Agilent Technologies Signal Analyzer N9030a - Manual (Page 774)

6 RLC Swept SA Measurement Front-Panel & SCPI Reference
Marker Function
and Average Type are currently in Auto. If set to “As Set”, then the current value for RBW and
Average Type are used (which could also be “Auto”).
Here are the details of the two modes:
If BW & Avg Type is set to Autocoupled, Measure at Marker behaves as follows:
1. The EMC Std changes to CISPR if any of the CISPR detectors (EMI Avg, RMS Avg, QPD) becomes
selected; for all other detectors, the value of EMC Std that existed before Measure at Marker is
used.
2. RBW autocouples throughout Measure at Marker, even if RBW is set to Manual. The autocouple
rules are based on whatever the instantaneous setting of EMC Std, Span, and Center Freq are.
If BW & Avg Type is set to As Set, Measure at Marker behaves as follows:
1. The EMC Std never changes; so if it is set to None it stays at None throughout, even if one of the
CISPR detectors is selected.
2. If RBW is set to Auto, then RBW autocouples throughout Measure at Marker. The autocouple
rules are based on whatever the setting of EMC Std, Span, and Center Freq are.
3. If RBW is set to Manual, the RBW never changes at all throughout Measure at Marker, it stays at
the value to which it was set before Measure at Marker began.
The analyzer returns to its pre-Measure at Marker span and settings after executing a Measure at
Marker function, including Bandwidth, Avg Type, and EMC Std.
It is important to note that, when RBW is coupled to Frequency, as it is when EMC Std is anything
but “None”, for all EMI measurements, the frequency it is coupled to for Measure at Marker is the
MARKER frequency, not the Center Frequency.
Key Path Marker Function, Measure at Marker
Remote Command :CALCulate:MAMarker:COUPling ON|OFF|1|0
:CALCulate:MAMarker:COUPling?
Example :CALC:MAM:COUP ON
Preset Autocoupled
State Saved Saved in instrument state
Readback Text Autocoupled|As Set
Initial S/W Revision A.02.00
BW & Avg Type
This key controls the type of bandwidth and average type coupling used in Measure at Marker.
774 Remote Language Compatibility Measurement Application Reference