The roll out of UMTS 3G mobile services has now begun in earnest, and whilst the availability of customer terminals has slowed deployment of some systems, most network implementation are now moving ahead. This article explains the relevant background to the technologies and by examining the measurement basics, shows that CW measurements are valid for W-CDMA systems as long as fast sampling methods are employed.

For more information on UMTS testing, visit Willtek Communications’ Web site.