Frequency and Frequency Band

The wave produced per second from any medium is called frequency and is denoted by “F”. Unit of measuring frequency is “Cycles per Second”. It is denoted by C/S. “Cycle per Second” is also known as “Hertz” Unit. Hertz is denoted by Hz. C/S and Hz are same units. The units bigger than Hertz are correlated as follows:

• 1000 Hz (Hertz) = 1 KHz (Kilo Hertz)
• 1000 KHz = 1 MHz (Mega Hertz)
• 1000 MHz = 1 GHz (Giga Hertz)

Mobile Phone Frequency

Frequency Bands in Mobile Phones

A specific range of frequencies which are used in telecommunication for a particular purpose is called band. This is a part of long series of frequencies.

Band Width or Bandwidth

Bandwidth or Band Width is a term used to define the quantum of frequency space taken by a signal and is necessary for effective transfer of the information carried by the signal.

Dual Band Devices

These are gadgets which have the capability of functioning under two different frequency bands. Generally mobile cell phones work on dual band frequency network. It is designed to work on 900 MHz and 1800 MHz. It is called 900 MHz or GSM900 Band. Its bandwidth is between 935 to 960 MHz. 1800 MHz band is called GSM1800 or DCS1800. Its bandwidth ranges from 1805 to 1880 MHz.