Two windows are "linked" in SIGVIEW if changes in one of them influences the changes in the other one. For example, if you calculate an FFT sequence from some part of the signal, that FFT will recalculate and redraw each time you move through the original signal, zoom it in or out, or change signal values...


Each window is by default linked to its parent window. You can disable that link by selecting the “System control/Unlink window from parent” menu option or the  graphic  button in the toolbar. You can establish that link again by selecting the “System control/Link window to parent” menu option or the  graphic  button in the toolbar.


You can view the current state of links between windows in the Control Window. If two windows are linked, they will be connected with a solid line. If they are not linked, the line will be dotted. You can also perform linking/unlinking from the Control Windows context menu.