frequency deviation การใช้

• Both the average phase and the average frequency deviation are thus zero.
• If the frequency deviation is held constant and the modulation frequency increased, the spacing between spectra increases.
• AM broadcasting uses a channel spacing of 10 kHz, but with amplitude modulation frequency deviation is irrelevant.
• There are also variations in the concentrations of the required buffer gases, which variations cause frequency deviations.
• FRS rules permit only 2.5 kHz ( Narrowband FM ) frequency deviation on the FRS shared channels.
• The down conversion does not affect the frequency deviation; it only shifts all the signal frequency components down.
• Generally, FM demodulators are not affected by amplitude variations, since the baseband is contained in the frequency deviations.
• It also differs from frequency deviation, which is the inherent and necessary result of modulation in both FM and phase modulation.
• Portable generators, not connected to a utility system, need not tightly regulate their frequency, because typical loads are insensitive to small frequency deviations.
• The grid-friendly technology demonstration showed that common residential appliances did automatically detect grid problems expressed as frequency deviations and reduced energy consumption at critical moments.
• The closed loop operates to correct such frequency deviations; higher performance PLL reduces these fluctuations to lower values, however these deviations can never be stopped.
• In half transponder mode, the frequency deviation of the composite baseband signal is reduced to 18 MHz to allow another signal in the other half of the 36 MHz transponder.
• The frequency deviation of a radio is of particular importance in relation to bandwidth, because less deviation means that more channels can fit into the same amount of frequency spectrum.
• For a sine wave modulation, the modulation index is seen to be the ratio of the peak frequency deviation of the carrier wave to the frequency of the modulating sine wave.
• Where the amplitude A _ { m } \, of the modulating sinusoid is represented by the peak deviation f _ { \ Delta } \, ( see frequency deviation ).
• In addition, for a frequency deviation within the hold-in range, after a small changes in input frequency loop re-achieves a new locked state ( tracking process ).
• For the supply of Frequency Containment Reserve, each Caterva Sun is provided with its own control unit, so that it can react on a stand-alone basis to grid frequency deviations.
• Small frequency deviations ( i . e .-0.5 Hz on a 50 Hz or 60 Hz network ) will result in automatic load shedding or other control actions to restore system frequency.
• Where W is the highest frequency in the modulating signal but non-sinusoidal in nature and D is the Deviation ratio which the ratio of frequency deviation to highest frequency of modulating non-sinusoidal signal.
• The code frequency deviation is 1 / 1, 540 times the carrier frequency deviation for L1 because the code frequency is 1 / 1, 540 of the carrier frequency ( see ?Frequencies used by GPS ).