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1. The Free On-line Dictionary of Computing (30 December 2018) |
continuous wave
CW
(CW) A term from early radio history
for a transmitter using an electron tube (valve) oscillator
to constantly add energy to a tuned circuit connected to an
antenna.
The term is used in contrast with the use of a spark gap to
initiate a damped sinusoidal wave in a tuned circuit consisting
of an inductor and capacitor. The energy in this circuit
constantly changes between the capacitor's electrostatic field
and the inductor's magnetic field. The energy is then coupled
to the radiating antenna, loosely (so as not to dampen the wave
too quickly).
Some radio amateurs understand "CW" to mean transmission by
means a single frequency signal which is either on or off
(e.g. Morse code), as opposed to a carrier which varies
continuously in amplitude, frequency or phase. Some would
even call the former "unmodulated" even though turning on and
off is actually the most extreme form of amplitude modulation.
(2009-11-24)
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Common Misspellings > |
cw wcw wc cwc w ccw wcw c cww sw csw scw dw cdw dcw fw cfw fcw xw cxw xcw vw cvw vcw w c w cw c2 cw2 c2w c@ cw@ c@w c3 cw3 c3w cq cwq cqw ce cwe cew ca cwa caw cs cws csw cd cwd cdw Definition commonly spelled as: Defanition or Defenition, Synonym as: Synonim, Sinonym or Sinonim, Thesaurus as: Thesorus or Thesauris, Dictionary as: Dictionery or Dictionry and Define is usually not misspelled. What does mispell meen? It Meens...
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