Rohde & Schwarz FSW-K40, Руководство пользователя

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Welcome to the Phase Noise Measurement Application
R&S
®
FSW-K40
11 User Manual 1173.9286.02 ─ 15
Measurement status
The application shows the progress of the measurement in a series of green bars at
the bottom of the diagram area. For each half decade in the measurement, the applica-
tions adds a bar that spans the frequency range of the corresponding half decade.
The bar has several features.
●
The numbers within the green bar show the progress of the measurement(s) in the
half decade the application currently works on.
The first number is the current, the second number the total count of measure-
ments for that half decade. The last number is the time the measurement requires.
●
A double-click on the bar opens an input field to define the number of averages for
that half decade.
●
A right-click on the bar opens a context menu.
The context menu provides easy access to various parameters (resolution band-
width, sweep mode etc.) that define the measurement characteristics for a half
decade. The values in parentheses are the currently selected values. For more
information on the available parameters see
"Half Decades Configuration Table"
on page 46.
Channel bar information
The channel bar contains information about the current measurement setup, progress
and results.
Figure 2-2: Channel bar of the phase noise application
Frequency Frequency the R&S FSW has been tuned to.
The frontend frequency is the expected frequency of the carrier. When fre-
quency tracking or verification is on, the application might adjust the frontend
frequency.
Ref Level & Att Reference level (first value) and attenuation (second value) of the R&S FSW.
When level tracking or verification is on, the application might adjust the fron-
tend level.
Measurement Complete phase noise measurement range. For more information see Chap-
ter 4.3, "Measurement Range" , on page 24.
Measured Level DUT level that has been actually measured.
The measured level might differ from the frontend level, e.g. if you are using
level verification.
Initial Delta Difference between the nominal level and the first level that has been mea-
sured.
Understanding the Display Information