Using the Optical Spectrum Analyzer
The Amplitude Menus
Note
If both the left and right vertical scales are displayed, the scale/division of the active trace is changed.
To change the display mode between log and linear
1Press the
2Press the Display Mode softkey to toggle between Log and Linear data display.
To change the sensitivity
1Press the
2Press the Sensitivity softkey to toggle between Auto and Manual modes.
3Use the knob, step keys or numeric entry pad to enter the desired value.
This key toggles the sensitivity between automatic and manual. The sensitivity setting indicates the smallest signal amplitude that will be displayed across the current wavelength range. Increasing sensitivity slows the sweep speed. An increase in sensitivity may also require a narrower video bandwidth, which will slow the sweep speed.
Normally, the optical spectrum analyzer selects the greatest sensitivity possi- ble that does not require amplification changes during the sweep. If you man- ually increase the sensitivity level, the sweep pauses to allow this change in gain.
Automatic mode
When in automatic mode, the analyzer selects the greatest sensitivity possible that does not require amplification changes during the sweep.
Manual mode
When sensitivity is increased manually, the sweep pauses to allow this change in gain.