Markers can be moved by left-clicking them and holding the left mousebutton while moving the marker. If the current graph view contains asingle trace (DOP, power), the marker will be an X/Y-marker, i.e. it willstick to the trace and display the X and Y values for the marked pointon the trace. If the graph contains several traces (Stokes parameters),the marker will be a Vertical Marker, i.e. it will just mark and displayan X value. When switching between the graph view tabs, the markerswill stay at their chosen X positions and change their vertical behavior,depending upon the type of data displayed. The marker behavior can betoggled manually from the marker context menu, which is brought up byright-clicking the marker. From this menu, the marker can be deletedas well. Markers will be erased if a new measurement is performed.Before working with markers, it is therefore recommended to stop themeasurement by setting the acquisition mode to Hold in the External PCmode or by pressing the Stop button from the Sampling Mode verticalbutton set in the Integrated PC Mode.The buttons on the left side of the window have the following functions:• Toggle X-axis unit – Toggles between the display of the appro-priate unit (e.g. ms, nm) and the display of an increasing counter(number datapoints).• Linear/dB power plot – Toggles between a logarithmic (dB) anda linear power scale.• X-Unit – Selects the desired unit modifier (e.g. pm, nm etc.)• Y-Unit – Selects the desired unit modifier (e.g. nW, mW etc.)• Graph Properties – Opens the Graph Properties dialog box.• Restore Last Scaling - If zoomed into a plot, this restores theprevious scaling.These buttons may not always be shown. You can toggle this Graph Barfrom the View.6.1.10 Data LoggingThe adaptif PHOTONICS instruments support data logging, i.e. you candefine an interval at which measurements will be stored. In between theinstrument continues to perform measurements and refresh the display.Before starting a logging session you should set appropriate parameterslike sampling rate, number of samples per measurement (Post-Trig. Sam-ples) and gain.A1XXX/A2XXX/A3XXX User Guide 39
