Mobile Network frequency bands operating in an area forms one of the major part of any phone specification, The frequency bands supported by an electronic gadget like phone helps to determine the compatibility of the handset with a network carrier.
What is Mobile Network Frequency Bands?
Mobile Network Frequency bands simply represent intervals in the frequency domain, bordered by a lower frequency and an upper frequency. Normally, a radio communications signal usually have a range of frequencies conveying most of its energy, known as bandwidth.
Frequency band In telecommunication is a particular range of frequencies in the radio frequency (RF) spectrum. They are in ranges from very low frequencies (vlf) to extremely high frequencies (ehf).
What Frequencies do cell phones use?
Cell phone carriers use two common mobile network frequency bands. The first one is the “Cellular band” usually called 1900 which uses the frequency range of 1850-1990. The second band is PCS which is the 800 MHz band uses frequency range of 824 to 894.
There are quite some GSM phones that support three bands (900/1,800/1,900 MHz or 850/1,800/1,900 MHz) or even four bands (850/900/1,800/1,900 MHz).
These type of phones are referred to as tri-band and quad-band phones, it’s also known as world phones meaning one can travel to any part of the world using the same phone. I would like to call that phone an “international phone.”
What Frequencies do Apple Phones support?
Recent example the Apple iPhone 5 and iPhone 4S support quad-band GSM at 850/900/1800/1900 MHz, quad-band UMTS/HSDPA/HSUPA at 850/900/1900/2100 MHz, and dual-band CDMA EV-DO Rev. An at 800/1900 MHz, for a total of ‘six’ different frequencies (though at most four in a single mode).
coverage is simply the geographic area where a station can communicate
Some phones beep or vibrate when it’s out of the coverage zone or in a new zone, this indicates the presence of a coverage notice in the phone.