Performing Peak Searches With Markers - Peak Search Key - R&S ESR Series User Manual

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R&S ESR
The detected signals and their order are different depending on the peak excursion
setting and the peak search method (whether the next lower maximum or the next rela-
tive maximum is searched). The following results are obtained. All tests start with the
marker set to signal 1 by pressing the
●
40 dB peak excursion
Result: With both methods apart from signal 1 no signal is detected, as the signal
level does not decrease by more than 30 dB to either side of any signal.
Next lower maximum
Next Mode abs: signal 1
(no further signal detected)
●
20 dB peak excursion
Result: With both methods apart from signal 1 signal 2 is detected, as the signal
level decreases at least by 29.85 dB to either side of this signal, which is now
greater than the peak excursion.
Next lower maximum
Next Mode abs: signal 2
Next Mode abs: signal 2
(no further signal detected)
●
6 dB peak excursion
Result: With both methods all signals are detected.
Next lower maximum
Next Mode abs: signal 2
Next Mode abs: signal 3
Next Mode abs: signal 4
6.3.3.3 Performing Peak Searches with Markers – PEAK SEARCH Key
The PEAK SEARCH key is used to perform a peak search with the currently active
marker. If no marker is active, marker 1 is activated in normal mode and set as the
peak.
If the selected diagram does not support markers, this key is ignored.
User Manual 1175.7068.02 ─ 12
Spectrum Measurements
Peak softkey.
Next relative maximum
Next Mode <: signal 1
(no further signal detected)
Next Mode >: signal 1
(no further signal detected)
Next relative maximum
Next Mode <: signal 1
(no further signal detected)
Next Mode >: signal 2
Next Mode >: signal 2
(no further signal detected)
Next relative maximum
Next Mode <: signal 3
Next Mode >: signal 1
Next Mode >: signal 2
Next Mode >: signal 4
Analysis
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