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1025
Marker Function
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 test set 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.
Center Presel On/Off
This key controls the automatic centering of the preselector for the Measure at Marker function.
When Center Presel is On, the first step in performing the Measure at Marker function is to perform a
Presel Center. This is not performed if the microwave preselector is off, or the selected marker’s
frequency is below Band 1. If the function is not performed, no message is generated.
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
Key Path
Marker Function, Measure at Marker
Remote Command :CALCulate:MAMarker:PCENter ON|OFF|1|0
:CALCulate:MAMarker:PCENter?
Example :CALC:MAM:PCEN ON
Dependencies Blank in models that do not include a preselector, such as option 503. If the
SCPI is sent in these instruments, it is accepted without error, and the query
always returns 0.
Preset On