In
telecommunications, the coverage of a
radio station is the geographic area where the station can communicate.
Broadcasters and telecommunications companies frequently produce
coverage map
Coverage maps are designed to indicate the service areas of radiocommunication transmitting stations. Typically these may be produced for radio or television stations, for mobile telephone networks and for satellite networks. Such maps are alterna ...
s to indicate to users the station's intended service area. Coverage depends on several factors, such as
orography (i.e. mountains) and buildings, technology, radio frequency and perhaps most importantly for two-way telecommunications the sensitivity and transmit efficiency of the consumer equipment. Some frequencies provide better regional coverage, while other frequencies penetrate better through obstacles, such as buildings in cities.
The ability of a mobile phone to connect to a
base station
Base station (or base radio station) is – according to the International Telecommunication Union's (ITU) Radio Regulations (RR) – a "land station in the land mobile service."
The term is used in the context of mobile telephony, wireless com ...
depends on the strength of the signal. That may be boosted by higher power transmissions, better antennas, taller antenna masts or alternative solutions like in-building picocells. Normal Macro-Cell signals need to be boosted to pass through buildings, which is a particular problem designing networks for large metropolitan areas with modern skyscrapers, hence the current drive for small cells and micro and pico cells. Signals also do not travel deep underground, so specialized transmission solutions are used to deliver mobile phone coverage into areas such as
underground parking garages and
subway trains.
Coverage noticer
A coverage noticer is a device that beeps (or vibrates) when in a zone that lacks coverage (
white spot). This is fundamental for critical services (security, emergency and so on). When the user goes to a covered area, the noticer ceases beeping. Similarly coverage maps are often used to visualize coverage, these are produced by networks themselves as well as independent companies.
Coverage noticers can be integrated in a
mobile phone also and several apps exist to show coverage maps on devices, including
OpenSignal.
See also
*
Femtocell
*
Footprint (satellite)
*
Mobile phone
*
Mobile computing
Mobile computing is human–computer interaction in which a computer is expected to be transported during normal usage, which allows for the transmission of data, voice, and video. Mobile computing involves mobile communication, mobile hardware ...
*
Pass (spaceflight)
*
Roaming
Roaming is a wireless telecommunication term typically used with mobile devices, such as mobile phones. It refers to a mobile phone being used outside the range of its native network and connecting to another available cell network.
Technical ...
*
Telecommunications network
*
White spot
*
Wireless
External links
Understanding Cell Phone Coverage Areas. FCC Consumer Facts
*
Mobile telecommunications
Radio
Telecommunications infrastructure
{{radio-comm-stub