User manual

Search Functions
R&S
®
RTO
241User Manual 1316.0827.02 ─ 06
The zoom area is indicated in the diagram that displays the source waveform of the
search. It can also be moved manually, as with other zoom areas, thus changing the
settings of the zoom window. Be aware, however, that the zoom window settings are
valid for all search zoom windows, so if you change the settings drastically for one
result, they may not be correct for the next search result you switch to.
9.2.4 Clearing Search Results
You can clear the search results manually or automatically before each new search.
1. Press the SEARCH key to open the "Search" dialog box.
2. Select the tab for the search whose results you want to delete.
3. Select the "Setup" tab.
4. To clear the current search results tap "Clear results".
To have the results cleared automatically before a new search is performed, tap "Auto
clear".
9.2.5 Defining Noise Rejection for Searches
Noise rejection for searches is very similar to noise rejection for triggers.
1. Press the SEARCH key to open the "Search" dialog box.
2. Select the tab for the search you want to configure.
3. Select the "Noise reject" tab.
4. For each waveform for which noise rejection is to be considered:
a) Select the "Enable" option.
b) Select the mode for the noise values: absolute or relative to the vertical scaling
values.
c) Define the absolute or relative hysteresis. If you change one value, the other is
automatically calculated.
If the signal jitters inside this range and crosses the trigger level, no search result is
detected.
9.3 Reference for Search Settings
Search settings include basic configuration of the source and conditions, as well as the
search scope and result presentation. Finally, noise rejection can be configured.
Each search definition is configured on a separate tab. For procdures to perfom a search,
see chapter 9.2, "Configuring and Performing Searches", on page 237.
SCPI commands:
Reference for Search Settings