Filter
Top Products
4-47
Remote Operation
CALCulate Subsystem Commands
values closest to and more negative than the NDB value. For positive NDB val-
ues, the bandwidth markers will be at values closest to and more positive than
the NDB values. This will typically result in a wider bandwidth measurement.
This is a global setting and controls the interpolation state for all four band-
width markers.
CALCulate:MARKer[1|2|3|4]:FUNCtion:BWIDth|BANDwidth:NDB <numeric_value>
CALCulate:MARKer[1|2|3|4]:FUNCtion:BWIDth|BANDwidth:NDB?
Sets the desired vertical offset from the numbered marker of the bandwidth
markers. The parameter units are as specified in the UNIT:RATio command.
This value can be set or queried anytime. The marker does not have to be on
or in the bandwidth function.
CALCulate:MARKer:FUNCtion:BWIDth|BANDwidth:READout FREQuency|WAVelength|TIME
CALCulate:MARKer:FUNCtion:BWIDth|BANDwidth:READout?
Sets the X-axis readout for frequency or wavelength when the instrument is in
a non-zero span. This setting controls only the bandwidth marker X-axis read-
outs and the X:Left? and X:Right? queries. The delta markers have their own
setting. This setting controls all four bandwidth markers.
Trying to set the readout to TIME when in a non-zero span generates a “Set-
tings conflict” error. Trying to set the readout to FREQuency or WAVelength
when in zero span also generates a “Settings conflict” error. When the instru-
ment is set to zero span, the readout will automatically change to TIME. This
command is primarily useful for non-zero spans.
CALCulate:MARKer[1|2|3|4]:FUNCtion:BWIDth|BANDwidth:RESult?
Returns the difference in the X-axis values between the left and right band-
width markers. The units returned are determined by the
CALCulate:MARKer:FUNCtion:BWIDth|BANDwidth:X:READout state. For
READout of FREQuency, the result is returned in Hertz. For READout of
WAVelength, the result is returned in meters.
If the bandwidth markers cannot find the desired NDB setting relative to the
normal marker, the result returned will be 9.91e37. This value is defined by
the SCPI standard to represent NaN (not a number).
This query generates a “Settings conflict” error if the bandwidth function is
OFF
for the specified marker.
book.book Page 47 Monday, January 31, 2000 10:34 AM