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half-power frequency

См. также в других словарях:

  • Half power point — The half power point of an electronic amplifier stage is that frequency at which the output power has dropped to half of its mid band level. This occurs when the output voltage has dropped by 3 dB and the power has dropped by half. A bandpass… …   Wikipedia

  • Power supply — For the Budgie album, see Power Supply (album). A vacuum tube rackmount adjustable power supply, capable of +/ 1500 volts DC, 0 to 100mA output, with amperage limiting capability. A power supply is a device that supplies electrical energy …   Wikipedia

  • Power control — Power control, broadly speaking, is the intelligent selection of transmit power in a communication system to achieve good performance within the system. The notion of good performance can depend on context and may include optimizing metrics such… …   Wikipedia

  • Power chord — Component intervals from root perfect fifth root …   Wikipedia

  • Power dividers and directional couplers — A 10 dB 1.7–2.2 GHz directional coupler. From left to right: input, coupled, isolated (terminated with a load), and transmitted port …   Wikipedia

  • Frequency comb — A frequency comb is the graphic representation of the spectrum of a mode locked laser. An octave spanning comb can be used for mapping radio frequencies into the optical frequency range or it can be used to steer a piezoelectric mirror within a… …   Wikipedia

  • Frequency — For other uses, see Frequency (disambiguation). Three cyclically flashing lights, from lowest frequency (top) to highest frequency (bottom). f is the frequency in hertz (Hz), meaning the number of cycles per second. T is the period in seconds (s) …   Wikipedia

  • Frequency divider — A frequency divider, also called a clock divider or scaler or prescaler, is a circuit that takes an input signal of a frequency, fin, and generates an output signal of a frequency: where n is an integer. Phase locked loop frequency synthesizers… …   Wikipedia

  • Frequency-shift keying — Passband modulation v · d · e Analog modulation AM · …   Wikipedia

  • Frequency (radio station) — Infobox Radio Station name = Frequency 1350 city = Preston, Lancashire area = UK: Preston MW Online | branding = slogan = Your Student Station airdate = Late 2001 frequency = MW: 1350 MHz share = 0.000000000000000000000000000000000000001% share… …   Wikipedia

  • Frequency analysis — In cryptanalysis, frequency analysis is the study of the frequency of letters or groups of letters in a ciphertext. The method is used as an aid to breaking classical ciphers.this is wrong is based on the fact that, in any given stretch of… …   Wikipedia

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