SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/hamg-g8a08

What is an effect of overmodulation?

Excessive bandwidth.

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  1. Insufficient audio
  2. Excessive bandwidth ✔
  3. Frequency drift

Why: Putting too much audio into the transmitter distorts the signal and spreads it wider than it should be. That is excessive bandwidth.

Huh, didn't know that: Flat-topping is signal distortion caused by excessive drive or speech levels.

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A ham on 146.52 argued that if neighbors pick up your signal on their TV or speakers, that just means you're getting out better.
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References

Answer: Excessive bandwidth. Putting too much audio into the transmitter distorts the signal and spreads it wider than it should be. That is excessive bandwidth.

  1. NCVEC 2023-2027 General Class Pool and Syllabus (6th Errata, Feb 4 2026) ncvec.org/downloads/General%20Class%20Pool%20and%20Syllabus%202023-2027%20Public%20Release%20with%206th%20Errata%20Feb%204%202026.pdf
    Excessive bandwidth
    Checked 2026-10-11.

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