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G8A08 - Which of the following is an effect of overmodulation?
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0
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0
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December 15, 2025
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G8C01 - On what band do amateurs share channels with the unlicensed Wi-Fi service?
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0
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0
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December 15, 2025
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G8B13 - Which of the following is an odd-order intermodulation product of frequencies F1 and F2?
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0
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5
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December 15, 2025
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G8B12 - What process combines two signals in a non-linear circuit to produce unwanted spurious outputs?
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0
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0
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December 15, 2025
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G8B11 - What combination of a mixer’s Local Oscillator (LO) and RF input frequencies is found in the output?
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0
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0
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December 15, 2025
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G8B10 - What is the relationship between transmitted symbol rate and bandwidth?
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0
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0
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December 15, 2025
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G8B08 - Why is it important to know the duty cycle of the mode you are using when transmitting?
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0
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0
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December 15, 2025
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G8B02 - What is the term for interference from a signal at twice the IF frequency from the desired signal?
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0
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0
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December 15, 2025
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G8A10 - What is meant by the term “flat-topping,” when referring to an amplitude-modulated phone signal?
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0
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0
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December 15, 2025
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G8B07 - What is the frequency deviation for a 12.21 MHz reactance modulated oscillator in a 5 kHz deviation, 146.52 MHz FM phone transmitter?
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0
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0
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December 15, 2025
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G8B01 - Which mixer input is varied or tuned to convert signals of different frequencies to an intermediate frequency (IF)?
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0
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0
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December 15, 2025
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G8B05 - Which intermodulation products are closest to the original signal frequencies?
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0
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0
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December 15, 2025
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G8A13 - What is a link budget?
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0
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0
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December 15, 2025
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G8A07 - Which of the following phone emissions uses the narrowest bandwidth?
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0
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0
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December 15, 2025
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G8B09 - Why is it good to match receiver bandwidth to the bandwidth of the operating mode?
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0
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0
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December 15, 2025
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G8B04 - What is the stage in a VHF FM transmitter that generates a harmonic of a lower frequency signal to reach the desired operating frequency?
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0
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0
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December 15, 2025
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G8B03 - What is another term for the mixing of two RF signals?
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0
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0
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December 15, 2025
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G8A12 - What is QPSK modulation?
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0
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0
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December 15, 2025
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G8A11 - What is the modulation envelope of an AM signal?
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0
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0
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December 15, 2025
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G8A06 - Which of the following is characteristic of QPSK31?
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0
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0
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December 15, 2025
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G8A05 - What type of modulation varies the instantaneous power level of the RF signal?
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0
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0
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December 15, 2025
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G8A04 - What emission is produced by a reactance modulator connected to a transmitter RF amplifier stage?
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0
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0
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December 15, 2025
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G8A03 - What is the name of the process that changes the instantaneous frequency of an RF wave to convey information?
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0
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0
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December 15, 2025
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G8A02 - What is the name of the process that changes the phase angle of an RF signal to convey information?
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0
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0
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December 15, 2025
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G8A01 - How is direct binary FSK modulation generated?
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0
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0
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December 15, 2025
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G7C13 - What term specifies a filter’s maximum ability to reject signals outside its passband?
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0
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0
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December 15, 2025
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G7C07 - What term specifies a filter’s attenuation inside its passband?
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0
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0
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December 15, 2025
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G7C01 - What circuit is used to select one of the sidebands from a balanced modulator?
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0
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0
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December 15, 2025
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G7C11 - Which of these functions is performed by software in a software-defined radio (SDR)?
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0
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0
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December 15, 2025
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G7C05 - Which of the following is characteristic of a direct digital synthesizer (DDS)?
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0
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0
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December 15, 2025
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