Physics

A fiber optics cable does not have

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When a phase-locked loop is used as an FM demodulator, the output is the same as the

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In general, the capture range of a PLL is

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When a phase-locked loop is locked, the difference frequency (fi - f0) is

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A basic phase-locked loopRefer to Figure 4. The block with the ? represents the

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Before a phase-locked loop (PLL) is locked the VCO is said to be

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Refer to Figure 3. This circuit is a basic

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In an AM receiver, the output signal from the IF amplifier will have

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In an AM receiver, the input signal to the IF amplifier will have

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To create the difference frequency in an AM mixer, the process uses

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In a balanced AM modulator there is

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Amplitude modulation is essentially a

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The process of modifying a high frequency carrier by a low frequency signal is called

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In a linear multiplier, the constant K is a number that is a(n)

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A linear four-quadrant multiplier can basically

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The purpose of AGC is to

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In an AM or FM receiver, the local oscillator is tuned to the

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Block diagram for an FM radio receiverRefer to Figure 2. The block with the ? represents the

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Block diagram for an AM radio receiverRefer to Figure 1. The block with the ? represents the

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The RF amplifier in both AM and FM receivers is tuned to

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To recover the audio from an AM signal, the receiver uses

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Both AM and FM receivers have a

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Light is transmitted in a fiber optics system primarily by refraction.

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Transmitting signals with fiber optics is faster than using solid wires.

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In a phase-locked loop, the phase-detector output is an error voltage.

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