Agilent Technologies 8960 Series Reference Manual page 584

Channel Power Troubleshooting
Possible Setup Issues
During remote operation of the channel power measurement you should configure the trigger arm to single.
See "SETup:WCPower"
If the trigger arm is not set to single, you may not be able to retrieve measurement results during remote use
if you are using the INIT:DONE? query. When the trigger arm is continuous, the measurement rearms itself
and starts another measurement cycle, causing the INIT:DONE? query to always return "WAIT". See
Arm (Single or Continuous) Description"
The trigger source defaults to Auto for the channel power measurement, and tries to use protocol triggering if
the mobile station (UE) is synchronized to the test set. Immediate triggering is used if the mobile station is not
synchronized.
RF Rise triggering should only be used when a burst is sent, such as a PRACH burst.
Autoranging is not available for this measurement. The expected input level is determined by either the MS
Target Power setting, when automatic receiver control is used (default), or by the Manual Power setting when
manual receiver control is selected. See
Measurement results are affected by any amplitude offsets that are entered. See
The channel power measurement value may be slightly lower than the thermal power measurement's value
(typically about 0.25 dB). This is because the channel power measurement is band-limited, rejecting the
additional power that may be in the uplink signal's sidebands.
Interpreting Integrity Indicator Values
If Over Range (5) is returned, the measured signal exceeds the expected input level or exceeds the maximum
allowed input power for the test set.
If Under Range (6) is returned, the measured signal is below the expected input level.
If Uncalibrated Due to Temperature (19) is returned, the temperature in the test set has changed by ± 10°
C or more since the last calibration and should be calibrated again.
221.
See "Integrity Indicator"
.
for more explanation.
"Receiver Control"
.
.
See "Measurement calibration" on page
S:\Hp8960\E1963A WCDMA\4.0 release\Reference Guide\Chapters\wcdma_ts_chanpow.fm
Channel Power Troubleshooting
"Trigger
"Amplitude Offset" .
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