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Radio set

Belongs to:
Consumer electronics
Description:

A radio set is an electric device for the reception and playback of audio transmissions through radio waves.

A radio set itself only emits electric and magnetic fields at the fundamental frequency of 50 Hz resp. 60 Hz. However, it receives very high frequency (VHF) signals, e.g. between 87 MHz - 108 MHz.

Frequency ranges:
  • 50–60 Hz
Type of field:
electric and magnetic

Measurements (acc. to literature)

Measurand Value Feature Remarks
magnetic flux density 0.01 µT (mean, measured) - average value of 23 devices at a distance of 1 m; measurement bandwidth: 40 - 800 Hz [1]
magnetic flux density 0.06 µT (mean, measured) - average value of 23 devices at a distance of 50 cm; measurement bandwidth: 40 - 800 Hz [1]
magnetic flux density 1 µT (maximum) - at a distance of 30 cm [2]
magnetic flux density 3 µT (mean, measured) - average value of 23 devices at a distance of 5 cm; measurement bandwidth: 40 - 800 Hz [1]
magnetic flux density 15–60 µT (maximum) - at a distance of 3 cm [2]

References

  1. Preece AW et al. (1997): Magnetic fields from domestic appliances in the UK
  2. Neitzke HP et al. (2006): [EMF manual - Electromagnetic fields: sources, risks, protection]