Communications / Spread-Spectrum Radios
Spread-Spectrum Radios

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Frequency Country Used In Transmission Distance

RF407

902 to 928 MHz US, Canada
  • -Note- Transmission distance assumes line-of-sight and appropriate antenna. Line-of-sight obstructions, RF interference, and antenna type will affect transmission distance.
  • Up to 1.61 km (1 mi) with omnidirectional antenna; up to 16.09 km (10) mi with higher-gain directional antennas at ideal conditions

Other Considerations

Frequency Country Used In Transmission Distance

RF412

915 to 928 MHz Australia, New Zealand
  • -Note- Transmission distance assumes line-of-sight and appropriate antenna. Line-of-sight obstructions, RF interference, and antenna type will affect transmission distance.
  • Up to 1.61 km (1 mi) with omnidirectional antenna; up to 16.09 km (10 mi) with higher-gain directional antennas at ideal conditions

RF422

863 to 870 MHz EMEA (Europe, Middle East, and Africa)
  • -Note- Transmission distance assumes line-of-sight and appropriate antenna. Line-of-sight obstructions, RF interference, and antenna type will affect transmission distance.
  • Up to 5 km (3.11 mi) depending on antenna and line-of-sight

RF401A

910 to 918 MHz US, Canada
  • -Note- Transmission distance assumes line-of-sight and appropriate antenna. Line-of-sight obstructions, RF interference, and antenna type will affect transmission distance.
  • Up to 1.61 km (1 mi) with omnidirectional antenna; up to 16.09 km (10 mi) with higher-gain directional antennas at ideal conditions

RF411A

920 to 928 MHz Australia, New Zealand
  • -Note- Transmission distance assumes line-of-sight and appropriate antenna. Line-of-sight obstructions, RF interference, and antenna type will affect transmission distance.
  • Up to 1.61 km (1 mi) with omnidirectional antenna; up to 16.09 km (10 mi) with higher-gain directional antennas at ideal conditions

RF416

2.450 to 2.482 GHz Any country where 2.4 GHz Wi-Fi communications are allowed 0.4 km (0.25 mi) with omnidirectional antenna (outdoors); up to 0.8 km (0.5 mi) with higher-gain directional antennas at ideal conditions

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Number of FAQs related to Spread-Spectrum Radios: 5

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  1. Is an individual FCC license required to use a spread-spectrum radio?

    No. A spread-spectrum radio, like all FCC Part 15 devices, is not allowed to cause harmful interferences to licensed radio communications and must accept any interference that it receives. 

  2. Can a spread-spectrum radio be used as a repeater in an RF telemetry network?

    Yes.

  3. Is there a recommended RF filter for removing local interference while using a spread-spectrum radio?

    No. Removing the interference will remove the radio signal. The radio, like all FCC Part 15 devices, is not allowed to cause harmful interferences to licensed radio communications and must accept any interference that it receives.

  4. Can a spread-spectrum radio be used to connect two computers without a data logger?

    Yes. Two spread-spectrum radios can be used to connect two computers.

  5. How does a spread-spectrum radio work?

    Spread-spectrum radios work by frequency hopping and transmitting at discrete frequencies over part of the unlicensed band, rather than by transmitting over a very wide part of the spectrum as some other devices do.

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