Keysight E5071C ENA Service Manual page 350

Messages
Error Messages
P
-220 Parameter error
When a parameter-related error other than Errors -221 through -229 occurs,
that error is displayed.
-108 Parameter not allowed
The number of parameters exceeds that required for the command.
For instance, when a program message ":SENS1:SWE:TYPE LIN, SEGM" is sent
instead of a correct program message with a command ":SENS1:SWE:TYPE
LIN" which requires a parameter, the instrument receives the message as the
number of parameters is invalid. See the command reference to confirm the
required number of parameters.
41 Peak not found
This error occurs when, after specifying a peak and executing the
CALC:MARK:FUNC:EXEC and CALC:FUNC:EXEC commands, the specified
peak is not found in the marker search analysis.
220 Phase lock loop unlocked
This error occurs when the PLL circuit of this instrument becomes unlocked
while the measurement is in progress. The measurement value is not correct.
This error may occur when an external reference out of specification is
connected to this instrument. Should an error occur with an external reference
not connected, this instrument is faulty. Contact an Keysight Technologies
sales office or the company from which you bought the instrument.
221 Port 1 receiver overload
The input to Test Port 1 exceeds the maximum input level. The measurement
value is not correct. When a DUT is an amplifier or the like, this error may
occur, damaging the receiver in the worst case. Should this error occur with a
passive part used as the DUT or with nothing connected to the test port, this
instrument is faulty. Contact an Keysight Technologies sales office or the
company from which you bought the instrument.
If this error occurs, the stimulus signal output is automatically turned to off.
When FOM function or an external signal source is used over 8.5 GHz
frequency measurements with E5071C-Over 8.5 GHz Options, there is a
possibility that overload detection and power trip occurs even if you
measure the devices under the maximum input level. In that case, turn OFF
the overload & power trip detect function after ensuring the value of input
power level.
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Keysight E5071C Service Manual