R&S FSV3000 Series - Page 1024

Remote Commands
R&S
®
FSVA3000/ R&S
®
FSV3000
1024User Manual 1178.8520.02 ─ 01
CALCulate<n>:MARKer<m>:FUNCtion:NDBDown <Distance>
This command defines the distance of the n dB down markers to the reference marker.
Suffix:
<n>
.
Window
<m> Marker
Parameters:
<Distance> Distance of the temporary markers to the reference marker in
dB.
For a positive offset, the markers T1 and T2 are placed below
the active reference point.
For a negative offset (for example for notch filter measure-
ments), the markers T1 and T2 are placed above the active ref-
erence point.
*RST: 6dB
Default unit: DB
Example:
CALC:MARK:FUNC:NDBD 3dB
Sets the distance to the reference marker to 3 dB.
CALCulate<n>:MARKer<m>:FUNCtion:NDBDown:FREQuency?
This command queries the position of the n dB down markers on the x-axis when mea-
suring in the frequency domain.
To get a valid result, you have to perform a complete measurement with synchroniza-
tion to the end of the measurement before reading out the result. This is only possible
for single sweep mode.
See also INITiate<n>:CONTinuous on page 746.
Suffix:
<n>
.
irrelevant
<m> irrelevant
Return values:
<Frequency> <frequency 1>
absolute frequency of the n dB marker to the left of the reference
marker in Hz
<frequency 2>
absolute frequency of the n dB marker to the right of the refer-
ence marker in Hz.
Analyzing Measurements (Basics)