Both operate on clear channel frequencies, allowing their signals to be heard across much of North America.

In U.S. systems, the set of channel frequencies for a system or area were usually unique to each trunked system.

This was not a problem in Sydney or Adelaide where the channel 10 frequency was used by the 0/10 Network.

Eventually the channel 2 frequency (54-60 megahertz) will be available for other uses.

He answered and turned to another channel frequency as instructed.

The actual channel frequencies are listed here:

The channel 57 frequency was originally assigned to Easton, Pennsylvania.

The channel 38 frequency remained dark for 21 years, until WTTA signed on in June 1991.

The channel 28 frequency was originally home to WTVM from 1953 to 1960, when it moved to channel 9.

He also discovered that two entities were already competing for the channel 30 frequency.