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E7H05 - How is positive feedback supplied in a Pierce oscillator?
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0
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0
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January 2, 2026
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E7H04 - How is positive feedback supplied in a Colpitts oscillator?
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0
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0
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January 2, 2026
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E7H03 - What is a phase-locked loop?
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0
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0
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January 2, 2026
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E7H02 - What is a microphonic?
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0
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0
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January 2, 2026
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E7H01 - What are three common oscillator circuits?
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0
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0
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January 2, 2026
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E7G12 - What is an operational amplifier?
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0
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0
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January 2, 2026
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E7G11 - What absolute voltage gain can be expected from the circuit in Figure E7-3 when R1 is 3,300 ohms and RF is 47 kilohms?
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0
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1
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January 2, 2026
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E7G09 - What will be the output voltage of the circuit shown in Figure E7-3 if R1 is 1,000 ohms, RF is 10,000 ohms, and 0.23 volts DC is applied to the input?
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0
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1
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January 2, 2026
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E7G08 - How does the gain of an ideal operational amplifier vary with frequency?
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0
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0
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January 2, 2026
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E7G07 - What voltage gain can be expected from the circuit in Figure E7-3 when R1 is 10 ohms and RF is 470 ohms?
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0
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2
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January 2, 2026
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E7G06 - What is the gain-bandwidth of an operational amplifier?
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0
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0
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January 2, 2026
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E7G05 - How can unwanted ringing and audio instability be prevented in an op-amp audio filter?
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0
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0
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January 2, 2026
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E7G04 - What is meant by the term "op-amp input offset voltage"?
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0
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1
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January 2, 2026
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E7G03 - What is the typical input impedance of an op-amp?
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0
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0
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January 2, 2026
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E7G02 - What is the frequency response of the circuit in E7-3 if a capacitor is added across the feedback resistor?
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0
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1
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January 2, 2026
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E7G01 - What is the typical output impedance of an op-amp?
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0
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0
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January 2, 2026
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E7F14 - Which of the following would allow a digital signal processing filter to create a sharper filter response?
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0
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0
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January 2, 2026
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E7F13 - What is the function of taps in a digital signal processing filter?
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0
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2
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January 2, 2026
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E7F12 - Which of the following is generally true of Finite Impulse Response (FIR) filters?
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0
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0
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January 2, 2026
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E7F11 - What sets the minimum detectable signal level for a direct-sampling software defined receiver in the absence of atmospheric or thermal noise?
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0
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0
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January 2, 2026
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E7F10 - What aspect of receiver analog-to-digital conversion determines the maximum receive bandwidth of a direct-sampling software defined radio (SDR)?
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0
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0
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January 2, 2026
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E7F09 - Why is an anti-aliasing filter required in a decimator?
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0
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0
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January 2, 2026
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E7F08 - What is the function of decimation?
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0
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0
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January 2, 2026
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E7F07 - What function is performed by a Fast Fourier Transform?
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0
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0
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January 2, 2026
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E7F06 - What is the minimum number of bits required to sample a signal with a range of 1 volt at a resolution of 1 millivolt?
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0
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0
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January 2, 2026
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E7F05 - How frequently must an analog signal be sampled to be accurately reproduced?
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0
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0
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January 2, 2026
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E7F04 - Which method generates an SSB signal using digital signal processing?
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0
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0
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January 2, 2026
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E7F03 - What type of digital signal processing filter is used to generate an SSB signal?
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0
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0
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January 2, 2026
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E7F02 - What kind of digital signal processing audio filter is used to remove unwanted noise from a received SSB signal?
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0
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0
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January 2, 2026
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E7F01 - What is meant by "direct sampling" in software defined radios?
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0
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0
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January 2, 2026
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