Frequency:
Up to 300 GHz (gigahertz)

Wavelength:
1 m to many km

Uses:

• • Radio transmissions
  • TV Transmissions (less common now as most TV comes through intranet cables)
  • RFID tags

Source:

• • Man-made radio waves are created by oscillating elecitic currents in an arial or antenna.

Detected by:
Antennas.

This small radio has an antenna that can be extended to help it receive radio signals.

Once a common site on the top of all buildings this is a TV antenna that would receive broadcast TV Signals.

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Links
https://en.wikipedia.org/wiki/Radio_wave