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Function Reference
Preset
Preset
Resets the instrument to a known preset state. Selecting preset aborts any
current operations and clears the GPIB output queue. Preset leaves some set-
tings in place, for example, the title on the display.
Table 3-7. Default values
Function
Preset
Value
Function
Preset
Value
Start wavelength 600 nm Stop wavelength 1700 nm
Wavelength offset 0 Wavelength step size Auto
Resolution bandwidth Auto Resolution bandwidth to span
ratio
0.01
Wavelength units nm Medium Vacuum
Wavelength limit On Grating order Auto
Power reference level 0 dBm Power reference level
position
9
Power scale 10 dB/div Ratio reference level 0 dB
Ratio reference level position 5 Ratio scale 10 dB/div
Amplitude units Auto
Ratio units
a
Auto
Amplitude correction Off Source mode Off
Sensitivity Auto Video bandwidth Auto
Auto range On Trans-Z lock Off
Repetitive sweep On Sweep time Auto
Auto chop Off Gated sweep Off
Trigger mode Normal ADC trigger delay
10
µs
ADC sync out Off Sweep limit Off
Trace length 1001 Current source pulse width
100 µs
Current source duty cycle 100% Auto zero On
User wavelength calibration Enabled User power calibration Enabled
Graticule On Annotation On
Current marker MKR 1 Normal marker interpolation Off
Bandwidth marker interpolation On Normal marker units nm
Bandwidth marker units nm Peak search threshold –90 dBm
Threshold enable Off Peak search excursion 3 dB
Pit search excursion 3 dB Peak search on end-of-sweep Off
Marker search limit Off Line markers Off
Marker noise normalization
bandwidth
1 nm OSNR Mode auto
OSNR Offset 0.4 nm