processing by electrical devices such as electronic amplifiers and electronic filters, and can be transmitted to a remote location by electronic transmitters and received using electronic receivers. In Electrical engineering programs, a class and field of study known as "signals and systems" (S and S) is often seen as the "cut class" for EE careers, and is dreaded by some students as
14 Signal Regiment (Electronic Warfare) warfare support to NATO and to the British elements under its command, this as a result of the formation of the Allied Rapid Reaction Corps. Changes in the organisation of the British Army caused the Regiment to move its Headquarters and two of its three field squadrons (226 and 245 Signal Squadrons) to Osnabrück, in April 1993. The third field squadron, 237 Signal Squadron (Electronic Warfare), moved to Hullavington, England at the same time. In December 1995, the German-based elements moved again, to Cawdor Barracks near Haverfordwest, Pembrokeshire, and 237 Signal Squadron joined them six months later after an operational