Agilent Technologies E8285A manual Measured FER is displayed as 1.4%, Failed annunciator

Models: E8285A

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Chapter 4, Description of Fields

Fields

Failed (annunciator)

This annunciator is lit when an FER test has failed. An FER test fails when the measured FER is greater than the target FER with the specified confidence level, according to the criteria established by the confidence level and FER specification.

Example “Failed” FER measurement

FER Spec set to 1%

Confidence set to 95%

Measured FER is displayed as 1.4%

With the parameters specified above, Failed means that the measured value of 1.4% indicates a true FER of greater than 1% with a confidence level of 95%.

GPIB Example

“DISP CRXT;STATus:CDMA:CONDition?“

queries the CDMA condition register. If bit 9 is set (a decimal value of 512), the failed condition is true.

Max Frames (annunciator)

This annunciator is lit when an FER test terminates by reaching the number of frames entered for maximum frames to test. In this case, the measured FER neither passed nor failed the FER specification with the specified confidence level within the number of frames entered into the Max Frames field.

GPIB Example

“DISP CRXT;STATus:CDMA:CONDition?“

queries the CDMA condition register. If bit 8 is set (a decimal value of 256), the maximum frames condition is true.

Screens Where Field is Present

CDMA CELLULAR MOBILE RECEIVER TEST

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Agilent Technologies E8285A manual Measured FER is displayed as 1.4%, Failed annunciator, Example Failed FER measurement