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Radio Frequency (RF) Definition


The Radio Frequency (RF) bandof the electromagnetic spectrum contains frequencies from 3 kHz to 300 GHz.

The Microwave (MW) band is a portion of the RF band. MW ranges from 1 GHz to 30 GHz.

3 kHz 1 GHz – 30 GHz300 GHz

  • RF in black
  • MW in orange

RF and MW waves are not radioactive, which is a common misconception.

These frequencies are non-ioninzing. They have lower energy thatn gamma and X-rays.

This does not mean they do not have a biological effect. It’s just that that effect is different than the power of ionizing frequencies.

RF energy can heat tissue, so it has a thermal biological effect.

Supposedly RF cannot cause harm outside of its thermal effect. This is what government agencies and some scientific journals proclaim.

But you will view the “Harmful” summaries on EMF Channel to see that this is probably false. View EMF Channel articles tagged “Harmful”: Studies, Articles, Books about Harmful EMFs.)

We have ample scientific evidence that RF can damage brain tissue.

We also have evidence that the studies dismissing cell phones as harmful are horribly flawed. See the EMF Channel Article: Cell Phone Use Prevents Cancer. Ha Ha Ha. (article review).

RF is used for:

  • radio broadcasting
  • television broadcasting
  • mobile phones
  • pagers
  • cordless phones
  • first responder radio
  • amateur radio
  • satellite communications
  • microwave ovens
  • diathermy (heat to heal)
  • MRI (magnetic resonance imaging)
EMF Spectrum
The Radio Frequency range within the electromagnetic spectrum.


NASA EMF spectrum
NASA EMF spectrum
Return to the EMF Glossary page.

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