The 5-centimeter or 5 GHz band is a portion of the SHF (microwave) radio spectrum internationally allocated to amateur radio and amateur satellite use on a secondary basis. In ITU regions 1 and 3, the amateur radio band is between 5,650 MHz and 5,850 MHz. In ITU region 2, the amateur radio band is between 5,650 MHz and 5,925 MHz. The amateur satellite service is allocated 5,830 to 5,850 MHz, for down-links only on a secondary basis, and it is also allocated 5,650 to 5,670 MHz, for up-links only on a non-interference basis to other users (ITU footnote 5.282). Amateur stations must accept harmful interference from ISM users operating in the band.[1] The band is within the IEEE C Band spectrum.

The 5 cm band in the United States overlaps part of the U-NII band and all of 5 GHz ISM band. Both overlapping bands are available for license-free applications such as WiFi or Part 15 devices.[2]

5 cm is one of the primary bands for high-speed multimedia radio, as most U-NII and Part 15 equipment may be re-tuned to amateur frequencies.

List of notable frequencies

ITU regions.
  Region 1
  Region 2
  Region 3
  • 5,668.2 MHz Region 1 Calling Frequency 1[3]
  • 5,760.1 MHz Region 2 Calling Frequency[4]
  • 5,760.2 MHz Region 1 Calling Frequency 2[3]
  • 5,800 MHz ISM band center frequency

See also

References

  1. ↑ "FCC Online Table of Frequency Allocations" (PDF). 47 C.F.R. Federal Communications Commission. August 13, 2015. Retrieved October 27, 2015.
  2. ↑ "Title 47 CFR Part 15 Subpart E". Archived from the original on 2011-06-12.
  3. 1 2 "VHF Managers Handbook". 7. International Amateur Radio Union Region 1. January 2015. pp. 45–46. Archived from the original (PDF) on June 17, 2018. Retrieved October 27, 2015.
  4. ↑ "IARU Region 2 Band Plan" (PDF). International Amateur Radio Union Region 2. October 14, 2016. p. 14.


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