User Manual

The Spectrum Application (RF Measurements)
R&S
®
FPL1000
356User Manual 1178.3370.02 ─ 09
"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 11.8.8.4, "Positioning the Marker", on page 851
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 847
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 Modulation Analysis, the unit and value range depend on the selected
result display type.
For more information, see Chapter 7.9.4.8, "Marker Peak List", on page 379.
Remote command:
CALCulate<n>:MARKer<m>:PEXCursion on page 847
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.
Remote command:
CALCulate<n>:MARKer<m>:MAXimum:AUTO on page 851
CALCulate<n>:MARKer<m>:MINimum:AUTO on page 853
Search Limits
The search results can be restricted by limiting the search area or adding search con-
ditions.
Marker Usage