Common Analysis and Display Functions
R&S
®
FSW
500
User Manual 1173.9411.02 ─ 19
Exclude LO
If activated, restricts the frequency range for the marker search functions.
"ON"
The minimum frequency included in the peak search range is ≥ 5 ×
resolution bandwidth (RBW).
Due to the interference by the first local oscillator to the first inter-
mediate frequency at the input mixer, the LO is represented as a sig-
nal at 0 Hz. To avoid the peak marker jumping to the LO signal at 0
Hz, this frequency is excluded from the peak search.
"OFF"
No restriction to the search range. The frequency 0 Hz is included in
the marker search functions.
Remote command:
Peak Excursion
Defines the minimum level value by which a signal must rise or fall so that it will be
identified as a maximum or a minimum by the search functions.
Entries from 0
dB to 80
dB are allowed; the resolution is 0.1
dB. The default setting for
the peak excursion is 6
dB.
For more information see
chapter 7.4.1.4, "Searching for Signal Peaks"
Remote command:
Auto Max / Min Peak Search
If activated, a maximum or minimum peak search is performed automatically for
marker 1 after each sweep.
For spectrogram displays, define which frame the peak is to be searched in.
For EMI measurements, these functions are not available; use
instead (see
chapter 5.13.4.2, "EMI Final Measurement Configuration"
Remote command:
Search Limits
The search results can be restricted by limiting the search area or adding search con-
ditions.
Search Limits (Left / Right) ← Search Limits
If activated, limit lines are defined and displayed for the search. Only results within the
limited search range are considered.
For details on limit lines for searches see
Remote command:
Marker Usage
