Search functions
R&S
®
RTE
445User Manual 1326.1032.02 ─ 20
11 Search functions
Search functions allow you to detect and analyze specific events in the acquired data
quickly and simply. You can search in various waveforms for several events at once.
The search area can be limited by a gate.
The events that can be searched for are basically the same events you can trigger on.
Thus, the search parameters are defined in the same way as the trigger conditions.
The results are displayed in a result box and optionally shown in a zoom window.
11.1 Overview: search definition and results
11.1.1 Search definition
You can define up to 4 different searches and let them run simultaneously. For each
search, you define the criteria, the parameters of each criterion, the gate, and the
result display.
The instrument keeps the settings until the next preset. If you save a user-defined pre-
set, the search settings are included in the preset.
Each search is configured in a separate tab and contains:
●
Search control
If you enable a search and run an acquisition, the search is performed continuously
on the acquired data until acquisition is stopped.
If acquisition is stopped and you enable a search, the data of the last acquisition is
searched.
Enabling the search zoom window disables the search, stops a running acquisition,
and displays the search results of the last acquisition in the zoom window.
●
Source
Waveform that is searched for one or more events. You can search in analog and
digital signals, math or reference waveforms, and tracks. Furthermore, search in
decoded data of serial buses is possible.
●
Search criteria and parameters
Various search criteria are available, depending on the source. Most parameters
known from trigger event definition can also be configured as search conditions.
Unlike triggering, you can configure several event types to be searched for simulta-
neously.
If the source is an FFT spectrum, you can perform a frequency marker search by
using the cursor measurement and defining the peak excursion. See Chap-
ter 8.1.3.3, "Peak search tab", on page 331.
●
Search gate
Searches can be performed on the entire waveform, or only on a defined area
(gate). The gate can be coupled to an existing zoom.
Gating is not available for searches on digital signals and serial buses.
Overview: search definition and results