1. The three main parameters against which the quality of a receiver is measured are:
    A. selectivity, stability and frequency range
    B. sensitivity, stability and cross-modulation
    C. sensitivity, selectivity and image rejection
    D. sensitivity, selectivity and stability

  2. The figure in a receiver’s specification which indicates its sensitivity is the:
    A. signal plus noise to noise ratio
    B. audio output in watts
    C. bandwidth of the IF in kilohertz
    D. number of RF amplifiers

  3. If two receivers of different sensitivity are compared, the less sensitive receiver will produce:
    A. a steady oscillator drift
    B. more than one signal
    C. less signal or more noise
    D. more signal or less noise

  4. Which of the following modes of transmission is usually detected with a product detector?
    A. Double sideband full carrier.
    B. Frequency modulation.
    C. Pulse modulation.
    D. Single sideband suppressed carrier.

  5. A receiver designed for SSB reception must have a BFO (beat frequency oscillator) because:
    A. it beats with the received carrier to produce the other sideband
    B. it reduces the passband of the IF stages
    C. the suppressed carrier must be replaced for detection
    D. it phases out the unwanted sideband signal

  6. What kind of filter would you use to attenuate an interfering carrier signal while receiving an SSB transmission?
    A. A notch filter.
    B. A band pass filter.
    C. An all pass filter.
    D. A pi-network filter.

  7. Which list of emission types is in order from the narrowest to the widest bandwidth?
    A. CW, SSB voice, RTTY, FM voice.
    B. CW, FM voice, RTTY, SSB voice.
    C. CW, RTTY, SSB voice, FM voice.
    D. RTTY, CW, SSB voice, FM voice.

  8. A receiver receives an incoming signal of 3.54 MHz, and the local oscillator produces a signal of 3.995 MHz. To which frequency should the IF be tuned?
    A. 7.435 MHz.
    B. 3.995 MHz.
    C. 455 kHz.
    D. 3.54 MHz.

  9. A communications receiver has four filters installed in it, one at 250 Hz, one at 500 Hz, one at 2.4 kHz, and one at 6 kHz. If you were listening to single sideband, which filter would you utilize?
    A. 250 Hz.
    B. 2.4 kHz.
    C. 6 kHz.
    D. 500 Hz.

  10. A communications receiver has four filters installed in it, one at 250 Hz, one at 500 Hz, one at 2.4 kHz, and one at 6 kHz. You are copying a CW transmission and there is a great deal of interference. Which one of the filters would you choose?
    A. 500 Hz.
    B. 2.4 kHz.
    C. 6 kHz.
    D. 250 Hz.

  11. Selectivity can be placed in the audio stages of a receiver by utilization of RC active or passive audio filters. If you were to copy CW, which of the following bandpasses would you choose?
    A. 2100-2300 Hz.
    B. 300-2700 Hz.
    C. 750 to 850 Hz.
    D. 100 to 1100 Hz.

  12. In a single sideband and CW receiver, the antenna is connected to the__________.
    A. product detector
    B. high frequency oscillator
    C. intermediate frequency amplifier
    D. radio frequency amplifier

  13. In a single sideband and CW receiver, the output of the ___________ is connected to the mixer.
    A. filter
    B. intermediate frequency amplifier
    C. audio frequency
    D. radio frequency amplifier

  14. In a single sideband and CW receiver, the _________ is connected to the radio frequency amplifier and the high frequency oscillator.
    A. beat frequency oscillator
    B. product detector
    C. mixer
    D. filter

  15. In a single sideband and CW receiver, the output of the __________ is connected to the mixer.
    A. intermediate frequency amplifier
    B. high frequency oscillator
    C. beat frequency oscillator
    D. a product detector

  16. In a single sideband and CW receiver, the __________ is in between the mixer and intermediate frequency amplifier.
    A. filter
    B. radio frequency amplifier
    C. beat frequency oscillator
    D. product detector

  17. In a single sideband and CW receiver, the ___________ is in between the filter and the product detector.
    A. intermediate frequency amplifier
    B. audio frequency amplifier
    C. beat frequency oscillator
    D. radio frequency amplifier

  18. In a single sideband and CW receiver, the ___________ output is connected to the audio frequency amplifier.
    A. product detector
    B. high frequency oscillator
    C. beat frequency oscillator
    D. intermediate frequency amplifier

  19. In a single sideband and CW receiver, the output of the __________ is connected to the product detector.
    A. mixer
    B. beat frequency oscillator
    C. radio frequency amplifier
    D. audio frequency amplifier

  20. In a single sideband and CW receiver, the ___________ is connected to the output of the product detector.
    A. intermediate frequency amplifier
    B. audio frequency amplifier
    C. high frequency oscillator
    D. radio frequency amplifier

  21. In a single sideband and CW receiver, the ___________ is connected to the output of the audio frequency amplifier.
    A. speaker and/or headphones
    B. mixer
    C. radio frequency amplifier
    D. beat frequency oscillator

  22. In a frequency modulation receiver, the ___________ is connected to the input of the radio frequency amplifier.
    A. mixer
    B. frequency discriminator
    C. antenna
    D. limiter

  23. In a frequency modulation receiver, the __________ is in between the antenna and the mixer.
    A. audio frequency amplifier
    B. high frequency oscillator
    C. intermediate frequency amplifier
    D. radio frequency amplifier

  24. In a frequency modulation receiver, the output of the high frequency oscillator is fed to the:
    A. radio frequency amplifier
    B. limiter
    C. antenna
    D. mixer

  25. In a frequency modulation receiver, the output of the __________ is connected to the mixer.
    A. frequency discriminator
    B. intermediate frequency amplifier
    C. speaker and/or headphones
    D. high frequency oscillator

  26. In a frequency modulation receiver, the _________ is in between the mixer and the intermediate frequency amplifier.
    A. filter
    B. limiter
    C. frequency discriminator
    D. radio frequency amplifier

  27. In a frequency modulation receiver, the __________ is located between the filter and limiter.
    A. high frequency oscillator
    B. intermediate frequency amplifier
    C. mixer
    D. radio frequency amplifier

  28. In a frequency modulation receiver, the _________ is in between the intermediate frequency amplifier and the frequency discriminator.
    A. filter
    B. high frequency oscillator
    C. limiter
    D. radio frequency amplifier

  29. In a frequency modulation receiver, the __________ is located between the limiter and the audio frequency amplifier.
    A. intermediate frequency amplifier
    B. speaker and/or headphones
    C. high frequency oscillator
    D. frequency discriminator

  30. In a frequency modulation receiver, the ____________ is located between the speaker and/or headphones and the frequency discriminator.
    A. limiter
    B. intermediate frequency amplifier
    C. radio frequency amplifier
    D. audio frequency amplifier

  31. In a frequency modulation receiver, the __________ connects to the audio frequency amplifier.
    A. intermediate frequency amplifier
    B. frequency discriminator
    C. speaker and/or headphones
    D. limiter

  32. To increase the level of very weak radio signals from an antenna, you would use:
    A. an RF oscillator
    B. an audio oscillator
    C. an RF amplifier
    D. an audio amplifier