1-9
IM AQ6376-01EN
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App
Index
1.3 Waveform Display
Marker Functions <<See section 5.9 for the operating procedure>>
Marker functions can be used to easily measure wavelength differences and level
differences, and to search for peak wavelengths, peak levels, and spectrum widths.
There are markers and line markers.
Markers
A total of 1025 markers (one moving marker and 1024 fixed markers) are provided.
Moving markers can be moved to an arbitrary wavelength using the rotary knob, arrow
keys, or numeric key pad. You can also drag the markers with the mouse. Moving
markers can be moved over a waveform to display the marker values (wavelength
and level value) in the data area. If a moving marker is fixed in an arbitrary position, it
changes to a fixed marker.
Fixed markers are markers fixed to a number on which the moving marker was set. Fixed
markers are assigned marker numbers in order starting from 001. You can enter an
arbitrary number using the rotary knob, arrow keys, or numeric key pad. A number up to
1024 can be set. When multiple fixed markers are set, it is possible to display wavelength
differences and level differences between a given marker and adjacent markers.
Line Markers
There are four line markers––two wavelength line markers and two level line markers.
Wavelength line markers show wavelength and wavelength difference, and level line
markers show level values and level difference. Also, you can use line markers to specify
a sweep or analysis range.
Advanced Markers
There are four advanced markers.
There are three types of advanced markers: moving marker, power density marker, and
integrated power marker. Advanced markers can be placed on any of the waveforms
from trace A to G.
Each marker can be moved to an arbitrary wavelength using the rotary knob, arrow keys,
or numeric keypad.
You can also drag the markers with the mouse.
Moreover, you can use the search function to move the marker to the peak of the target
waveform.
Advanced markers measure the following values.
• Moving markers
Moving markers move along the waveform and show marker values (wavelength and
level) in the data area.
They are the same as the moving markers described above, except they do not have
the fixed marker function.
• Power density markers
Power density markers move along the waveform and show marker values (power
values per normalization bandwidth) in the data area.
• Integrated power markers
Integrated power markers move along the waveform and show marker values
(integrated power value over the specified wavelength range) in the data area.