Two-way radios play a more important role in industry, event management and emergency services applications than most people realize.

Two-way radios are available in mobile, stationary base and hand-heldportable configurations. These are half-duplex devices and are usually equipped with a push-to-talk button. Repeaters may be used to extend the range between radio units.

Trunked radio, a specialized repeater system, may be implemented to allow a large number of users to share a relatively small number of frequencies. One or more towers could be installed to support a trunked radio deployment.

Points to keep in mind:

  • Radio communications are not private, so don’t share confidential information
  • Keep messages short and ensure clear understanding of your communication
  • Repeat important messages back to avoid misunderstanding
  • Keep your radio powered off and charging when not in use
  • Industry Canada requires two-way radio frequencies to be licensed

VHF or UHF

Selecting the correct frequency type for the intended use of your two-way radios is very important.

  •  VHF radios have a longer wavelength and are mostly suitable for outdoor use in open areas.
  • UHF radios are suitable for indoor and mixed use. UHF, with its short wavelength is effective within metal and concrete sites, or heavily wooded outdoor areas.

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