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== Operator proficiency ==
[[File:Bencher paddle.jpg|thumb|A commercially manufactured iambic paddle used in conjunction with an electronic [[keyer]] to generate high-speed Morse code, the timing of which is controlled by the
These modern "iambic" keys are operated by one or two "paddles" pressed left and right, instead of pressing down a lever, as in the traditional telegraph keys, pictured at the start of this article. Operating paddle keys is similar to using the old [[Vibroplex]] clockwork telegraph keys: Pressing the paddle to the right generates a series of repeated ''dits'' until the paddle is released; pressing the paddle to the left produces a similar series of ''dahs''; and with two-paddle electronic keys, squeezing the two paddles from both sides produces an alternating {{nowrap| ''dit dah dit dah'' }} sequence.
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