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- MHz, signal must be at least 0.4 div amplitude; requirements increase above 2 MHz; at 60 MHz, signal must be at least 1.5 div amplitude.</td>13 KB (1,920 words) - 22:52, 15 September 2010
- MHz, signal must be at least 0.4 div amplitude; requirements increase above 2 MHz; at 60 MHz, signal must be at least 1.5 div amplitude.</td>12 KB (1,907 words) - 22:47, 15 September 2010
- ...or ICT, is another variant of TENS that uses the principle of [[amplitude modulation]] to decrease the discomfort of stimulating deeper [[Tissue (biology)|tissu17 KB (2,442 words) - 22:06, 21 September 2010
- ...logue signals and combine them into one [[Pulse-amplitude modulation|pulse amplitude modulated]] (PAM) wide-band analogue signal. Alternatively, a digital TDM m14 KB (2,056 words) - 18:11, 9 December 2011
- ...quency]] (''IF'') signal that can be processed downstream to extract the [[modulation|modulated]] information. The IF signal frequency is chosen to be either the A plot of a VFO's amplitude vs. frequency may show several peaks, probably [[harmonic]]ally related. E12 KB (1,805 words) - 14:48, 10 December 2011
- ...essentially reproducing the "missing" carrier. (An [[Amplitude modulation|amplitude modulated]] carrier has dual complementary sidebands and thus requires twic4 KB (569 words) - 14:48, 10 December 2011
- ...lecting the narrow {{nowrap|2 kHz}} bandwidth signals in [[single-sideband modulation|SSB]] radio receivers. It operates at {{nowrap|455 kHz}}, a common [[inter ...ing cantilever. Cursors on the picture indicate that the [[peak-to-peak]] amplitude of the vibration is 17.57μm.|'''Figure 12.''' MEMS cantilever resonator. T52 KB (7,784 words) - 14:49, 10 December 2011
- ...h as [[Frequency modulation]] (FM) or [[Amplitude modulation]] (AM), or no modulation at all. Some textbooks also consider [[passband]] data transmission using a [[digital modulation method]]s such as ASK, PSK and QAM, i.e. a sinewave modulated by a digital4 KB (529 words) - 14:50, 10 December 2011
- ...ystal [[detector (radio)|detector]] which extracts the [[audio signal]] ([[modulation]]) from the radio frequency [[carrier wave]]. It does this by only allowi [[File:Amplitude modulation detection.png|thumb|250px|<span style="color:red;">Fig. 6</span> How the cr73 KB (10,437 words) - 14:50, 10 December 2011
- ...d with the input signal. The resulting output signal included the original modulation information. The intent was to develop an alternative receiver circuit tha *General parameters: Such as power consumption, supply voltage range, output amplitude, etc.37 KB (5,933 words) - 14:50, 10 December 2011
- ...the signal from an Alexanderson Alternator did not have any such inherent modulation and Morse Code from one of those would only be heard as a series of clicks ...mplification problem, since the beat frequency still retained its original modulation, but on a lower carrier frequency. To monitor a frequency of 1500 kHz31 KB (4,651 words) - 14:50, 10 December 2011
- ==Modulation== ...f a sinusoidal voltage [[wave]]form by the source information, [[frequency modulation]] changes the [[frequency]]. Other techniques, such as changing the [[phase7 KB (902 words) - 14:50, 10 December 2011
- {{Modulation techniques}} ...-sideband suppressed-carrier'' (''SSB-SC'') is a refinement of [[amplitude modulation]] that more efficiently uses [[electric power|electrical power]] and [[band17 KB (2,658 words) - 14:51, 10 December 2011
- ...] (PM) as well as a second oscillator that provides an [[audio frequency]] modulation waveform. ...y modulation|FM]], [[Phase modulation|ΦM (phase modulation)]] and [[pulse modulation]]. Another common feature is a built-in [[Attenuator (electronics)|attenuat13 KB (1,767 words) - 14:51, 10 December 2011
- ...methods—color [[saturation (color theory)|saturation]], encoded as the [[amplitude]], or [[gain]], of the subcarrier signal, and [[hue]], encoded as the subca ...itable for broadcast and are not [[broadcast-safe]]. 75% bars have reduced amplitude and are broadcast-safe.7 KB (1,016 words) - 14:51, 10 December 2011
- ...[[frequency mixer]], to convert the signal's [[phase (waves)|phase]] and [[amplitude]] to a DC—actually a time-varying low-frequency—voltage signal. ...cally, many applications of the lock-in only require recovering the signal amplitude rather than relative phase to the reference signal. For these purposes, loc11 KB (1,574 words) - 14:51, 10 December 2011
- ...19, 2011.</ref>. These measurements are used to determine the quality of [[modulation]] and can be used for design validation and compliance testing of electroni ...odulated by a digital [[modulation]] scheme such as [[quadrature amplitude modulation]] or [[phase-shift keying]]. This diagram maps the magnitude of the [[quadr5 KB (701 words) - 14:51, 10 December 2011
- *'''[[Spectrum analyzer]]s''' are intended to graphically display the amplitude spectrum of a radio signal on a logarithmic scale. ...ulation (such as [[Amplitude modulation|AM]] depth, FM/PM deviations), and modulation distortions.5 KB (718 words) - 14:51, 10 December 2011
- ...lse repetition rate and duration may be digitally controlled but the pulse amplitude and rise and fall times may be determined by analog circuitry in the output ...equivalent to electrical pulse generators with rep rate, delay, width and amplitude control. The output in this case is light typically from a LED or laser dio6 KB (884 words) - 14:51, 10 December 2011
- ...is usually also provided, allowing the detection of [[Amplitude modulation|amplitude-modulated]] signals. ...s that are normally used for other modulation schemes (such as [[Frequency modulation|FM]] radios) can be tested by using an AM test signal for testing the [[rad2 KB (253 words) - 14:51, 10 December 2011
