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<blockquote data-quote="KARLEON" data-source="post: 464121" data-attributes="member: 541893"><p>F</p><p></p><p>Farad (F) The basic unit of capacitance. A capacitor has a capacitance of 1F when a charge of 1 Volt across the capacitor produces a current of 1 Ampere through it. Named after Michael Faraday.2</p><p></p><p>--------------------------------------------------------------------------------</p><p></p><p>FCC Federal Communication Commission. The U.S. government agency which oversees and regulates electronic communication.2</p><p></p><p>--------------------------------------------------------------------------------</p><p></p><p>FFT (Fast-Fourier Transform) A method by which a system is described using an impulse response. Both frequency and time data can be extracted, with room reflections removed, providing an extremely accurate analysis. Mathematical manipulation of the data is employed to view system parameters from a variety of perspectives.1</p><p></p><p>--------------------------------------------------------------------------------</p><p></p><p>Fidelity A term used to describe the accuracy of recording, reproduction, or general quality of audio processing.2</p><p></p><p>--------------------------------------------------------------------------------</p><p></p><p>FIR Filter (Finite Impulse Response Filter) A digital filter employing separate stages for each computation, offering virtual elimination of phase shift, and superior accuracy.1</p><p></p><p>--------------------------------------------------------------------------------</p><p></p><p>Fixed DIN Mount A DIN headunit mounting system whereby no part or component is removeable for security purposes.3</p><p></p><p>--------------------------------------------------------------------------------</p><p></p><p>Flashing Lights A term used to describe the interfacing of the vehicle's parking lights, dome light, emergency lights, etc., with a security system so that the lights flash by the system.2</p><p></p><p>--------------------------------------------------------------------------------</p><p></p><p>Flat Response An output signal in which fundamental frequencies and harmonics are in the same proportion as those of the input signal being amplified. A flat frequency response would exhibit relatively equal response to all fixed-point frequencies within a given spectrum.2</p><p></p><p>--------------------------------------------------------------------------------</p><p></p><p>FL Backlight Fluorescent illumination for the lighted portion of a liquid crystal display. Considered to be a step-up feature from EL backlight.1</p><p></p><p>--------------------------------------------------------------------------------</p><p></p><p>Fletcher-Munson Curves A set of curves that depict the uneven frequency response of human hearing.2</p><p></p><p>--------------------------------------------------------------------------------</p><p></p><p>Flux The flow of magnetic energy in a circuit.4</p><p></p><p>--------------------------------------------------------------------------------</p><p></p><p>FM See Frequency Modulation.2</p><p></p><p>--------------------------------------------------------------------------------</p><p></p><p>Foam Infused Surround A speaker surround design employing a foam material for improved durability and performance.1</p><p></p><p>--------------------------------------------------------------------------------</p><p></p><p>Fold Down Face A DIN headunit whose faceplate hinges at the bottom to reveal a media loading slot. Provides a larger area on the face for the display and controls.1</p><p></p><p>--------------------------------------------------------------------------------</p><p></p><p>Former The cylinder portion of a speaker's voice coil; the wire is wound around this cylinder to form a coil.4</p><p></p><p>--------------------------------------------------------------------------------</p><p></p><p>Fourth-Order Rolloff The frequency .4</p><p></p><p>--------------------------------------------------------------------------------</p><p></p><p>Free Air Response The frequency at which a speaker will naturally resonate.2</p><p></p><p>--------------------------------------------------------------------------------</p><p></p><p>Frequency The term in physics that refers to a number of vibrations or cycles that occur within a given time.2</p><p></p><p>--------------------------------------------------------------------------------</p><p></p><p>Frequency Counter A device that assists in speaker parameter testing, as well as identifying the frequency of specific tones .2</p><p></p><p>--------------------------------------------------------------------------------</p><p></p><p>Frequency Modulation (FM) A method of modulation in which the frequency of the carrier voltage is varied with the frequency of the modulation voltage (Also see Amplitude Modulation).2</p><p></p><p>--------------------------------------------------------------------------------</p><p></p><p>Frequency Response A term which describes the relationship between a device's input and output with regard to signal frequency and amplitude.2</p><p></p><p>--------------------------------------------------------------------------------</p><p></p><p>Full Logic Deck A cassette mechanism where the tape operations are carried out by logic circuits rather than mechanical methods.1</p><p></p><p>--------------------------------------------------------------------------------</p><p></p><p>Fuse A device designed to provide protection for a given circuit or device by physically opening the circuit. Fuses are rated by their amperage and are designed to blow or open when the current being drawn through it exceeds its design rating.2</p><p></p><p>--------------------------------------------------------------------------------</p><p></p><p>Fusible Link Designed to perform the same task as a fuse, but the resembles a wire. Fusible links are commonly used in ignition switches and other high current circuits.2</p></blockquote><p></p>
[QUOTE="KARLEON, post: 464121, member: 541893"] F Farad (F) The basic unit of capacitance. A capacitor has a capacitance of 1F when a charge of 1 Volt across the capacitor produces a current of 1 Ampere through it. Named after Michael Faraday.2 -------------------------------------------------------------------------------- FCC Federal Communication Commission. The U.S. government agency which oversees and regulates electronic communication.2 -------------------------------------------------------------------------------- FFT (Fast-Fourier Transform) A method by which a system is described using an impulse response. Both frequency and time data can be extracted, with room reflections removed, providing an extremely accurate analysis. Mathematical manipulation of the data is employed to view system parameters from a variety of perspectives.1 -------------------------------------------------------------------------------- Fidelity A term used to describe the accuracy of recording, reproduction, or general quality of audio processing.2 -------------------------------------------------------------------------------- FIR Filter (Finite Impulse Response Filter) A digital filter employing separate stages for each computation, offering virtual elimination of phase shift, and superior accuracy.1 -------------------------------------------------------------------------------- Fixed DIN Mount A DIN headunit mounting system whereby no part or component is removeable for security purposes.3 -------------------------------------------------------------------------------- Flashing Lights A term used to describe the interfacing of the vehicle's parking lights, dome light, emergency lights, etc., with a security system so that the lights flash by the system.2 -------------------------------------------------------------------------------- Flat Response An output signal in which fundamental frequencies and harmonics are in the same proportion as those of the input signal being amplified. A flat frequency response would exhibit relatively equal response to all fixed-point frequencies within a given spectrum.2 -------------------------------------------------------------------------------- FL Backlight Fluorescent illumination for the lighted portion of a liquid crystal display. Considered to be a step-up feature from EL backlight.1 -------------------------------------------------------------------------------- Fletcher-Munson Curves A set of curves that depict the uneven frequency response of human hearing.2 -------------------------------------------------------------------------------- Flux The flow of magnetic energy in a circuit.4 -------------------------------------------------------------------------------- FM See Frequency Modulation.2 -------------------------------------------------------------------------------- Foam Infused Surround A speaker surround design employing a foam material for improved durability and performance.1 -------------------------------------------------------------------------------- Fold Down Face A DIN headunit whose faceplate hinges at the bottom to reveal a media loading slot. Provides a larger area on the face for the display and controls.1 -------------------------------------------------------------------------------- Former The cylinder portion of a speaker's voice coil; the wire is wound around this cylinder to form a coil.4 -------------------------------------------------------------------------------- Fourth-Order Rolloff The frequency .4 -------------------------------------------------------------------------------- Free Air Response The frequency at which a speaker will naturally resonate.2 -------------------------------------------------------------------------------- Frequency The term in physics that refers to a number of vibrations or cycles that occur within a given time.2 -------------------------------------------------------------------------------- Frequency Counter A device that assists in speaker parameter testing, as well as identifying the frequency of specific tones .2 -------------------------------------------------------------------------------- Frequency Modulation (FM) A method of modulation in which the frequency of the carrier voltage is varied with the frequency of the modulation voltage (Also see Amplitude Modulation).2 -------------------------------------------------------------------------------- Frequency Response A term which describes the relationship between a device's input and output with regard to signal frequency and amplitude.2 -------------------------------------------------------------------------------- Full Logic Deck A cassette mechanism where the tape operations are carried out by logic circuits rather than mechanical methods.1 -------------------------------------------------------------------------------- Fuse A device designed to provide protection for a given circuit or device by physically opening the circuit. Fuses are rated by their amperage and are designed to blow or open when the current being drawn through it exceeds its design rating.2 -------------------------------------------------------------------------------- Fusible Link Designed to perform the same task as a fuse, but the resembles a wire. Fusible links are commonly used in ignition switches and other high current circuits.2 [/QUOTE]
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