The 11 meter band is used by both CB radio, as well as freeband unlicensed hobbyists, Church radio broadcasts in Ireland and elsewhere in Europe, the military, data links, buoys, fishnet tracking systems, pagers and other non-voice purposes.
11 meters is often defined as 25-28 MHz / 25000-28000 kHz or 26-28 MHz / 26000-28000 kHz. It may also refer to the basically never-used 11 meter shortwave broadcast band 25670 kHz to 26100 kHz or 25.67 MHz to 26.1 MHz. The original 11 meter amateur radio allocation was 26.96 MHz to 27.23 MHz and it was from this that the original Class D CB service was born.
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