Marker

Several TV commands, e.g. fit or recalibration, do not work on the whole spectrum but on regions only. Such regions can be defined using markers. There are hotkeys for all kind of markers, which are listed in table 4.5 on page

**Table 4.5:** Hotkey definitions for all markers known by TV.
Hotkey	TV-commands	Function
b	tv $>$ fit mark bg-region enter cursor;	Set background-region marker at cursor position
c	tv $>$ cut mark cut enter cursor;	Set cut marker at cursor position
GG	tv $>$ cut marker gate enter cursor;	Defines a gate marker.
h	tv $>$ window mark horizontal enter cursor;	Set a horizontal marker
o	tv $>$ normalization mark enter cursor;	Set normalization marker at cursor position
p	tv $>$ fit mark peak enter cursor;	Set a peak marker at cursor position
r	tv $>$ fit mark region enter cursor;	Set fit-region marker at cursor position
Rr	tv $>$ recalibration marker enter cursor;	Set a recalibration marker at cursor position
-b	tv $>$ fit mark bg-region delete cursor;	Delete background marker closest to the cursor
-cg	tv $>$ cut mark gate delete cursor;	Delete gate marker closest to cursor
-cb	tv $>$ cut mark bg-gate delete cursor;	Delete background-gate marker closest to cursor
-n	tv $>$ normalization mark delete;	Delete the normalization markers
-p	tv $>$ fit mark peak delete cursor;	Delete peak marker closest to cursor
-r	tv $>$ fit mark region delete cursor;	Delete fit-region marker closest to cursor
-A	tv $>$ cut mark cut delete;	Delete all markers. You will
	tv $>$ window hide mark cut;	still see markers which are
	tv $>$ fit mark fit delete;	part of the autonomous fit
	tv $>$ fit delete;
	tv $>$ window hide mark fit;
	tv $>$ label user delete all;
	tv $>$ normalization mark delete;
	tv $>$ recalibration marker delete all;
-B	tv $>$ fit mark bg-region delete all;	Delete all background markers
-C	tv $>$ cut mark cut delete;	Delete cut markers
	tv $>$ window hide mark cut;
-F	tv $>$ fit mark fit delete;	Delete the current fit and
	tv $>$ fit delete;	all its markers
	tv $>$ fit delete activ;
	tv $>$ window hide mark fit;
-P	tv $>$ fit mark peak delete 0 uncalib 8192 uncalib;	Delete all peak markers
-R	tv $>$ recalibration marker delete cursor;	Delete recalibration marker closest to cursor

Markers are set in a window and remain there, even if the spectrum displayed is exchanged by another. So you can operate with one set of markers on many spectra.