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E7E11 - Which type of detector is used for demodulating SSB signals?
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0
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0
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January 2, 2026
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E7E10 - How does a diode envelope detector function?
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0
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0
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January 2, 2026
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E7E09 - What occurs when the input signal levels to a mixer are too high?
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0
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0
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January 2, 2026
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E7E08 - What are the principal frequencies that appear at the output of a mixer?
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0
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0
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January 2, 2026
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E7E07 - What is meant by the term "baseband" in radio communications?
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0
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0
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January 2, 2026
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E7E06 - Why is de-emphasis used in FM communications receivers?
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0
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0
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January 2, 2026
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E7E05 - What is added to an FM speech channel to boost the higher audio frequencies?
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0
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0
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January 2, 2026
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E7E04 - What is one way to produce a single-sideband phone signal?
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0
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0
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January 2, 2026
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E7E03 - What is a frequency discriminator?
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0
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0
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January 2, 2026
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E7E02 - What is the function of a reactance modulator?
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0
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0
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January 2, 2026
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E7E01 - Which of the following can be used to generate FM phone signals?
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0
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0
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January 2, 2026
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E7D15 - What is the purpose of a step-start circuit in a high-voltage power supply?
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0
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0
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January 2, 2026
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E7D14 - What is the purpose of connecting equal-value resistors across power supply filter capacitors connected in series?
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0
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0
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January 2, 2026
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E7D13 - Which of the following calculates power dissipated by a series linear voltage regulator?
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0
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0
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January 2, 2026
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E7D12 - What is the dropout voltage of a linear voltage regulator?
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0
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0
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January 2, 2026
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E7D11 - What is the purpose of an inverter connected to a solar panel output?
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0
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0
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January 2, 2026
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E7D09 - How is battery operating time calculated?
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0
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0
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January 2, 2026
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E7D08 - What type of circuit is shown in Figure E7-2?
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0
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1
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January 2, 2026
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E7D07 - What is the purpose of C2 in the circuit shown in Figure E7-2?
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0
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1
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January 2, 2026
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E7D06 - What is the purpose of Q1 in the circuit shown in Figure E7-2?
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0
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1
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January 2, 2026
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E7D05 - Which of the following types of linear voltage regulator operates by loading the unregulated voltage source?
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0
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0
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January 2, 2026
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E7D03 - What device is used as a stable voltage reference?
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0
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0
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January 2, 2026
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E7D02 - How does a switchmode voltage regulator work?
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0
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0
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January 2, 2026
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E7D01 - How does a linear electronic voltage regulator work?
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0
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1
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January 2, 2026
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E7C11 - Which of the following measures a filter's ability to reject signals in adjacent channels?
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0
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0
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January 2, 2026
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E7C10 - Which of the following filters is used in a 2-meter band repeater duplexer?
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0
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0
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January 2, 2026
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E7C08 - Which of the following is most frequently used as a band-pass or notch filter in VHF and UHF transceivers?
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0
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2
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January 2, 2026
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E7C07 - Which describes a Pi-L network?
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0
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0
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January 2, 2026
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E7C06 - What are the characteristics of an elliptical filter?
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0
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0
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January 2, 2026
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E7C05 - Which filter type has ripple in the passband and a sharp cutoff?
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0
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0
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January 2, 2026
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