Exfo FTB -5240S/5240BP Optical Spectrum Analyzer for FT Manual de usuario descargar pdf (Pagina 137)

100

101

Setting Up the Instrument in Drift Mode

Optical Spectrum Analyzer 129

Setting Up Drift Analysis Parameters

³ Peak detection level (dBm): indicates the minimum power level

from where the peak can be considered as a signal.

³ RBW for OSNR (nm): indicates the resolution bandwidth for the

selected OSNR value. The resolution bandwidth of an OSA

determines its ability to deal with close optical channel spacing. It

is measured as the width of the response curve at half peak power

(i.e., 3 dB down) of the instrument to a monochromatic test signal.

The instrument’s RBW value is written below the graph on the right

(below wavelength offset).

³ Wavelength offset (nm): indicates the offset value applied on the

wavelength. You can use an offset to adjust your unit. 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.

Entering a value in THz is not possible. The wavelength offset

appears below the graph, on the right, next to the arrow.

1 2 ... 132 133 134 135 136 137 138 139 140 141 142 ... 536 537

Comentarios a estos manuales

Sin comentarios

Exfo FTB -5240S/5240BP Optical Spectrum Analyzer for FT Manual de usuario Pagina 137

Comentarios a estos manuales

Relacionado con productos y manuales para Instrumentos de medición Exfo FTB -5240S/5240BP Optical Spectrum Analyzer for FT