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Amateur radio

Belongs to:
Mobile communications and radio applications
Synonyms:
Ham radio
Description:

Amateur radio is a radio service that is used by hams for communication among each other. In contrast to CB-radio, the usage of amateur radio requires (except at educational establishments) an examination at the Federal Network Agency in Germany in order to ensure regulations in amateur radio. The hardware consists of a radio device, an antenna and measurement devices. The antenna is commonly established at the roof.

Frequency ranges:
  • 3.5–29.7 MHz
Type of field:
electromagnetic

Measurements (acc. to literature)

antenna
Measurand Value Feature Remarks
electric field strength 1–200 V/m (maximum) - for five frequency band with wavelenghts 80, 40, 20, 15 and 10 m; appropriate 3.75 MHz, 7.5 MHz, 15 MHz and 30 MHz. [1]
magnetic field strength 2–1,400 mA/m (maximum) - for five frequency band with wavelenghts 80, 40, 20, 15 and 10 m; appropriate 3.75 MHz, 7.5 MHz, 15 MHz and 30 MHz. [1]

References

  1. Mantiply ED et al. (1997): Summary of measured radiofrequency electric and magnetic fields (10 kHz to 30 GHz) in the general and work environment.