630-meter band

This article is about the amateur radio band. For the maritime band, see 500 kHz.

The 630-meter (or 600-meter) amateur radio band is a frequency band allocated by the International Telecommunication Union (ITU) to amateur radio operators, and it ranges from 472–479 kHz, or equivalently 625.9–635.1 meters wavelength. It was formally allocated to amateurs at the 2012 World Radiocommunication Conference (WRC-12). The band is available on a secondary basis in all ITU regions with the limitation that amateur stations have maximum radiated power of 1 watt effective isotropic radiated power (EIRP); however, stations more than 800 km (500 miles) from certain countries[a] may be permitted to use 5 watts EIRP.[2][3][4]

The new WRC-12 allocation did not take formal effect until 1 January 2013.[3][4] However, several countries had already allocated the WRC-12 band to amateurs domestically. Previously, several other countries authorized temporary allocations or experimental operations on nearby frequencies.

The band is in the medium frequency (MF) region, within the 415–526.5 kHz maritime band.

  1. ^ Cite error: The named reference WRC-12 was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference QST-BandBorn was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference QST-Apr2012-Happenings was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference QST-WRC-12 was invoked but never defined (see the help page).


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