CW (Continuous Wave)

Continuous Wave (CW) refers to a type of electromagnetic wave that maintains a constant amplitude and frequency over time. Unlike pulsed signals, which switch on and off, a CW signal is steady and uninterrupted. CW is commonly used in radio communications, particularly in Morse code transmissions, where the signal is either on (dot or dash) or off (space). It allows for efficient and effective long-distance communication by enabling clear signal detection amidst background noise. This method is foundational in various technologies, including radar and certain types of wireless communications.