Wireless Networks: Radio Frequency (RF) http://simple-telecom.blogspot.com/2008/09/wire... The radio frequency spectrum is divided into frequency bands that are authorized for use in specific geographic regions. Globally, the International Telecommunications Union (ITU) specifies the typical use for radio frequency bands. Within each country, government agencies create and enforce the rules for which specific types of systems and services are used in specific frequency bands and which companies will be able (will be licensed) to own and operate these systems.
Wireless Networks - Radios http://simple-telecom.blogspot.com/2008/09/wire... Radios may be fixed in location (such as a television) or may be mobile (such as a cellular telephone). Some radios may only communicate in one direction (typically a receiver) or may have two-way capability. When a single radio has both a transmitter and receiver contained in the same unit, it is called a transceiver.
Wireless Networks - Technologies http://simple-telecom.blogspot.com/2008/10/wire... Key enabling technologies for wireless communication include digital modulation, data compression, and digital signal processing.
Cellular and Personal Communication Service (PCS) - (Wireless Networks) http://simple-telecom.blogspot.com/2008/10/cell... Mobile telephones connect people to the public switched telephone system (PSTN) or to other mobile telephones. Mobile telephone service includes cellular, PCS, specialized and enhanced mobile radio, air-to-ground, marine, and railroad telephone services.
Broadcast Television (Wireless Networks) http://simple-telecom.blogspot.com/2008/10/broa... Television broadcasting is the transmission of video and audio to a geographic area that is intended for general reception by the public, funded by commercials or government agencies. Television broadcasters transmit at high power levels from several hundred foot high towers. A high-power television broadcast station can reach over 50 miles.
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Wireless Local Loop (WLL) http://simple-telecom.blogspot.com/2008/11/wire... Wireless local loop (WLL) service refers to the distribution of telephone service from the nearest telephone central office to individual customers via a wireless link. In some cases, it is referred to as “the last mile”¯ in a telephone network. This term is a bit misleading, though, because the coverage area of a WLL system may extend many miles from the central office.
Aircraft Telephones (Wireless Networks) http://simple-telecom.blogspot.com/2008/11/airc... Aircraft telephones allow people on an airplane to initiate telephone calls with the public telephone system through connection via land based radio or satellite transmission systems. Recently, some aircraft telephone systems have been upgraded to allow calls to be received on the airplane.
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Best Wireless Services For You http://www.articlesbase.com/customer-service-ar... The process of choosing the best wireless services for a certain person is typically the same for everybody.
