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AhaBulb: Stuff Everyone Should Know · ahabulb.com/ham-rf-non-ionizing

What type of radiation are radio signals?

Non-ionizing radiation.

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  1. Ionizing radiation
  2. Gamma radiation
  3. Non-ionizing radiation ✔

Why: Radio waves do not have enough energy to cause chemical changes in cells or damage DNA. Ionizing radiation, like X-rays and gamma rays, does.

Huh, didn't know that: FCC exposure limits vary with frequency because the body absorbs more RF at some frequencies.

The dad joke
Why did the radio wave stay calm? It was non-ionizing, it does not get charged up.
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References

Answer: Non-ionizing radiation. Radio waves do not have enough energy to cause chemical changes in cells or damage DNA. Ionizing radiation, like X-rays and gamma rays, does.

  1. FDA: Microwave Ovens www.fda.gov/radiation-emitting-products/resources-you-radiation-emitting-products/microwave-ovens
    Visible light, microwaves, and radio frequency (RF) radiation are forms of non-ionizing radiation.
    Checked 2026-10-09.

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