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Which bands are available to amateur radio operators?

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Licensed amateur radio operators may build and operate their own transmitters within allocated bands and power limits, which makes amateur radio a major path for hands-on RF learning. In the US, 47 CFR Part 97 defines the bands and privileges, for example 14.000–14.350 MHz (20 m), 50–54 MHz (6 m), 144–148 MHz (2 m), 420–450 MHz (70 cm) and microwave allocations including 10.0–10.5 GHz.[1] International allocations derive from the ITU Radio Regulations and vary by region.[2]

Why is amateur radio useful for RF design learning?

Operators can legally transmit with homemade amplifiers, filters, antennas and SDRs, test propagation over real paths, and use extensive community literature such as the ARRL Handbook.[3]

What rules apply to equipment?

Part 97 sets spurious emission standards, maximum power (1,500 W PEP in most US bands with exceptions), and operator responsibilities; equipment does not need certification but must comply with technical standards and RF exposure evaluation.[1][4]

Can amateur bands be used commercially?

No; amateur service rules prohibit communications for pecuniary interest. Commercial products use licensed or unlicensed (e.g., Part 15) spectrum.[1]

Frequently asked questions

Do I need a license to transmit on amateur bands?

Yes, an amateur license appropriate to the band.

Is 2.4 GHz shared with amateurs?

Parts of 2.4 GHz are shared amateur allocations, with Part 15 devices also operating there.

Where are band plans published?

Regulators publish allocations; national societies publish voluntary band plans.

References

Online sources accessed October 21, 2026; printed works cited by edition. See all sources.

  1. “47 CFR Part 97: Amateur Radio Service”. U.S. Federal Communications Commission, via eCFR. current.
  2. “Radio Regulations”. International Telecommunication Union (ITU-R). 2024 edition.
  3. “The ARRL Handbook for Radio Communications”. ARRL. annual editions.
  4. “47 CFR 1.1310: Radiofrequency radiation exposure limits”. U.S. Federal Communications Commission, via eCFR. current.
Categories: Standards and bands