Dynamic Power Measurement Description

Last updated: May 8, 2002

This measurement is not applicable to GPRS.

How is a Dynamic Power Measurement Made?

The Dynamic Power measurement performs a series of consecutive power measurements on a mobile station returning a power measurement and an integrity value for each burst measured. Dynamic Power is only available via the test set's remote user interface.

Dynamic Power is not an ETSI specified measurement.

The signal is measured at the RF IN/OUT port.

Single or Multi-Measurements

The Dynamic Power measurement does not use the multi-measurement state parameter, and so does not return minimum, maximum, and standard deviation values. Instead, you specify the number of bursts that you want to measure using the Number of Bursts parameter (see SETup:DPOWer:COUNt:NUMBer[:SELected] ). A single measurement returns the integrity indicator and power level for every burst measured. For example, if you set the number of bursts to 15, the returned comma-separated list contains 15 integrity values followed by 15 corresponding measurement values.

Types of Signals Dynamic Power can Measure

Dynamic Power measurements can be made on these types of input signals:

Normal GSM TCH burst with mobile station in active cell mode.
Normal GSM TCH burst with mobile station in test mode (no protocol).

Input Signal Requirements

The Dynamic Power measurement will complete and meet its measurement accuracy specifications when the signal meets the following input signal conditions.

Input signal level is between -20 dBm and +43 dBm.
Input signal level is within +3 dB and -3 dB of the expected input level.
Input signal is within 100 kHz of the measurement frequency.
The measurement frequency is within the currently selected band.

Trigger Source

The only trigger source that the Dynamic Power measurement supports is RF Rise.