Last updated: 2014-11-28
The test set can evaluate its own performance and make a determination as to the validity of a measurement result. The test set evaluates the conditions surrounding a measurement and reports to the user its evaluation of these conditions in a parameter called the measurement integrity indicator. A measurement integrity indicator value is returned for every completed measurement. It is recommended that the user take advantage of this feature in every measurement.
The returned value defines whether or not a problem was encountered by the measurement process. It is not, however, guaranteed to be the only or root cause of the measurement problem. This is because some of the conditions surrounding a measurement may interact, and the test set may have insufficient information to determine the root cause of the measurement problem. However, in most cases, the value returned is the most likely cause of the problem.
Not all of the integrity indicator values are available for each measurement or test application, if a value doesn't apply it will not be available.
0: Normal: Indicates the measurement completed successfully without error and the result is accurate.
1: No Result Available: Indicates that there is no measurement result and returns NAN (not a number).
2: Measurement Timeout: Indicates that a measurement has timed out. The measurement timeout state must be set to ON.
4: Hardware Error: Indicates that a hardware failure has occurred. These include failures such as a phase lock loop out-of-lock, defective DSP samplers, or power detectors that can not be calibrated.
5: Over Range: Indicates that the input signal is over range. The amplitude of the device-under test's (DUT's) signal is causing the voltage at a DSP sampler to be above its maximum input level or the frequency is too high or the voltage measured is beyond the maximum voltmeter range, either positive or negative.
6: Under Range: Indicates that the input signal is under range. The amplitude of the DUT's signal is not high enough for the DSP sampler to produce accurate results with the measurement algorithm.
8: Trigger Early or Fall Early: Indicates that the DUT's burst amplitude fell prematurely or, due to an early trigger (early relative to a transmitted burst) the measurement sampling operation terminated before the falling edge of the burst.
9: Trigger Late or Rise Late: Indicates that either the rising edge of the DUT's burst was late or, due to a late trigger (late relative to a transmitted burst) the measurement sampling operation didn't start until after the rising edge of the transmitted burst.
11: Sync Not Found: The given midamble is not found. Possible reasons include: frequency is out of range, trigger location is out of range, or the midamble ID and/or shift is not correct.
12: Oven Out of Range: Indicates that a temperature controlled oven (other than the internal timebase oven) is outside of its operating range. The power meter's oven is checked and its condition reported with this value. (The internal timebase generates a temporary error message (out of lock) that is sent to the system error queue and the display. This is not an integrity indicator value, it is an error message.)
13: Unidentified Error: Indicates errors which are not covered by the other integrity values. Examples include: parameter errors, algorithm memory errors (too many measurements), measurements unavailable (unable to control), autorange unable to converge, default calibration data used.
19: Uncalibrated Due To Temperature: Indicates that the ambient temperature changes more than 10 degrees C since latest calibration, when attempting a Channel Power Measurement.
20: Potential Receiver Saturation: Indicates that an input signal immediately prior to the measured input was high enough to potentially saturate the receiver hardware.
21: Parameter Error: Indicates that a measurement setup parameter has been set in a way that gives invalid measurement results.
22: Unsupported Configuration: Indicates that some parameter, other than a measurement setup parameter has been set so that it causes an invalid measurement result. Typically this would be a base station emulator parameter.
23: Call Processing Operation Failed: Indicates that a call processing operation, (base station emulator) needed in the course of making the measurement could not complete.
24: Calibration Error
25: Burst Not Found
26: Missing Loopback Packets or AT Buffer Overflow: Indicates that Loopback Packets are missing, or the Access Terminal had an overflow. This integrity indicator was added for the 1xEV-DO Packet Error Rate measurement.
27: No AT Loopback Packets: Indicates that no Loopback Packets from the Access Terminal were detected for a period of several seconds.
28: Questionable MS-to-Cell Data: Indicates that a condition exists on the uplink or reverse channel that has caused the measurement results to be in question.
30: Trigger Missed: Indicates one or more triggers were missed during the measurement.
32: Measurement Not Licensed: Indicates that the required feature license for the measurement is not present. See http://www.keysight.com/find/8960upgrades for details on hardware and software requirements to run a specific feature.