Calculate Subsystem; Ndbpoints; Ndbresults - HP ESA-E Series Programmer's Manual

Language Reference

CALCulate Subsystem

CALCulate Subsystem
This subsystem is used to perform post-acquisition data processing. In
effect, the collection of new data triggers the CALCulate subsystem. In
this instrument, the primary functions in this subsystem are markers
and limits.

NdBpoints

:CALCulate:BWIDth|BANDwidth:NDB <rel_ampl>
:CALCulate:BWIDth|BANDwidth:NDB?
Selects the power level, below the peak of the signal, at which the
signal bandwidth will be measured by the markers.
:CALCulate:BWIDth|BANDwidth[:STATe] must be ON.
To query the result of NdBpoints, use the command
NOTE
:CALCulate:BWIDth|BANDwidth:RESult?
Factory Preset
and *RST:
Range:
Default Unit:
Remarks:
Front Panel
Access:

NdBresults

:CALCulate:BWIDth|BANDwidth:RESult?
Returns the measured bandwidth at the power level defined by
:CALCulate:BWIDth:NDB. –100 is returned if
:CALCulate:BWIDth|BANDwidth[:STATe] is off, or when a result is
not available.
Range:
Default Unit:
Remarks:
Front Panel
Access:
5-10
–3 dB
–80 dB to –1 dB
dB
Refer to :CALCulate:BWIDth|BANDwidth[:STATe] for
an explanation of this marker function.
Search, N dB Points
Real value less than the current frequency span
Hz
Refer to CALCulate:BWIDth|BANDwidth[:STATe] for an
explanation of this marker function.
Search, N dB Points
Chapter 5