Exfo FTB -5240S/5240BP Optical Spectrum Analyzer Manual de usuario Pagina 200

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Setting Up the Instrument in Spectral Transmittance Mode
194 FTB-5240S/S-P/BP
Setting Up Spectral Transmittance Analysis Parameters
The percentage value entered in Edit percentage will be
converted to a corresponding value in dB.
Output wavelength offset (nm): indicates the offset value applied
on the output wavelength. This does not replace a calibration
performed at EXFO, but it can help you temporarily sharpen the
specifications if you have determined that, for example, your
modules are used beyond the normal allowed use. Entering a
value in THz is not possible. When an offset is applied, it is
indicated at the bottom of the graph ( )
Output power offset (dB): indicates the offset value applied on the
output power. This does not replace a calibration performed at
EXFO, but it can help you achieve the specifications if you have
determined that, for example, your modules are used beyond the
normal allowed use. When an offset is applied, it is indicated at the
bottom of the graph (P ).
To edit the power offset value as a tap percentage, press the Edit %
button.
The percentage value entered in Edit percentage will be
converted to a corresponding value in dB.
4. Press OK to save the changes and close the window, or press Cancel to
exit without saving.
Press Restore Defaults to remove all the changes and apply the default
values.
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