Each frequency assigned to a noncommercial owner meant one less competitor selling advertising.

The frequencies assigned for short wave diathermy operations are 13.66, 27.33, and 40.98 megahertz.

The frequencies assigned to broadcast shortwave are chopped up into separate groups known as meter bands.

Such systems use the same frequencies assigned for space usage.

During World War II the frequencies originally assigned to channels 13 to 18 were appropriated by the military, which still uses them.

The agency also proposed letting the companies take over frequencies assigned to instructional services that are not being used.

The interference was caused by the use of frequencies assigned to Croatia by Italian transmitters and excessive transmitter power.

And these manmade constellations, they complain, are increasingly invading the frequencies assigned to radioastronomy.

The frequency assigned to Airfone and other in-flight phones is unique, so it does not interfere with the plane's navigation, communications or data processing equipment.

In telecommunications, spectral component is any of the waves that range outside the interval of frequencies assigned to a signal.