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That takes me back! I earned my first 'ham' operator's license in 1956, and the '11-meter'

amateur band still existed at 27 MHz. But not for long after that.

In 1958 the Class D CB service was moved to 27 MHz, and this band became what is now

popularly known as 'CB'. There were only 23 channels at the time ... 22 from the former

amateur 11-meter band, and channel 23 was shared with radio-controlled devices.

Some hobbyists continue to use the designation "11 meters" to refer to the Citizens'

Band and adjoining frequencies. Beginning in the 1970s, Part 95 of the Code of Federal

Regulations regulated the Class D CB service, on the 27 MHz band.

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