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Medium Frequency Radio Waves (MF)
Medium Frequency Radio Wave curve

Wavelength: 200 to 600 meters in length
Energy per photon: 10-7 to 10-8 electron volts
Harmful Effects: none known

Emitted by:

  • Radio station antennas for AM Radio
  • The Sun
  • Astronomical objects
Astronomical telescope
Radio Telescope. Image courtesy of NASA's Jet Propulsion Laboratory.

Detected by:

  • Home stereos
  • Transistor radios/AM radio band
  • Astronomical radio telescope
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