Phone Scoop

printed November 28, 2015
See this page online at:

Home  ›  Glossary  ›


Frequency Division Duplex

A method of two-way radio communication where devices on one end transmit using one radio frequency, while devices on the other end transmit using a different frequency. This allows simultaneous two-way communication without interference.

This is how most cellular phone networks are designed. Phones transmit to network towers using one frequency, while towers transmit to phones on a different frequency.

The alternative is TDD, or Time Division Duplex, where radios at each end "take turns" using the same frequency.

See: TDD

Still confused? Spot a mistake? Give us your feedback on this definition.

back to Glossary Index

Subscribe to Phone Scoop News with RSS Follow @phonescoop on Twitter Phone Scoop on Facebook Subscribe to Phone Scoop on YouTube Follow on Instagram


All content Copyright 2001-2015 Phone Factor, LLC. All Rights Reserved.
Content on this site may not be copied or republished without formal permission.