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HP4402.book : chapter4.fm 9 Fri Feb 12 15:32:45 1999

Error Messages

HP E4419B User’s Guide 4-9

-231 Data questionable;CAL ERROR ChB

Power meter calibration failed on channel B. The most likely cause is

attempting to calibrate without applying a 1 mW power to the power

sensor.

-231 Data questionable;Input Overload ChA

The power input to Channel A exceeds the power sensor’s maximum

range.

-231 Data questionable;Input Overload ChB

The power input to Channel B exceeds the power sensor’s maximum

range.

-231 Data questionable;Lower window log error

This indicates that a difference measurement in the lower window has

given a negative result when the units of measurement were

logarithmic.

-231 Data questionable;Upper window log error

This indicates that a difference measurement in the upper window has

given a negative result when the units of measurement were

logarithmic.

-231 Data questionable;ZERO ERROR ChA

Power meter zeroing failed on channel A. The most likely cause is

attempting to zero when some power signal is being applied to the

power sensor.

-231 Data questionable;ZERO ERROR ChB

Power meter zeroing failed on channel B. The most likely cause is

attempting to zero when some power signal is being applied to the

power sensor.

-241 Hardware missing

The power meter is unable to execute the command because either no

power sensor is connected or it expects an HP E-series power sensor

and one is not connected.

-310 System error;Ch A Dty Cyc may impair accuracy with ECP

sensor

This indicates that the sensor connected to channel A is for use with

CW signals only.

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HP E4419B User Manual

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