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SESK: Stuff Everyone Should Know · sesk.info/ham-arq-retransmission

What role does ARQ play in a transmission system?

ARQ requests retransmission after the receiver detects an error.

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  1. A video-only format
  2. Satellite command encryption
  3. Receiver-requested retransmission after errors ✔

Why: The receiving station checks incoming data for errors. When it finds one, ARQ asks the sending station to transmit that information again.

Huh, didn't know that: ARQ stands for Automatic Repeat reQuest.

The dad joke
ARQ said, Come again? It was only correcting an error.
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References

Answer: Receiver-requested retransmission after errors. The receiving station checks incoming data for errors. When it finds one, ARQ asks the sending station to transmit that information again.

  1. NCVEC 2026-2030 Technician Question Pool www.ncvec.org/downloads/2026-2030%20Technician%20Pool%20and%20Syllabus%20Public%20Release%20Feb%2019%202026.pdf
    An error correction method in which the receiving station detects errors and sends a request for retransmission
    Checked 2026-10-09.

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