Keysight Technologies N774 C Series, Руководство пользователя

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46 Keysight N774xC Series Multiport Power Meter User’s Guide
3 Definition of Terms
Port separation (static)
Specifies the difference between the power P applied to one port and the
measured power D on any other port with no applied power (dark).
Excluding "Noise pp (dark)" (see, Noise pp (dark) on page 44) and "Drift
(dark)" (see, Drift (dark) on page 42).
Powers expressed in dBm, port separation S expressed in dB,
S = P – D
Figure 12 Port separation (static)
Conditions: Applied power level as specified.
Port separation, dynamic
Specifies the difference between step power input P
step
(with positive or
negative slope) applied to one port and the maximum measured power
change D
chng
(positive or negative) on any other port without applied
power (dark). Excluding "Noise pp (dark)" (see, Noise pp (dark) on page 44)
and "Drift (dark)" (see, Drift (dark) on page 42).
Powers expressed in dBm, dynamic port separation SD expressed in dB.
SD = P
step
- D
chng
Conditions: Power step height as specified (1 mW).
Power range
Specifies the range from the smallest input power that causes a significant
change of the measured (displayed) power to the highest power for which
the specifications apply if not differently stated.