Wednesday, May 20, 2009

Television channel

A television channel is a physical or virtual over which a or is distributed. For example, in "channel 2" refers to the broadcast or cable band of 54 to 60 mhz, with of 55.25 MHz for analog video ( 59.75 MHz for analog audio (, or 55.31 MHz for digital Channels may be shared by many different television stations or cable-distributed channels depending on the location and service provider.

Depending on the multinational for a given region, channels are typically 6, 7, or 8 MHz in , and therefore vary as well. Channel is also different. are the same for reasons, however through each physical (RF) channel can carry several , each normally carries one channel, however can be used on each transponder, with some loss of due to the need for between unrelated , used in and has a similar segmented mod

Television station

A television station is a type of broadcast station that both and in a particular area. Traditionally, TV stations made their broadcasts by sending specially-encoded signals over the air, called . Individual television stations are usually granted by a to use a particular section of the (a through which they send their signals. Some stations use to to further areas.

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