Technical data

12 SYSTem Subsystem
520 N1911A/1912A P-Series Power Meters Programming Guide
–226 Lists not same length
This occurs when SENSe:CORRection:CSET[1]|CSET2:STATe is set to ON and the
frequency and calibration/offset lists do not correspond in length.
–230 Data corrupt or stale;Please calibrate Channel B
When CAL[1|2]:RCAL is set to ON and the sensor currently connected to Channel B
has not been calibrated, then any command which would normally return a
measurement result (for example FETC?, READ?, or MEAS?) will generate this error
message.
–231 Data questionable;CAL ERROR
Power meter calibration failed. The most likely cause is attempting to calibrate
without applying a 1 mW power to the power sensor.
–231 Data questionable;CAL ERROR ChA
Power meter calibration failed on Channel A. The most likely cause is attempting to
calibrate without applying a 1 mW power to the power sensor.
–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
The power input to Channel A exceeds the power sensor’s maximum range.
–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
Power meter zeroing failed. The most likely cause is attempting to zero when some
power signal is being applied to the power sensor.
–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.
–232 Invalid format