Continuous wave - Revision history

Moleski: /* Related articles */

2009-10-13T17:58:59Z

← Older revision		Revision as of 17:58, 13 October 2009
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	* [[Frequency, wavelength, and antenna tuning]].		* [[Frequency, wavelength, and antenna tuning]].
	* [[Morse code key questions]]		* [[Morse code key questions]]
	* [[Modulated continuous wave]].

	<!-- Please leave this category marker at the bottom. You may add this article to other categories if you wish -->		<!-- Please leave this category marker at the bottom. You may add this article to other categories if you wish -->
	[[Category:Radio considerations]]		[[Category:Radio considerations]]

Moleski at 17:58, 13 October 2009

2009-10-13T17:58:39Z

← Older revision		Revision as of 17:58, 13 October 2009
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	"In common usage and practice, C-W designates radiotelegraphy transmission using an unmodulated R-F carrier wave, turned on and off with a telegraph key to form the dits and dahs of Morse code. The 13-series transmitters were originally designed for voice operation only. The one aboard NR16020 was modified for C-W operation, primarily because of the requirement to operate on 500 KHz. This involved two major changes: alteration to the control circuitry; and the addition of a keying relay."		"In common usage and practice, C-W designates radiotelegraphy transmission using an unmodulated R-F carrier wave, turned on and off with a telegraph key to form the dits and dahs of Morse code. The 13-series transmitters were originally designed for voice operation only. The one aboard NR16020 was modified for C-W operation, primarily because of the requirement to operate on 500 KHz. This involved two major changes: alteration to the control circuitry; and the addition of a keying relay."

			In order to hear when the CW transmitter has been keyed, the receiver must have its own tone generator that beeps when the set receives a transmission.

	{\| border=1 cellpadding=5		{\| border=1 cellpadding=5
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	\|-		\|-
	\|A3		\|A3
	\|[[Voice Modulation]], radiotelephone		\|[[voice\|Voice Modulation]], radiotelephone
	\|}		\|}
	== Related articles ==		== Related articles ==

Moleski at 19:58, 6 October 2009

2009-10-06T19:58:59Z

← Older revision		Revision as of 19:58, 6 October 2009
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	\|-		\|-
	\|A3		\|A3
	\|radiotelephone~~; voice~~		\|[[Voice Modulation]], radiotelephone
	\|}		\|}
	== Related articles ==		== Related articles ==

Moleski at 10:43, 6 October 2009

2009-10-06T10:43:30Z

← Older revision		Revision as of 10:43, 6 October 2009
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	"A continuous wave or continuous waveform (CW) is an electromagnetic wave of constant amplitude and frequency. ... Continuous-wave radio was called radiotelegraphy because like the telegraph, it worked by means of a simple switch to transmit [[Morse code]]. However, instead of controlling the electricity in a cross-country wire, the switch controlled the power sent to a radio transmitter. This mode is still in common use by amateur radio operators."[http://en.wikipedia.org/wiki/Continuous_wave]		"A continuous wave or continuous waveform (CW) is an electromagnetic wave of constant amplitude and frequency. ... Continuous-wave radio was called radiotelegraphy because like the telegraph, it worked by means of a simple switch to transmit [[Morse code]]. However, instead of controlling the electricity in a cross-country wire, the switch controlled the power sent to a radio transmitter. This mode is still in common use by amateur radio operators."[http://en.wikipedia.org/wiki/Continuous_wave]

	In the discussion of the final flight, references to CW effectively mean "Morse code communications."		In the discussion of the final flight, references to CW effectively mean [[Morse code\|"Morse code communications."]]

	"In common usage and practice, C-W designates radiotelegraphy transmission using an unmodulated R-F carrier wave, turned on and off with a telegraph key to form the dits and dahs of Morse code. The 13-series transmitters were originally designed for voice operation only. The one aboard NR16020 was modified for C-W operation, primarily because of the requirement to operate on 500 KHz. This involved two major changes: alteration to the control circuitry; and the addition of a keying relay."		"In common usage and practice, C-W designates radiotelegraphy transmission using an unmodulated R-F carrier wave, turned on and off with a telegraph key to form the dits and dahs of Morse code. The 13-series transmitters were originally designed for voice operation only. The one aboard NR16020 was modified for C-W operation, primarily because of the requirement to operate on 500 KHz. This involved two major changes: alteration to the control circuitry; and the addition of a keying relay."

Moleski at 04:11, 24 February 2009

2009-02-24T04:11:16Z

← Older revision		Revision as of 04:11, 24 February 2009
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	\|-		\|-
	\|A2		\|A2
	\|[[~~Modified~~ continuous wave]] (MCW)		\|[[Modulated continuous wave]] (MCW)
	\|-		\|-
	\|A3		\|A3

Moleski at 04:10, 24 February 2009

2009-02-24T04:10:35Z

← Older revision		Revision as of 04:10, 24 February 2009
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	"In common usage and practice, C-W designates radiotelegraphy transmission using an unmodulated R-F carrier wave, turned on and off with a telegraph key to form the dits and dahs of Morse code. The 13-series transmitters were originally designed for voice operation only. The one aboard NR16020 was modified for C-W operation, primarily because of the requirement to operate on 500 KHz. This involved two major changes: alteration to the control circuitry; and the addition of a keying relay."		"In common usage and practice, C-W designates radiotelegraphy transmission using an unmodulated R-F carrier wave, turned on and off with a telegraph key to form the dits and dahs of Morse code. The 13-series transmitters were originally designed for voice operation only. The one aboard NR16020 was modified for C-W operation, primarily because of the requirement to operate on 500 KHz. This involved two major changes: alteration to the control circuitry; and the addition of a keying relay."

			{\| border=1 cellpadding=5
			\|+'''Classification of transmission modes'''
			\|-
			\|A1
			\|'''Continuous wave (CW)'''
			\|-
			\|A2
			\|[[Modified continuous wave]] (MCW)
			\|-
			\|A3
			\|radiotelephone; voice
			\|}
	== Related articles ==		== Related articles ==

Moleski at 03:28, 24 February 2009

2009-02-24T03:28:43Z

← Older revision		Revision as of 03:28, 24 February 2009
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	Abbreviated "'''CW'''."		Abbreviated "'''CW'''" or "'''C-W'''".

	"A continuous wave or continuous waveform (CW) is an electromagnetic wave of constant amplitude and frequency. ... Continuous-wave radio was called radiotelegraphy because like the telegraph, it worked by means of a simple switch to transmit [[Morse code]]. However, instead of controlling the electricity in a cross-country wire, the switch controlled the power sent to a radio transmitter. This mode is still in common use by amateur radio operators."[http://en.wikipedia.org/wiki/Continuous_wave]		"A continuous wave or continuous waveform (CW) is an electromagnetic wave of constant amplitude and frequency. ... Continuous-wave radio was called radiotelegraphy because like the telegraph, it worked by means of a simple switch to transmit [[Morse code]]. However, instead of controlling the electricity in a cross-country wire, the switch controlled the power sent to a radio transmitter. This mode is still in common use by amateur radio operators."[http://en.wikipedia.org/wiki/Continuous_wave]

	In the discussion of the final flight, references to CW effectively mean "Morse code communications."		In the discussion of the final flight, references to CW effectively mean "Morse code communications."

			"In common usage and practice, C-W designates radiotelegraphy transmission using an unmodulated R-F carrier wave, turned on and off with a telegraph key to form the dits and dahs of Morse code. The 13-series transmitters were originally designed for voice operation only. The one aboard NR16020 was modified for C-W operation, primarily because of the requirement to operate on 500 KHz. This involved two major changes: alteration to the control circuitry; and the addition of a keying relay."


	== Related articles ==		== Related articles ==

	* [[Frequency, wavelength, and antenna tuning]].		* [[Frequency, wavelength, and antenna tuning]].
			* [[Morse code key questions]]
	* [[Modulated continuous wave]].		* [[Modulated continuous wave]].

	<!-- Please leave this category marker at the bottom. You may add this article to other categories if you wish -->		<!-- Please leave this category marker at the bottom. You may add this article to other categories if you wish -->
	[[Category:Radio considerations]]		[[Category:Radio considerations]]

Moleski: New page: Abbreviated "'''CW'''." "A continuous wave or continuous waveform (CW) is an electromagnetic wave of constant amplitude and frequency. ... Continuous-wave radio was called radiotelegraph...

2009-02-24T02:59:03Z

New page: Abbreviated "'''CW'''." "A continuous wave or continuous waveform (CW) is an electromagnetic wave of constant amplitude and frequency. ... Continuous-wave radio was called radiotelegraph...

New page

Abbreviated "'''CW'''."

"A continuous wave or continuous waveform (CW) is an electromagnetic wave of constant amplitude and frequency. ... Continuous-wave radio was called radiotelegraphy because like the telegraph, it worked by means of a simple switch to transmit [[Morse code]]. However, instead of controlling the electricity in a cross-country wire, the switch controlled the power sent to a radio transmitter. This mode is still in common use by amateur radio operators."[http://en.wikipedia.org/wiki/Continuous_wave]

In the discussion of the final flight, references to CW effectively mean "Morse code communications."

== Related articles ==

* [[Frequency, wavelength, and antenna tuning]].
* [[Modulated continuous wave]].


[[Category:Radio considerations]]