GUI reference
R&S
®
ZNA
406User Manual 1178.6462.02 ─ 20
Is the Current Grid Harmonic?
The area at the top of the "Low Pass Settings" dialog indicates whether the current fre-
quency grid is harmonic.
Remote command: 
[SENSe<Ch>:]HARMonic?
Set Harmonic Grid and Keep
The three buttons provide alternative algorithms for calculation of a harmonic grid,
based on the current sweep points.
●
Keep "Stop Frequency and Number of Points" calculates a harmonic grid based on
the current "Stop Frequency" (see "Start Frequency / Stop Frequency / Center Fre-
quency / Span Frequency" on page 474) and the current number of sweep points
(see "Number of Points" on page 489). This algorithm can increase the frequency
gap (i.e. the Freq Step Size) .
●
Keep "Frequency Gap and Number of Points" calculates a harmonic grid based on
the current "Stop Frequency" and the current frequency gap (i.e. the "Freq Step
Size").
●
Keep "Stop Frequency and Approximate Frequency Gap" calculates a harmonic
grid based on the current "Stop Frequency", increasing the "Number of Points" in
such a way that the frequency gap (i.e. the "Freq Step Size") remains approxi-
mately the same. This algorithm can increase the sweep time, due to the additional
sweep points introduced.
The three grids can be calculated repeatedly in any order; the analyzer always starts
from the original set of sweep points.
For more information, refer to Chapter 4.7.2.4, "Harmonic grid", on page 223.
Remote command: 
CALCulate<Chn>:TRANsform:TIME:LPASs
Traces softtool