Peak hold is a signal which stores maximum Y values for each X value from all past changes in
the origin signal. Min hold is a similar function which stores minimum Y values.
Each time original signal changes, peak hold window will compare its new values with the old
ones, and take the bigger ones. For example, you can try to create Peak-hold window of some
existing spectrum window. When you calculate Peak-hold from it, it will contain exactly the same
data as the spectrum in that moment. Now, start your signal analysis system and make spectrum
change its values. Peak hold will store maximum values for all frequencies from spectrum. You
can apply this option to any kind of signal.
If you want to reset all peak hold values and start from the beginning, choose Reset data from his
context menu or press F3 button.
If you want simply to stop or start peak hold process, choose unlink or link option from the main
menu or toolbar.