Digital Average Power Troubleshooting

Last updated: May 24, 2006

Possible Setup Issues

The digital average power measurement has a bandwidth of approximately 4 GHZ. For this reason, significant signal energy outside the 1.23 MHz access terminal transmit bandwidth will increase the measured value.
C.S0033 4.3.4 Maximum RF Output Power requires that the R-ACK Channel be active. In order for the R-ACK Channel to be active, you must set ACK Channel Bit Fixed Mode Attribute to on, and set AT Directed Packets to a non-zero value.
During remote operation of this measurement, you should configure the Trigger Arm to Single. See SETup:DAPower:CONTinuous or SETup[:ALL]:CONTinuous:OFF|:ON . If single triggering is used during manual operation, press the START SINGLE key to trigger each measurement.

Check to see if an integrity indicator other than 0 (normal) was returned with a measurement result (see Integrity Indicator ).
If over range (5) is returned the input power has exceeded the test set's internal sampler maximum value during some part of the sampling or the input power has exceeded the calibrated range of the test set's power detector.

If under range (6) is returned the measurement result is below the expected input power level. Under range is also indicated if the input power is below the calibrated range of the test set's power detector.

To avoid over range or under range integrity indicators, correct for system path loss (see Amplitude Offset ).
If you are manually controlling the test set's receiver, be certain that you have entered the correct frequency and power values for your test setup (see Receiver Control ).
Digital Average Power Input Signal Requirements
Calibrating the Digital Average Power Measurement