4-5
IM AQ6376-01EN
Mesurement
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App
Index
Explanation
Wavelength Display Mode
• Displays the measured waveform with the wavelength on the X axis.
• The measurement scale and display scale are set based on the wavelength.
•
The X axis unit for marker values and analysis function results is wavelength.
Frequency Display Mode
• Displays the measured waveform with the frequency on the X axis.
• The measurement scale and display scale are set based on the frequency.
• The X axis unit for marker values and analysis function results is frequency.
Wavenumber Display Mode
• Displays the measured waveform with the wavenumber on the X axis.
• The measurement scale and display scale are set based on the wavenumber.
• The X axis unit for marker values and analysis function results is wavenumber.
Display Units of the X-Axis and Marker Values
The display unit for the marker value (wavelength, frequency or wavenumber) can be set
independently of the waveform display’s horizontal axis units (wavelength, frequency,
wavenumber) that were specified using the HORIZON SCALE soft key under SETUP.
(Default: nm)
(This key can be used to enter settings such as frequency display mode on the X axis
and wavelength display mode for the marker value.)
Also, the MARKER UNIT nm THz soft key’s setting changes in conjunction with the
setting of the HORIZON SCALE soft key. However, changing the MARKER UNIT nm THz
soft key’s setting does not change the setting for the HORIZON SCALE nm/THz soft key.
Note
The MARKER UNIT soft key’s setting changes in conjunction with the setting of the HORZN
SCALE soft key. However, changing the MARKER UNIT soft key’s setting does not change the
setting for the HORIZON SCALE nm/THz soft key under SETUP.
LOG SCALE **.*dB/D
This key switches the vertical axis to LOG display and sets the level scale.
The setting range is 0.1 to 10.0 dB/DIV. Settings can be adjusted in steps of 0.1 dB.
If you press the COARSE key you can change the numerical value in 1-2-5 steps, for
example: 1dB/DIV -> 2dB/DIV -> 5dB/DIV.
When the setting is changed, the displayed waveform is redrawn according to the
changed scale.
If the value is set to a scale larger than 5 dB/DIV in range fixing mode (SENS:NORMAL/
HOLD) or pulse light measurement mode, the waveform will not be correctly measured in
the vertical direction so a warning is displayed.
4.2 Horizontal/Vertical Axis Settings