Practice Test Geeks(CED) Certified Emergency Dispatcher Practice Test
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Radio & Telecommunication Systems Flashcards

7 cards from real CED practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Radio & Telecommunication Systems flashcards as text

  1. A caller reports hearing a distress signal on a marine radio channel. The dispatcher should FIRST:

    Answer: Obtain specific information about the signal's characteristics, location, and frequency, then notify appropriate authorities

    The dispatcher should gather all available details from the caller and then immediately notify the appropriate authority, such as the Coast Guard, to respond.

  2. What does 'radio discipline' mean in a public safety communications context?

    Answer: Adhering to proper radio protocols including brevity, correct terminology, and avoiding unnecessary transmissions

    Radio discipline means following established communication protocols to keep channels clear, transmissions brief, and language standardized for operational efficiency.

  3. Which term describes the area surrounding a transmitting antenna where radio frequency energy can cause harm to unprotected personnel?

    Answer: RF exposure zone

    The RF exposure zone is the area around an antenna where electromagnetic field levels exceed safe exposure limits and personnel must be protected.

  4. A dispatcher is monitoring a channel and hears a unit transmit 'Code 4, no further assistance needed.' This communication indicates:

    Answer: The situation is under control and additional resources are not required

    Code 4 is a standardized radio code used in many U.S. jurisdictions to indicate that a situation is stable and no further assistance is needed.

  5. What is 'simulcast' in the context of public safety radio systems?

    Answer: Simultaneous transmission of the same signal from multiple sites to provide seamless coverage over a wide area

    Simulcast broadcasts identical signals from multiple transmitter sites simultaneously, expanding coverage while allowing units to seamlessly move between areas.

  6. When a dispatcher says 'Stand by' over the radio, it means:

    Answer: The dispatcher has received the message and will respond shortly; the channel should remain clear

    'Stand by' instructs the unit that the message was received and the dispatcher will respond as soon as possible, indicating the channel should be kept available.

  7. In emergency telecommunications, what is the function of an 'Automatic Location Identification' (ALI) system?

    Answer: Provides the dispatcher with the geographic location of a 911 caller's phone

    ALI automatically delivers the geographic coordinates or address associated with a 911 caller's phone to the dispatcher's screen, speeding up response.