R&S FSW Series - Page 525

Common Analysis and Display Functions
R&S
®
FSW
525User Manual 1173.9411.02 ─ 43
Search Limits.............................................................................................................. 526
└ Search Limits (Left / Right)........................................................................... 526
└ Search Threshold..........................................................................................526
└ Use Zoom Limits...........................................................................................526
└ Deactivating All Search Limits...................................................................... 526
Search Mode for Next Peak
Selects the search mode for the next peak search.
"Left"
Determines the next maximum/minimum to the left of the current
peak.
"Absolute"
Determines the next maximum/minimum to either side of the current
peak.
"Right"
Determines the next maximum/minimum to the right of the current
peak.
Remote command:
Chapter 14.8.3.4, "Positioning the Marker", on page 1162
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:
CALCulate<n>:MARKer<m>:LOEXclude on page 1158
Peak Excursion
Defines the minimum level value by which a signal must rise or fall so that it is identi-
fied 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 analog demodulation, the unit and value range depend on the selected result dis-
play type.
For more information, see Chapter 9.3.4.8, "Marker Peak List", on page 548.
Remote command:
CALCulate<n>:MARKer<m>:PEXCursion on page 1159
Auto Max Peak Search / Auto 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.
Marker Usage