R - Revision history

QSO: /* R */ Added "rubber duck"

2014-06-07T14:23:32Z

R: Added "rubber duck"

← Older revision		Revision as of 07:23, 7 June 2014
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	'''RTTY''' : Radioteletype.		'''RTTY''' : Radioteletype.

	'''[[Codes and Alphabets#RSV code \|RSV code]]''' used to describe the readability, stength and video quality of SSTV transmissions		'''[[Codes and Alphabets#RSV code \|RSV code]]''' : used to describe the readability, stength and video quality of SSTV transmissions

			'''[[Rubber duck]]''' : Nickname for the flexible rubber antennas supplied with many handheld transceivers.

	'''RX''' : Abbreviation for receive or receiver		'''RX''' : Abbreviation for receive or receiver

TimVK4YEH: added rf

2010-12-21T05:51:27Z

added rf

← Older revision		Revision as of 22:51, 20 December 2010
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	'''[[Resistors \| Resistor]]''' : A device that opposes the flow of electric current.		'''[[Resistors \| Resistor]]''' : A device that opposes the flow of electric current.

			'''RF''' : '''R'''adio '''F'''requencies : Frequencies that can pass through space as electromagnetic radiation.

	'''[[QRM \| RFI]]''' : Radio Frequency Interference (also '''BCI''' - broadcast interference, '''TVI''' - television interference). Normally resolved by installation of [[filter]]s at the transmitter, the affected receiver(s) or both.		'''[[QRM \| RFI]]''' : Radio Frequency Interference (also '''BCI''' - broadcast interference, '''TVI''' - television interference). Normally resolved by installation of [[filter]]s at the transmitter, the affected receiver(s) or both.

TimVK4YEH: /* R */

2010-11-03T08:26:28Z

← Older revision		Revision as of 01:26, 3 November 2010
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	'''RMS''' : Root Mean Square. Calculated by squaring each of the values on a signal, calculating the mean of the squares, and then taking the square root of the mean. approximately 0.707 of the peak value.		'''RMS''' : Root Mean Square. Calculated by squaring each of the values on a signal, calculating the mean of the squares, and then taking the square root of the mean. approximately 0.707 of the peak value.

	'''ROS Digital''' : An MFSK digital mode created in 2009.		'''[http://rosmodem.wordpress.com/ ROS Digital]''' : An MFSK digital mode created in 2009.

	'''[http://www.rsgb.org/ RSGB]''' : Radio Society of Great Britain - national amateur radio organisation of UK.		'''[http://www.rsgb.org/ RSGB]''' : Radio Society of Great Britain - national amateur radio organisation of UK.

TimVK4YEH: /* R */

2010-11-03T08:25:39Z

← Older revision		Revision as of 01:25, 3 November 2010
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	'''RMS''' : Root Mean Square. Calculated by squaring each of the values on a signal, calculating the mean of the squares, and then taking the square root of the mean. approximately 0.707 of the peak value.		'''RMS''' : Root Mean Square. Calculated by squaring each of the values on a signal, calculating the mean of the squares, and then taking the square root of the mean. approximately 0.707 of the peak value.

			'''ROS Digital''' : An MFSK digital mode created in 2009.

	'''[http://www.rsgb.org/ RSGB]''' : Radio Society of Great Britain - national amateur radio organisation of UK.		'''[http://www.rsgb.org/ RSGB]''' : Radio Society of Great Britain - national amateur radio organisation of UK.

TimVK4YEH: fixed spelling error

2009-11-18T03:35:55Z

fixed spelling error

← Older revision		Revision as of 20:35, 17 November 2009
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	'''[[QRM \| RFI]]''' : Radio Frequency Interference (also '''BCI''' - broadcast interference, '''TVI''' - television interference). Normally resolved by installation of [[filter]]s at the transmitter, the affected receiver(s) or both.		'''[[QRM \| RFI]]''' : Radio Frequency Interference (also '''BCI''' - broadcast interference, '''TVI''' - television interference). Normally resolved by installation of [[filter]]s at the transmitter, the affected receiver(s) or both.

	'''Ripple''' : The residual AC left over after ~~r3ectification~~ and filtering when an AC supply has been converted to DC'		'''Ripple''' : The residual AC left over after rectification and filtering when an AC supply has been converted to DC'

	'''[[Operating_procedures#RIT \| RIT]]''' : Receive Incremental Tuning, '''R'''eceive '''I'''ndependant of '''T'''ransmit. The ability to shift the receive frequency of a transceiver away from the transmit frequency by a small amount.		'''[[Operating_procedures#RIT \| RIT]]''' : Receive Incremental Tuning, '''R'''eceive '''I'''ndependant of '''T'''ransmit. The ability to shift the receive frequency of a transceiver away from the transmit frequency by a small amount.

Carlb: /* R */

2009-11-16T14:39:05Z

← Older revision		Revision as of 07:39, 16 November 2009
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	==R==		==R==

	'''Regulator''' : A device - often a Zener Diode~~, that~~ maintains a constant output voltage over a range of load currents and input voltages.		'''Regulator''' : A device - often built to employ a Zener Diode as reference - which maintains a constant output voltage over a range of load currents and input voltages.

	'''[[Repeater \| Repeater]]''' : A transceiver - often comprised of separate transmitted and receiver linked by controlling hardware. A repeater picks up a radio signal and re-transmits it, allowing weak stations to be heard from further away than normally possible.		'''[[Repeater \| Repeater]]''' : A transceiver - often comprised of separate transmitted and receiver linked by controlling hardware. A repeater picks up a radio signal and re-transmits it, allowing weak stations to be heard from further away than normally possible.

TimVK4YEH: fixed error

2009-11-16T09:30:34Z

fixed error

← Older revision		Revision as of 02:30, 16 November 2009
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	==R==		==R==

	'''Regulator''' : A ~~device~~ device - often a Zener Diode, that maintains a constant output voltage over a range of load currents and input voltages.		'''Regulator''' : A device - often a Zener Diode, that maintains a constant output voltage over a range of load currents and input voltages.

	'''[[Repeater \| Repeater]]''' : A transceiver - often comprised of separate transmitted and receiver linked by controlling hardware. A repeater picks up a radio signal and re-transmits it, allowing weak stations to be heard from further away than normally possible.		'''[[Repeater \| Repeater]]''' : A transceiver - often comprised of separate transmitted and receiver linked by controlling hardware. A repeater picks up a radio signal and re-transmits it, allowing weak stations to be heard from further away than normally possible.

TimVK4YEH: rtty

2009-07-11T09:10:50Z

rtty

← Older revision		Revision as of 02:10, 11 July 2009
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	'''[[Codes and Alphabets#RST code \| RST code]]''' Used to describe the readability, strength and tone of voice or CW transmissions.		'''[[Codes and Alphabets#RST code \| RST code]]''' Used to describe the readability, strength and tone of voice or CW transmissions.

			'''RTTY''' : Radioteletype.

	'''[[Codes and Alphabets#RSV code \|RSV code]]''' used to describe the readability, stength and video quality of SSTV transmissions		'''[[Codes and Alphabets#RSV code \|RSV code]]''' used to describe the readability, stength and video quality of SSTV transmissions

	'''RX''' : Abbreviation for receive or receiver		'''RX''' : Abbreviation for receive or receiver

TimVK4YEH: link RFI to QRM page

2009-07-07T18:18:50Z

link RFI to QRM page

← Older revision		Revision as of 11:18, 7 July 2009
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	'''[[Resistors \| Resistor]]''' : A device that opposes the flow of electric current.		'''[[Resistors \| Resistor]]''' : A device that opposes the flow of electric current.

	'''RFI''' : Radio Frequency Interference (also '''BCI''' - broadcast interference, '''TVI''' - television interference). Normally resolved by installation of [[filter]]s at the transmitter, the affected receiver(s) or both.		'''[[QRM \| RFI]]''' : Radio Frequency Interference (also '''BCI''' - broadcast interference, '''TVI''' - television interference). Normally resolved by installation of [[filter]]s at the transmitter, the affected receiver(s) or both.

	'''Ripple''' : The residual AC left over after r3ectification and filtering when an AC supply has been converted to DC'		'''Ripple''' : The residual AC left over after r3ectification and filtering when an AC supply has been converted to DC'

TimVK4YEH: ripple

2009-07-01T06:54:20Z

ripple

← Older revision		Revision as of 23:54, 30 June 2009
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	'''RFI''' : Radio Frequency Interference (also '''BCI''' - broadcast interference, '''TVI''' - television interference). Normally resolved by installation of [[filter]]s at the transmitter, the affected receiver(s) or both.		'''RFI''' : Radio Frequency Interference (also '''BCI''' - broadcast interference, '''TVI''' - television interference). Normally resolved by installation of [[filter]]s at the transmitter, the affected receiver(s) or both.

			'''Ripple''' : The residual AC left over after r3ectification and filtering when an AC supply has been converted to DC'

	'''[[Operating_procedures#RIT \| RIT]]''' : Receive Incremental Tuning, '''R'''eceive '''I'''ndependant of '''T'''ransmit. The ability to shift the receive frequency of a transceiver away from the transmit frequency by a small amount.		'''[[Operating_procedures#RIT \| RIT]]''' : Receive Incremental Tuning, '''R'''eceive '''I'''ndependant of '''T'''ransmit. The ability to shift the receive frequency of a transceiver away from the transmit frequency by a small amount.