1. What do many amateurs use to help form good Morse code characters?
    A. An electronic keyer.
    B. A key-operated on/off switch.
    C. A notch filter.
    D. A DTMF keypad.
  2. Where would you connect a microphone for voice operation?
    A. To a transceiver.
    B. To a power supply.
    C. To an antenna switch.
    D. To an antenna.
  3. What would you connect to a transceiver for voice operation?
    A. A receiver audio filter.
    B. A terminal-voice controller.
    C. A microphone.
    D. A splatter filter.
  4. Why may a dummy antenna get warm in use?
    A. Because it absorbs static electricity.
    B. Because it stores radio waves.
    C. Because it changes RF energy into heat.
    D. Because it stores electric current.
  5. In a CW transmitter, the output of the ______is connected to the buffer/driver.
    A. power amplifier
    B. telegraph key
    C. master oscillator
    D. power supply
  6. In a typical CW transmitter, the ______is the primary source of direct current.
    A. driver/buffer
    B. power supply
    C. power amplifier
    D. master oscillator
  7. In a CW transmitter, the ______is between the master oscillator and the power amplifier.
    A. audio amplifier
    B. driver/buffer
    C. power supply
    D. telegraph key
  8. In a CW transmitter, the ______controls when the RF energy is applied to the antenna.
    A. master oscillator
    B. driver/buffer
    C. telegraph key
    D. power amplifier
  9. In a CW transmitter, the ______is between the driver/buffer and the antenna.
    A. power supply
    B. power amplifier
    C. telegraph key
    D. master oscillator
  10. In a CW transmitter, the output of the ______is transferred to the antenna. A. power amplifier
    B. driver/buffer
    C. power supply
    D. master oscillator
  11. An RF oscillator should be electrically and mechanically stable. This is to ensure the oscillator does not:
    A. become over modulated
    B. generate key clicks
    C. drift in frequency
    D. cause undue distortion
  12. The input power to the final stage of your transmitter is 200 watts and the output is 125 watts. What happened to the remaining power?
    A. It has been dissipated as heat loss.
    B. It has been used to provide greater efficiency.
    C. It has been used to provide negative feedback.
    D. It has been used to provide positive feedback.
  13. The difference between DC input power and RF output power of a transmitter RF amplifier:
    A. is lost in the feed line
    B. appears as heat dissipation
    C. is due to oscillating
    D. radiates from the antenna
  14. A mismatched feed line or antenna may present an incorrect load to the transmitter. The result may be:
    A. loss of modulation in the transmitted signal
    B. the driver stage may not deliver power to the final
    C. excessive heat produced in the final transmitter stage
    D. the output tank circuit breaks down
  15. One result of a slight mismatch between the power amplifier of a transmitter and the antenna would be:
    A. smaller DC current drain
    B. lower modulation percentage
    C. reduced antenna radiation
    D. radiated key clicks
  16. What circuit has a variable-frequency oscillator connected to a driver and a power amplifier?
    A. A crystal-controlled transmitter.
    B. A VFO-controlled transmitter.
    C. A single-sideband transmitter.
    D. A packet-radio transmitter.
  17. What type of modulation system changes the amplitude of an RF wave for the propose of conveying information?
    A. Phase modulation.
    B. Amplitude modulation.
    C. Amplitude-rectification modulation.
    D. Frequency modulation.
  18. In what emission type does the instantaneous amplitude (envelope) of the RF signal vary in accordance with the modulation mode?
    A. Frequency modulation.
    B. Pulse modulation.
    C. Amplitude modulation.
    D. Frequency shift keying.
  19. Morse code is usually transmitted by radio as:
    A. a series of key-clicks
    B. a continuous carrier
    C. an interrupted carrier
    D. a voice-modulated carrier
  20. What is the circuit called which causes a transmitter to automatically transmit when an operator speaks into its microphone?
    A. VXO
    B. VCO
    C. VFO
    D. VOX
  21. What is the reason for using a properly adjusted speech processor with a single- sideband phone transmitter?
    A. It improves signal intelligibility at the receiver.
    B. It reduces average transmitter power requirements.
    C. It reduces unwanted noise pickup from the microphone.
    D. It improves voice frequency fidelity.
  22. If a single-sideband phone transmitter is 100% modulated, what will a speech processor do to the transmitter’s power?
    A. It will add nothing to the output PEP.
    B. It will increase the output PEP.
    C. It will decrease the peak power output.
    D. It will decrease the average power output.
  23. What may happen if an SSB transmitter is operated with the microphone gain set too high?
    A. It may cause interference to other stations operating on a higher frequency band.
    B. It may cause atmospheric interference in the air around the antenna.
    C. It may cause splatter interference to other stations operating near the frequency.
    D. It may cause digital interference to computer equipment.
  24. What may happen if an SSB transmitter is operated with too much speech processing?
    A. It may cause digital interference to computer equipment.
    B. It may cause atmospheric interference in the air around the antenna.
    C. It may cause interference to other stations operating on a higher frequency band.
    D. It may cause splatter interference to other stations operating near the frequency.
  25. What is the term for the average power supplied to an antenna transmission line during one RF cycle, at the crest of the modulation envelope?
    A. Peak output power.
    B. Peak envelope power.
    C. Average radio-frequency power.
    D. Peak transmitter power.
  26. What is the actual bandwidth of a single-sideband amateur signal?
    A. 1 kHz.
    B. 2 kHz.
    C. Between 3 and 6 kHz.
    D. Between 2 and 3 kHz.
  27. In a typical single-sideband phone transmitter, what circuit processes signals from the balanced modulator and sends signals to the mixer?
    A. IF amplifier.
    B. Filter.
    C. RF amplifier.
    D. Carrier oscillator.
  28. What is one advantage of carrier suppression in a double-sideband phone transmission?
    A. More power can be put into the sidebands.
    B. Only half the bandwidth is required for the same information content.
    C. Greater modulation percentage is obtainable with lower distortion.
    D. Simpler equipment can be used to receive a double-sideband suppressed- carrier signal.
  29. What happens to the signal of an overmodulated single-sideband or double- sideband phone transmitter?
    A. It becomes louder with no other effects.
    B. It occupies less bandwidth with poor high-frequency response.
    C. It has higher fidelity and improved signal-to-noise ratio.
    D. It becomes distorted and occupies more bandwidth.
  30. How should the microphone gain control be adjusted on a single-sideband phone transmitter?
    A. For a slight movement of the ALC meter on modulation peaks.
    B. For full deflection of the ALC meter on modulation peaks.
    C. For 100% frequency deviation on modulation peaks.
    D. For a dip in plate current.
  31. The purpose of the balanced modulator in a SSB transmitter is to:
    A. make sure the carrier and both sidebands are 180 degrees out of phase.
    B. ensure the percentage of modulation is kept constant.
    C. make sure the carrier and both sidebands are in phase.
    D. suppress the carrier and pass on the two sidebands.
  32. In a SSB transmission, the carrier is:
    A. transmitted with one sideband
    B. reinserted at the receiver
    C. inserted at the transmitter
    D. of no use at the receiver
  33. The automatic level control (ALC) in a SSB transmitter:
    A. eliminates the transmitter distortion
    B. controls the peak audio input so the final amplifier is not overdriven
    C. increases the occupied bandwidth
    D. reduces the system noise
  34. In a single-sideband transmitter, the output of the ______is connected to the balanced modulator.
    A. radio frequency oscillator
    B. variable frequency oscillator
    C. linear amplifier
    D. mixer
  35. In a single-sideband transmitter, the output of the ______is connected to the filter.
    A. microphone
    B. balanced modulator
    C. mixer
    D. radio frequency oscillator
  36. In a single-sideband transmitter, the ______is in between the balanced modulator and the mixer.
    A. radio frequency oscillator
    B. speech amplifier
    C. filter
    D. microphone
  37. In a single-sideband transmitter, the ______is connected to the speech amplifier.
    A. radio frequency oscillator
    B. filter
    C. mixer
    D. microphone
  38. In a single-sideband transmitter, the output of the ______is connected to the balanced modulator.
    A. filter
    B. variable frequency oscillator
    C. speech amplifier
    D. linear amplifier
  39. In a single-sideband transmitter, the output of the variable frequency oscillator is connected to the ______.
    A. antenna
    B. balanced modulator
    C. linear amplifier
    D. mixer
  40. In a single-sideband transmitter, the output of the ______is connected to the mixer.
    A. variable frequency oscillator
    B. radio frequency oscillator
    C. linear amplifier
    D. antenna
  41. In a single-sideband transmitter, the ______is in between the mixer and the antenna.
    A. variable frequency oscillator
    B. linear amplifier
    C. balanced modulator
    D. radio frequency oscillator
  42. In a single-sideband transmitter, the output of the linear amplifier is connected to the ______.
    A. antenna
    B. filter
    C. variable frequency oscillator
    D. speech amplifier
  43. What may happen if an FM transmitter is operated with the microphone gain or deviation control set too high?
    A. It may cause digital interference to computer equipment.
    B. It may cause atmospheric interference in the air around the antenna.
    C. It may cause interference to other stations operating on a higher frequency band.
    D. It may cause interference to other stations operating near its frequency.
  44. What may your hand-held or mobile transmitter do if you shout into the microphone?
    A. It may cause interference to other stations operating near its frequency.
    B. It may cause digital interference to computer equipment.
    C. It may cause atmospheric interference in the air around the antenna.
    D. It may cause interference to other stations operating on a higher frequency band.
  45. What can you do if you are told your FM hand-held or mobile transceiver is over deviating?
    A. Talk louder into the microphone.
    B. Let the transceiver cool off.
    C. Change to a higher power level.
    D. Talk further away from the microphone.
  46. What kind of emission would your FM transmitter produce if its microphone failed to work?
    A. A frequency-modulated carrier.
    B. An amplitude-modulated carrier.
    C. An unmodulated carrier.
    D. A phase-modulated carrier.
  47. Why is FM voice best for local VHF/UHF radio communications? A. It has high-fidelity audio thst can be understood even when the signal is somewhat weak.
    B. The carrier is not detectable.
    C. It is more resistant to distortion caused by reflected signals.
    D. Its RF carrier stays on frequency better than the AM modes.
  48. What is the usual bandwidth of a frequency-modulated amateur signal?
    A. Between 10 and 20 kHz.
    B. Less than 5 kHz.
    C. Between 5 and 10 kHz.
    D. Greater than 20 kHz.
  49. What is the result of overdeviation in an FM transmitter?
    A. Out-of-channel emissions.
    B. Increased transmitter power.
    C. Increased transmitter range.
    D. Poor carrier suppression.
  50. What emission is produced by a reactance modulator connected to an RF power amplifier?
    A. Multiplex modulation.
    B. Amplitude modulation.
    C. Pulse modulation.
    D. Phase modulation.
  51. Why isn't Frequency Modulation (FM) phone used below 29.5 MHz?
    A. The transmitter efficiency for this mode is low.
    B. Harmonics could not be attenuated to practical levels.
    C. The frequency stability would not be adequate.
    D. The bandwidth would exceed limits in the Regulations.
  52. You are transmitting FM on the 2 meter band. Several stations advise you that your transmission is distorted. A quick check with a frequency counter tells you that the transmitter is on the proper frequency. Which of the following is the most probable cause of the distortion?
    A. The frequency deviation of your transmitter is set too high.
    B. The power supply output voltage is too low.
    C. The repeater is reversing your sidebands.
    D. The frequency counter is giving an incorrect reading and you are indeed off frequency.
  53. FM receivers perform in an unusual manner when two or more stations are present. The loudest signal, even though it is only two to three times as loud as other signals, will be the only transmission demodulated. This is called:
    A. attach effect
    B. interference effect
    C. surrender effect
    D. capture effect
  54. In a frequency modulation transmitter, the input to the speech amplifier is connected to the:
    A. microphone
    B. modulator
    C. power amplifier
    D. frequency multiplier
  55. In a frequency modulation transmitter, the microphone is connected to the:
    A. modulator
    B. power amplifier
    C. speech amplifier
    D. oscillator
  56. In a frequency modulation transmitter, the ______is in between the speech amplifier and the oscillator.
    A. modulator
    B. power amplifier
    C. microphone
    D. frequency multiplier
  57. In a frequency modulation transmitter, the ______is located between the modulator and the frequency multiplier.
    A. speech amplifier
    B. oscillator
    C. power amplifier
    D. microphone
  58. In a frequency modulation transmitter, the ______is located between the oscillator and the power amplifier.
    A. frequency multiplier
    B. microphone
    C. speech amplifier
    D. modulator
  59. In a frequency modulation transmitter, the ______is located between the frequency multiplier and the antenna.
    A. modulator
    B. power amplifier
    C. speech amplifier
    D. oscillator
  60. In a frequency modulation transmitter, the power amplifier output is connected to the:
    A. frequency multiplier
    B. microphone
    C. antenna
    D. modulator
  61. What does connected mean in a packet-radio link?
    A. A telephone line is working between two stations.
    B. A message has reached an amateur station for local delivery.
    C. A transmitting and receiving station are using a digipeater, so no other contacts can take place until they are finished.
    D. A transmitting station is sending data to only one receiving station; it replies that the data is being received correctly.
  62. What does monitoring mean on a packet-radio frequency?
    A. A member of the Amateur Auxiliary is copying all messages.
    B. A receiving station is displaying messages that may not be sent to it, and is not replying to any message.
    C. A receiving station is displaying all messages sent to it, and replying that the messages are being received correctly.
    D. Industry Canada is monitoring all messages.
  63. What is a digipeater?
    A. A repeater built using only digital parts.
    B. A repeater that changes audio signals to digital data.
    C. A packet-radio station that retransmits only data that is marked to be retransmitted.
    D. A packet-radio station that retransmits any data that it receives.
  64. What does network mean in packet radio?
    A. A way of connecting packet-radio stations so data can be sent over long distances.
    B. A way of connecting terminal-node controllers by telephone so data can be sent over long distances.
    C. The connections on terminal-node controllers.
    D. The programming in a terminal-node controller that rejects other callers if a station is already connected.
  65. In packet-radio operation, what equipment connects to the terminal-node controller?
    A. A transceiver and a modem.
    B. A DTMF keypad, a monitor and a transceiver.
    C. A DTMF microphone, a monitor and a transceiver.
    D. A transceiver and a terminal or computer system.
  66. How would you modulate a 2-meter FM transceiver to produce packet-radio emissions?
    A. Connect a terminal-node controller to the transceiver's microphone input.
    B. Connect a terminal-node controller to interrupt the transceiver’s carrier wave.
    C. Connect a keyboard to the transceiver’s microphone input.
    D. Connect a DTMF keypad to the transceiver's microphone input.
  67. When selecting a RTTY transmitting frequency, what minimum frequency separation from a contact in progress should you allow (center-to-center) to minimize interference?
    A. Approximately 6 kHz.
    B. Approximately 3 kHz.
    C. 250 to 500 Hz.
    D. 60 Hz.
  68. Digital transmissions use signals called ______to transmit the states 1 and 0.
    A. packet and AMTOR
    B. baudot and ASCII
    C. mark and space
    D. dot and dash
  69. Which of the following terms does NOT apply to packet?
    A. ASCII
    B. Baudot.
    C. Terminal-Node Controller (TNC).
    D. AX.25.
  70. When using AMTOR transmissions, there are two modes that may be utilized, Mode A uses Automatic Repeat Request (ARQ) protocol and is normally used:
    A. at all times. Mode B is for test purposes only
    B. only when communications have been completed
    C. for communications after contact has been established
    D. when making a general call
  71. What is the most common data rate used for VHF packet communications?
    A. 300 baud
    B. 9600 baud
    C. 2400 baud
    D. 1200 baud
  72. To increase the level of a very weak signal from a microphone you would use:
    A. an RF oscillator
    B. an RF amplifier
    C. an audio amplifier
    D. an audio oscillator
  73. The range of frequencies to be amplified by a speech amplifier is typically:
    A. 3 to 300 Hz
    B. 300 to 1000 Hz
    C. 40 to 40,000 Hz
    D. 300 to 3400 Hz