Keysight Technologies N7700 User Manual page 30

3 Fast Spectral Loss Measurement Application
30
Parameter
Decrement:
Port-Specific:
Range (dBm)
(Reference Measurement):
Keysight N7700 Photonic Application Suite, Fast Spectral Loss Engine, User's Guide
Description
For measuring devices with very high dynamic
ranges, the engine can combine results
obtained from measurements performed at
different power range settings (stitching).
Decrement defines the step by which the
power meter range setting will be changed in
each dynamic range scan. Use the Dynamic
Range Scan setting to define the number of
such scans.
By default, all ports will use this setting. See
Range Override
on page 34"
on how to use different settings for different
power meter ports.
If either Auto range mode or applying manual
modifications in the Port/Reference Manager
Using the Port/Reference
(
Manager
on page 33) lead to power related
settings that differ for some ports, this check
box will be set to indicate that the global
settings won't be applied to some (or even
any) port.
By clicking the check box, you may clear all
port-specific settings at once.
Sets the power range used in reference
sweeps. The value defines the maximum
allowed power. Power values that exceed this
value by more than 3dB will result in clipped
results. in case of low power at the power
meter (e.g. setups with significant loss) the
Range setting should be reduced to utilize
maximum dynamic range. By default, all ports
Range
will use this power range. See
Override
on page 34 for details on how to
use different ranges for different power meter
ports.
If Auto check-box is set, the measurement
engine will choose the appropriate power
range for the reference sweep automatically.
The range will be adjusted individually for
each port. The most sensitive range will be
chosen for which no clipping will occur.
for details