Exfo FTB -5240S/5240BP Optical Spectrum Analyzer for FT Manuel d'utilisateur télécharger pdf (Page 213)

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101

Setting Up the Instrument in Spectral Transmittance Mode

Optical Spectrum Analyzer 205

Setting Up Acquisition Parameters

Before performing your test, you must set the acquisition type and

parameters.

There are three types of acquisitions in Spectral Transmittance mode:

Single, Averaging and Real-Time.

³ Single: Spectral measurement is performed once. The results are

displayed according to this measurement. In single mode, noise

measurement can be performed In-Band if the option is available.

³ Averaging: Spectral measurements are performed based on the

number of scans that you have entered for this parameter. The trace

will be displayed after each acquisition and averaged with the previous

traces.

³ Real-Time: In Real-Time acquisition, spectral measurements are

performed continuously until you press Stop. No averaging is done for

spectral measurements. The graph and results are refreshed after each

acquisition.

Before performing measurements on an optical spectrum, you must select

the wavelength/frequency range to use. You can perform the scan on the

full range, on spectral bands, or select a custom range.

Note: The shorter the wavelength or frequency range, the faster the acquisition.

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Exfo FTB -5240S/5240BP Optical Spectrum Analyzer for FT Manuel d'utilisateur Page 213

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