Every channel can be programed at a different frequency. Most modern 2 way radios can have between 4 and 16 channels, although some radios may have up to 256 channels. Channel one will be the only channel that broadcasts on the frequency being used. It is beneficial for commercial applications to have different communication depending on the work group or whereabouts. Radios can be used by schools to broadcast the news. Teachers and administrators might prefer one channel.