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Understanding CW in Amateur Radio

What is CW?

A type of electromagnetic propagation

This is incorrect because CW refers to a mode of transmission, not a type of electromagnetic propagation.

A digital mode used primarily on 2 meter FM

This is incorrect because CW and Morse code are not primarily used on 2 meter FM; they are commonly used on various HF bands.

A technique for coil winding

CW does not refer to a technique for coil winding, so this answer is incorrect.

Another name for a Morse code transmission

This is correct because CW stands for Continuous Wave, which is commonly another name for a Morse code transmission.

Explanation

CW stands for Continuous Wave, a mode of radio communication that involves the transmission of a continuous signal. This mode is most commonly associated with Morse code, where the continuous signal is turned on and off to create the dots and dashes that encode the message. CW is significant in the history of radio communication because it was one of the earliest methods used, and it remains a popular mode among amateur radio operators today due to its simplicity and efficiency. CW can penetrate difficult environments and achieve long distances even at low power, making it a reliable mode of communication under various conditions. The ability to transmit Morse code by CW is considered a fundamental skill in the amateur radio community, often regarded as a cornerstone of radio proficiency.

T8D09 2022-2026

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