Telecommunication
The other meaning of the term "channel" in telecommunications is seen in the phrase communications channel, which is a subdivision of a transmission medium so that it can be used to send multiple streams of information simultaneously. For example, one radio station can broadcast radio waves into free space at frequencies in the neighborhood of 94.5 MHz (megahertz) while another radio station can simultaneously broadcast radio waves at frequencies in the neighborhood of 96.1 MHz. Each radio station would transmit radio waves over a frequency bandwidth of about 180 kHz (kilohertz), centered at frequencies such as the above, which are called the "carrier frequencies". Each station in this example is separated from its adjacent stations by 200 kHz, and the difference between 200 kHz and 180 kHz (20 kHz) is an engineering allowance for the imperfections in the communication system.
Association of Community Access Broadcasters
Access Manawatu broadcasts on 999 AM in Manawatu. It operates up to 13 hours each day, and includes many shows about groups, hobbies, interests, faiths and communities that are not represented in other media. Its 999 AM frequency reaches as far as Marton and Porewa in the north, Woodville and Pahiatua in the east, and Foxton and Shannon in the south. The station is owned by Manawatu Access Radio Charitable Trust and receives funding from Palmerston North City Council, Destination Manawatu and other funding bodies.