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• Analog signal
  ...the [[frequency]]. Other techniques, such as changing the [[phase (waves)|phase]] of the base signal also work.
  7 KB (902 words) - 14:50, 10 December 2011
• Voltage-controlled oscillator
  ...s may also be fed into the VCO to cause [[frequency modulation]] (FM) or [[phase modulation]] (PM); a VCO with digital pulse output may similarly have its .../math> is the symbol for the time-domain waveform that is the VCO's output phase.
  11 KB (1,653 words) - 14:51, 10 December 2011
• Single-sideband modulation
  ...9382|John Carson/AT&T: "Method and Means for Signaling with High Frequency Waves" filed on December 1, 1915; granted on March 27, 1923}}</ref> for SSB modul The presence of two out-of-phase (quadrature) carrier waves is now evident.
  17 KB (2,658 words) - 14:51, 10 December 2011
• Signal generator
  ...such as [[amplitude modulation]] (AM), [[frequency modulation]] (FM), or [[phase modulation]] (PM) as well as a second oscillator that provides an [[audio f ...tude modulation|AM]], [[Frequency modulation|FM]], [[Phase modulation|ΦM (phase modulation)]] and [[pulse modulation]]. Another common feature is a built-i
  13 KB (1,767 words) - 14:51, 10 December 2011
• Vectorscope
  ...osition, used for measuring [[differential gain]] and [[differential phase|phase]]. ...l (and component analog) vectorscopes, colorburst doesn't exist; hence the phase relationship between the colorburst signal and the chroma subcarrier is sim
  7 KB (1,016 words) - 14:51, 10 December 2011
• Lock-in amplifier
  ...ng, through a [[frequency mixer]], to convert the signal's [[phase (waves)|phase]] and [[amplitude]] to a DC&mdash;actually a time-varying low-frequency&mda The device is often used to measure [[phase shift]], even when the signals are large and of high [[signal-to-noise rati
  11 KB (1,574 words) - 14:51, 10 December 2011
• Current clamp
  ...but in conjunction with more advanced instrumentation the [[Phase (waves)|phase]] and [[waveform]] are available. Very high alternating currents (1000&nbsp ...currents flowing in the conductors and would depend on the [[phase (waves)|phase]] relationship of the currents. In particular if the clamp is closed around
  7 KB (1,070 words) - 14:51, 10 December 2011
• Network analyzer (electrical)
  ...}}'''Vector Network Analyzer''' (VNA)&nbsp;— measures both amplitude and phase properties A VNA may also be called a '''gain-phase meter''' or an '''Automatic Network Analyzer'''. An SNA is functionally ide
  12 KB (1,824 words) - 14:51, 10 December 2011
• Wien bridge oscillator
  ...ility criterion|Barkhausen conditions]]: its loop gain must be one and the phase around the loop must be a multiple of 360 degrees. The linear oscillator th
  17 KB (2,498 words) - 14:52, 10 December 2011
• Oscilloscope history
  ...stem that can move with sufficient speed to match the motion of the actual waves being measured. This was done with the development of the ''moving-coil osc ...aking it possible to measure properties of the waveform such as frequency, phase, rise time, and others, that would not otherwise be possible.<ref>{{Harvtxt
  19 KB (2,799 words) - 14:52, 10 December 2011
• Arbitrary waveform generator
  ...or ratio-related frequencies. This allows the generation of polyphase sine waves, I-Q constellations, or simulation of signals from geared mechanical system
  4 KB (608 words) - 14:52, 10 December 2011
• Oscilloscope
  ...ering allows the display of periodic signals such as sine waves and square waves, as well as nonperiodic signals such as single pulses, or pulses that don't ...rically-small ratio. They also indicated phase difference between two sine waves of the same frequency.
  56 KB (8,370 words) - 14:52, 10 December 2011

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