Keysight N9041B - Page 549

3 Spectrum Analyzer Mode
3.3 Channel Power Measurement
Backwards Compatibility Queries
Query Return Value
:FETCh:CHPower:CHPower?
:MEASure:CHPower:CHPower?
:READ:CHPower:CHPower?
Returns the Channel Power (dBm)
:FETCh:CHPower:DENSity?
:MEASure:CHPower:DENSity?
:READ:CHPower:DENSity?
Returns the Power Spectral Density (dBm/Hz)
The results returned by the queries depend on the currently-selected Mode and the
value of n (where required). The sections below provide mode-specific details for
each Mode.
SA Mode Measurement Results
n Results Returned
1 or not
specified
Returns scalar results:
1 Channel Power A floating-point number representing the total channel power in the
specified integration bandwidth
2 PSD (Power
Spectral
Density)
The power in the specified unit bandwidth. The unit bandwidth is
selected by "PSD Unit" on page 642; either dBm/Hz or dBm/MHz
2 Returns floating point numbers that are the captured trace data of the power (in dBm/resolution BW) of the
signal for Trace 1. The frequency span of the captured trace data is specified by "Span" on page 627
3 n/a
4 n/a
5 Returns floating point numbers that are the captured trace data of the power (in dBm/resolution BW) of the
signal for Trace 2. The frequency span of the captured trace data is specified by Span
6 Returns floating point numbers that are the captured trace data of the power (in dBm/resolution BW) of the
signal for Trace 3. The frequency span of the captured trace data is specified by Span
7 Returns Marker Table data as a series of comma separated values in the following form:
<Marker Number>,<Marker Trace>,<X>,<Y>,<Reserved>,<Reserved>
Only markers that are enabled are included. <Reserved> are returned as NaN (“Not a Number”, 9.91e+37).
The data is returned in the current sort order as displayed in the Marker Table
MSR Mode Measurement Results
n Results Returned
1 or not
specified
Returns scalar results:
Spectrum Analyzer Mode User's &Programmer's Reference 549