SBE Radio Operators Practice Exam

These questions are part of the practice quiz. Start practicing

• Is every radio station in the United States required to have an EAS encoder/decoder?
• Which of the following best describes the purpose of a transmitter in a radio system?
• What is the name of the signal that contains the stereo audio and the 19kHz stereo pilot tone?
• What is the primary function of a transmitter?
• What is the name given to a remote control and monitoring system that automatically monitors a transmitter's operating functions and parameters and will call a designated person in case of a problem?
• During ducking, what happens to the audio level of the source being reduced?
• What is the significance of bandwidth in radio communication?
• In an HD Radio System, what is the role of the Exporter?
• What does "FDM" stand for in radio communication?
• What is the significance of the station's frequency?
• What must a caller be notified about before being recorded for on-air playback?
• What is one of the main components of an RF amplifier?
• Which unit is used to indicate a value of power?
• What is the generic name of the device that is used with a special, digital phone line to transmit high-quality stereo audio?
• What can cigarette smoke do to electronic equipment?
• How important is it for the telephone hybrid to work correctly during on-air calls?
• What is the purpose of an antenna in a radio system?
• What is the industry term for an input channel volume control on an audio mixing device?
• Daytime AM radio stations are permitted to broadcast from what times?
• What is the function of a limiter in audio processing?
• What is the typical use of a spectrum analyzer in radio operations?
• What is the primary responsibility of a radio station's chief operator?
• Why is it important to maintain a program log?
• One kilohertz is equal to:
• What factor influences the selection of an antenna for a specific frequency?
• What is the main function of an RF amplifier?
• Who directly oversees the program content of a radio station?
• Which of the following describes the function of an oscillator in a radio transmitter?
• What is the primary purpose of a cue channel in an audio mixing device?
• What would an operator typically do if they notice frequency drift during a transmission?
• What happens to the Standing Wave Ratio (SWR) when ice accumulates on the antennas?
• What does the term "gain" refer to in audio mixing?
• How can unwanted radio interference be reduced in communication systems?
• What is the purpose of a compressor in audio broadcasting?
• What is typically done when a malfunctioning meter is identified at a radio station?
• Does audio compression affect the dynamic range of audio?
• What is the difference between analog and digital signals?
• What happens to the signal if the transmitter is misaligned?
• What are the numbers on a meter called?
• What transmitter reading may increase when ice forms on the antenna?
• What are sources connected to an audio mixing device so they can be broadcast or recorded?
• What is the purpose of an audio console in broadcasting?
• What does the term "dynamic range" refer to in audio signals?
• What is the primary function of an ISDN codec in radio broadcasting?
• What are the required elements of a station identification?
• What is a common use for the 2.4 GHz frequency band in radio technology?
• In a program automation system, what is the name of the mode where an announcer starts program segments and talks between them?
• Which microphone type is often preferred for studio recording due to its sensitivity and audio fidelity?
• What is the primary function of a transmitter in a two-way radio system?
• What does SBE stand for in the context of radio operations?
• Which of the following is a definition of audio distortion?
• Why is it important to maintain proper signal polarization?
• What device is used by a radio station to select and control the level of audio sources to be put on the air?
• What does "Doppler shift" refer to in the context of frequency and velocity?
• What is the name of the switch on an audio device input channel used to send that input channel's audio to a specific output?
• What is a critical outcome of not regularly calibrating a transmitter?
• What does "EMI" stand for in the context of radio operations?
• Which of the following best describes the function of a transmitter?
• What is the typical modulation depth for AM broadcasting?
• What is the function of a remote control and monitoring unit in a radio station?
• What is the primary purpose of a receiver in a radio system?
• What kind of audio mix is provided back to a telephone caller?
• In radio terms, what does the term "SWR" stand for?
• What does the term "latency" refer to in radio transmission?
• What role does a broadcast engineer play in radio operations?
• What is the range of the AM frequency band?
• What is the effect of improper signal polarization on communication?
• Does an FCC inspector need to make an appointment with a station to conduct an inspection?
• Why is frequency coordination important in radio communications?
• What guides the station operator in knowing when to air specific programs?
• What is the general role of a radio station’s chief engineer?
• What is the frequency range of the FM reserved non-commercial band?
• Why are daytime AM stations not permitted to operate at night?
• Which device is used to measure the power of a radio signal?
• What does the acronym "VHF" stand for?
• In percent, what are the minimum and maximum permissible power limits for an FM station without a sub carrier?
• What is the purpose of a low-pass filter in a broadcast system?
• Which type of modulation varies the strength of the transmitted signal?
• Which of the following devices would produce an RF signal at its output?
• Which type of microphone would be a better choice for use with a loud speaking announcer who wants to speak very close to the microphone?
• Which of the following actions is most likely to cause interference in radio broadcasting?
• What component is critical for resolving technical issues before they affect broadcasting?
• How many classes of AM stations are there?
• What is the purpose of the limit frequency filter in a radio system?
• What is the main purpose of the required tests (RWT and RMT) in radio operations?
• Which federal agency limits the number of radio stations in the United States?
• What is considered to be the audio frequency range of human hearing?
• Why is grounding important in a radio transmission system?
• What does a mix-minus audio feed help prevent during calls?
• What must be true for a radio station's required weekly test to be considered valid?
• What do the terms PSSA and PSRA mean?
• What is the importance of a transmission line in a radio system?
• Which unit is used to read and control a radio station's transmitter and other technical operating parameters?
• What may result when an audio level exceeds the maximum reading of a VU meter?
• What should be done when a meter reading is observed to be outside the permitted tolerance and it cannot be readily corrected?
• How soon must a station retransmit a required monthly test (RMT)?
• What is a broadcast repeater?
• A microphone that can pick up a broad acoustic range from high to low is said to have a good ________.
• In radio terminology, what does RF stand for?
• What does the term "bandwidth" refer to in radio communications?
• What method is used when a transmitter's output power is read directly from a wattmeter?
• Which process is vital for maintaining audio levels before broadcasting live?
• What is a common name for a computer-based system that is capable of recording, playing, and editing digital audio?
• What type of groups or people typically hold station licenses for the reserved non-commercial FM frequencies?
• What is a common use of multiplexing in radio technology?
• In an HD Radio system, the Importer enables multiple broadcasts within a single FM channel. What does this allow a broadcaster to do?
• Which device allows for the manipulation of audio frequencies to enhance the sound?
• What is the main function of an antenna in radio communication?
• What is an RF generator used for?
• What does "EIRP" stand for and why is it important?
• What is the significance of using a test tone in audio broadcasting?
• What can cause multipath interference in radio communications?
• Is it true that an EAS can be held until a convenient point in programming?
• What does the term 'bandwidth' refer to in radio transmissions?
• Which of the following is typically a duty of the program director?
• What is the unit of measurement used to indicate the level of sound?
• What is the formula to calculate the wavelength of a radio wave?
• Which is NOT a role of the station owner?
• If the studio-to-transmitter (STL) signal connection is lost, what may happen?
• What role does modulation play in radio broadcasting?
• What is the purpose of using a directional antenna by either an AM or FM station?
• Define "terrestrial broadcasting."
• What does "AM" stand for in broadcasting?
• How often should a station without an automatic tower light monitoring device inspect its tower lights for proper operation?
• What kind of microphone would use phantom power?
• Define the term "harmonics" in radio transmission.
• A radio station might use a _____ antenna to minimize interference to another station.
• A microphone with a single opening at its top end and openings below that opening is most likely what type of microphone?
• What is the name of the microwave radio system that connects the studio audio output to the transmitter's audio input when the studio and transmitter sites are not in the same location?
• What role does the FCC play in radio operations?
• What is the maximum permissible power for a local channel class C AM radio station?
• Which of the following responsibilities is NOT associated with a radio station's chief engineer?
• What type of modulation is primarily used in digital audio broadcasting?
• Which describes the proper procedure for turning on a tube-type transmitter?
• Define "modulation" in the context of radio communications.
• Where must the station license be kept?
• What are the primary classes of FM stations in the United States?
• What are the meters used to measure audio levels on an audio mixing device called?
• In broadcast audio, what does "S/N ratio" refer to?
• What is one key benefit of using digital signals over analog signals?
• What does the abbreviation ERP stand for in broadcasting?
• What could a significant dip in audio frequency response indicate during broadcasting?
• What are the two most popular types of STL systems?
• What role does frequency play in radio communications?
• What is one important safety precaution when operating high-power transmission equipment?
• How often must a broadcast station be identified over the air?
• What are the maximum modulation limits for an AM station?
• Which task is primarily associated with a digital audio workstation?
• What does "DAB" stand for in radio broadcasting?
• What is the purpose of using a directional antenna?
• What is the maximum permissible modulation for an FM station?
• To whom should problems of a technical nature at a station normally be reported?
• What is the function of a mixer in a radio transmitter?
• When using a two-way radio system, what is the role of the receiver?
• Which part of the Code of Federal Regulations covers the rules for operating a radio station?
• What is typically monitored through the cue channel of a mixer?
• What is the primary purpose of a dipole antenna?
• Why is peak level monitoring important in audio production?
• What is meant by "antenna gain"?
• FM radio stations are permitted to broadcast how many hours each day?
• How does the Doppler effect influence radio signal transmission?
• What is the typical frequency range for shortwave radio?
• Which modulation technique is commonly used in AM broadcasting?
• What is another name for a transmitter's RF output?
• What is the typical frequency range for FM broadcasting?
• What does the term "bandwidth" refer to in a radio context?
• What is the major purpose of a community license for non-commercial FM radio stations?
• What kind of antenna is typically used for UHF band transmissions?
• What is a "coverage map" in radio broadcasting?
• When a tower light outage is observed, how soon must the FAA be notified of the outage?
• To whom is a station operator primarily accountable?
• What is used to measure AM directional antenna operating parameters?
• If a station is suspected of being off the air, what is the proper course of action to verify the off-air condition?
• What is the allowable tolerance for an AM directional antenna system's current ratio readings?
• When dealing with RF output, what is crucial for maintaining compliance?
• What is the frequency range of the FM non-reserved commercial band?
• A required weekly test (RWT) must be sent in the same week as which other test?
• In the broadcasting context, what does "STL" stand for?
• What is a phase-locked loop (PLL)?
• What does the term "co-location" mean in broadcasting?
• In audio production, what does a higher decibel level indicate?
• What type of audio processing removes unwanted noise from a recording?
• What is the purpose of an Automatic Transmitter System (ATS)?
• In an audio mixing console, what is the function of the channel assign switch?
• Who is responsible for maintaining the transmitter in a radio station?
• What does the term ducking mean in audio processing?
• What is a recommended practice to avoid frequency drift in radio equipment?
• What is the instantaneous maximum audio level being processed at a given time called?
• What is the name of the center-most flashing light on a tower?
• Why is an oscilloscope used in radio testing?