Mobile Tech Glossary

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FCC - The FCC is the agency within the United States government that regulates wired and wireless communications inside the country. Any device that transmits on a regulated frequency band in the US requir...

fixed focus - Fixed focus refers to a type of lens that can not adjust its focal point, the distance where images appear sharp and in focus. Fixed focus lenses rely on their typically large depth-of-field in order...

focal length - The focal length of a lens determines how much magnification it provides. A lens with a shorter focal length will be able to "see" a wider view of a subject than can a lens with a longer focal length...

focal point - The focal point of a camera lens is the distance where subjects in front of the lens appear to be in sharp focus.br/br/ br/br/ ...

FOMA - FOMA is the 3G network developed by NTT DoCoMo, the world's first. It is based on WCDMA technology, but is not compatible with the European UMTS standard. NTT DoCoMo has stated that they are working...

Frequency - Rate of signal oscillation in Hertz (wave form repetitions per second - one Hz is one cycle per second). The frequencies band assigned to GSM is 900-1800 MHz. For 3G the bands assigned are between 188...

frequency band - Frequency bands are groupings of radio frequencies that are used by mobile networks to communicate with mobile phones. The frequency bands that a phone supports determine to a large degree where and ...

Full Duplex - Refers to a communication system or equipment capable of simultaneous transmission in two directions. ...

Mobile Tech Glossary