Practice Test Geeks(CFC) Certified Flight Communicator Practice Test
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Communication Equipment Operation Flashcards

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

Read the first 7 Communication Equipment Operation flashcards as text

  1. What HF propagation mode is most commonly used for long-distance oceanic aviation communications?

    Answer: Sky wave (ionospheric) propagation

    HF sky wave propagation reflects off the ionosphere, enabling transmissions over thousands of miles beyond line-of-sight range.

  2. A pilot reports a radio as 'unmodulated' during a transmission. What does this indicate?

    Answer: The carrier wave is present but no voice audio is being superimposed

    An unmodulated signal means the transmitter is keyed and a carrier is present, but the microphone or audio chain is not adding voice to the signal.

  3. What is the purpose of the 'clarifier' or 'fine-tune' control on an HF single-sideband radio?

    Answer: To fine-tune receiver frequency for natural voice quality on SSB

    SSB reception requires precise frequency alignment; the clarifier allows small frequency offsets to restore natural-sounding voice.

  4. Which of the following best describes the function of the ELT (Emergency Locator Transmitter)?

    Answer: Automatically transmits a distress signal on 406 MHz and 121.5 MHz upon crash impact

    The ELT activates automatically on impact and transmits on 406 MHz (satellite-detected) and 121.5 MHz (homing) to assist SAR operations.

  5. When a pilot acknowledges an instruction with 'wilco,' what does this term mean?

    Answer: I have received your message and will comply

    Wilco (will comply) indicates the message was received and understood and the pilot intends to follow the instruction.

  6. Which frequency band is most susceptible to static interference from thunderstorms during radio communications?

    Answer: HF (2–30 MHz)

    HF radio is highly susceptible to atmospheric noise, including lightning static from distant thunderstorms, due to sky wave propagation characteristics.

  7. What is the correct procedure when an aircraft experiences a complete radio failure in IMC while operating under IFR?

    Answer: Squawk 7600 and follow 14 CFR 91.185 lost communications procedures

    Squawking 7600 alerts ATC to the radio failure, and 14 CFR 91.185 prescribes the expected route, altitude, and approach sequence to follow.