Keysight x-series User Reference Guide

10 Monitor Spectrum Measurement
Meas Setup
Example CALC:LLIN:COMM "European Emissions"
Preset “” (null String), not affected by Mode Preset, preset by Restore Mode Defaults.
State Saved Saved in instrument state
Backwards
Compatibility SCPI
:CALCulate[1]|2:LIMit[1]|2|...|6:COMMent
Backwards Compatibility
SCPI Notes
This command above is included for ESU compatibility. The suffix [1]|2 is irrelevant to the
measurement, they are added solely for remote language compatibility.
Initial S/W Revision A.13.00
Margin
Selects a margin for this limit, which will cause a trace to Fail Margin when the trace is between the limit
line and the margin line. Portions of the traces that pass the limit but fail the margin will be displayed in an
amber color. .
A margin is always specified in dB relative to a limit. Since there is only an upper limit in the Monitor
Spectrum measurement, the margin is always negative. If a value is entered with the incorrect sign, the
system will automatically take the negative of the entered value.
When the Margin is selected, it may be turned off by pressing the Margin key until Off is underlined. This
may also be done by performing a preset. Margin is the default active function whenever the margin is on,
and it is not the active function whenever the margin is off.
The margin lines are displayed in the same color, but paler, as limit lines. If the limited trace is blanked
then the limit line and the margin line will be blanked as well.
Key Path
Meas Setup, Limits
Remote Command
:CALCulate:LLINe[1]|2|...|6:MARGin <rel_ampl>
:CALCulate:LLINe[1]|2|...|6:MARGin?
:CALCulate:LLINe[1]|2|...|6:MARGin:STATe ON|OFF|1|0
:CALCulate:LLINe[1]|2|...|6:MARGin:STATe?
Example CALC:LLIN6:MARG –4dB Set Limit line 6’s margin to –4 dB.
CALC:LLIN2:MARG:STAT OFF ! Turns off the margin for limit line 2 and removes any tests associated
with that margin line.
Notes The queries “Limit Line Fail?” :CALCulate:LLINe[1]|2|3|4|5|6:FAIL? will return 1 if the margin fails.
Preset Not affected by Mode Preset, set to 0 dB for all Limits by Restore Mode Defaults.
State Saved Saved in instrument state
Min –40 dB
Max 0 dB
Default Unit dB
Initial S/W Revision A.13.00
796 EMI Receiver Mode Reference

Keysight x-series Specifications

General

Analysis Bandwidth	Up to 1 GHz (depending on model)
Real-Time Bandwidth	Up to 1 GHz (depending on model)
Form Factor	Benchtop
Connectivity	LAN, USB, GPIB
Resolution Bandwidth	1 Hz to 10 MHz (depending on model)