R&S ESR Series, User Manual

Page: 415 / 1126

Spectrum Measurements
R&S
®
ESR
412 User Manual 1175.7068.02 ─ 12
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"Next Min" on page 205
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"Next Mode" on page 205
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"Search Limits" on page 206
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"Peak Excursion" on page 207
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Spectrogram: Chapter 5.4.2.3, "Markers in Spectrograms" , on page 207
Functions to position markers exclusive in Spectrum mode
Center =Mkr Freq (span > 0) .......................................................................................412
Ref Lvl =Mkr Lvl .......................................................................................................... 412
Auto Max Peak/Auto Min Peak ................................................................................... 412
Exclude LO ..................................................................................................................412
Center =Mkr Freq (span > 0)
Sets the center frequency to the current marker or delta marker frequency. A signal
can thus be set to as center frequency, for example to examine it in detail with a
smaller span.
Remote command:
CALCulate<n>:MARKer<m>:FUNCtion:CENTer
on page 688
Ref Lvl =Mkr Lvl
Sets the reference level to the current marker level.
Remote command:
CALCulate<n>:MARKer<m>:FUNCtion:REFerence
on page 862
Auto Max Peak/Auto Min Peak
Adds an automatic peak search action for marker 1 at the end of each particular
sweep. This function may be used during adjustments of a device under test to keep
track of the current peak marker position and level.
The current marker search limit settings ( Left Limit , Right Limit , Threshold softkeys) are
taken into account.
Remote command:
CALCulate<n>:MARKer<m>:MAXimum:AUTO
on page 863
CALCulate<n>:MARKer<m>:MINimum:AUTO
on page 863
Exclude LO
Switches the frequency range limit for the marker search functions on or off.
"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 863
Analysis