However, by putting RF energy outside of the normally-defined channel, interference to adjacent channel stations is increased when using digital sidebands.
To see a list of Canadian clear channel stations; Template:Clear-channel AM.
It was the first time that a 50,000-watt clear channel station was perceived as 'our station' by the young people who were listening to radio.
This is done to protect "clear channel" station WCCO in Minneapolis.
All of the local channel stations complied, and boosted their power.
On May 29, 1980, the FCC voted to limit the protection for the twenty-five clear channel stations to a 750-mile radius around the transmitter.
The station initially signing on at 820 AM in 1992 as a non-clear channel station only.
There were major concerns of skywave interference to clear channel stations, so only a handful of stations were permitted to apply.
They, among others, are all considered "clear channel" stations.
Non-clear channel stations typically have reduced coverage at night, due to noise and a mish-mash of other stations propagating in via skywave after dark.