Agilent Technologies E5071C ENA Service Manual page 302

Messages
Invalid suffix
quotation mark character appears, for example.
-131 Invalid suffix
The suffix does not comply with the syntax defined in 7.7.3.2, IEEE488.2. Or it does not
suit E5071C.
L
53 Log sweep requires 2 octave minimum span
The span of sweep range is not satisfied the requirement for logarithmic sweep. The sweep
type is automatically changed to linear sweep when this error occurs.
For example, this error occurs when, with the start and stop frequency are set 1 MHz and 2
MHz respectively, the sweep type is changed to logarithmic sweep.
Set the stop frequency to more than four times as many as the start frequency. And then
select logarithmic sweep.
M
-109 Missing parameter
The number of parameters is less than that required for the command, or the parameter has
not been entered. For example, the command SENS{1-6}:SWE:POIN requires one more
parameter.
Therefore, when a message "SENS1:SWE:POIN" is sent to a correct program message
"SENS1:SWE:POIN 201" this instrument receives the former message as an invalid one
because all parameters have not been entered. Enter command parameters correctly.
N
70 No GPIB system controller
The GPIB system controller is not set properly.
This error occurs when USB/GPIB interface is not connected or the interface setting is
improper, during the measurement for power calibration data or for that in scalar-mixer
calibration.
It also occurs when USB/GPIB interface is not connected or the interface setting is
improper, though the control of the external signal source is enabled.
Ensure the connection of USB/GPIB interface and its setting.
52 No valid memory trace
This error occurs when you have executed either DISP:WIND:TRAC:MEM ON command
to display memory trace, or any other command to enable data caqlculation using memory
trace (CALC:MATH:FUNC command with other than NORM is specified), though no
valid data exists in memory trace.This error is not generated by front key operations.
-120 Numeric data error
An error resulting from the numeric value data (including numeric value data having no
decimal point representation) has occurred. A numeric value error other than Errors -121
through -129 has occurred.
302 Appendix E