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automatic frequency control |
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automatic frequency control: see automatic tuning control automatic tuning control (ATC), method or device to keep a radio or television receiver automatically tuned to a desired frequency or channel. Assuming that the receiver is at least approximately tuned to the desired frequency, a circuit in the receiver develops an ..... Click the link for more information. . automatic frequency control [¦ȯd·ə¦mad·ik ′frē·kwən·sē kən‚trōl] (electronics) Abbreviated AFC. A circuit used to maintain the frequency of an oscillator within specified limits, as in a transmitter. A circuit used to keep a superheterodyne receiver tuned accurately to a given frequency by controlling its local oscillator, as in an FM receiver. A circuit used in radar superheterodyne receivers to vary the local oscillator frequency so as to compensate for changes in the frequency of the received echo signal. A circuit used in television receivers to make the frequency of a sweep oscillator correspond to the frequency of the synchronizing pulses in the received signal. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Pertinent Data: The Solutions Series are equipped with standard integrated controls, 2000 W of available output power, variable output amplitude control, automatic frequency control adjusts, digital adjustable controls for weld time, hold time, delay time, . The device features variable-output amplitude control and automatic frequency control that adjusts and tunes the horn prior to welding. Integrated on the transceivers are 12-bit, 160 mega-samples-per-second (MSPS) ADCs and DACs, along with smart system features such as self-calibration, automatic gain control, transmit power control, support for automatic frequency control, and auxiliary ADCs and DACs for system monitoring. |
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