Rohde & Schwarz FSH4, Руководство по эксплуатации

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R&S FSH Spectrum Analyzer Mode
Configuring Spectrum Measurements
Operating Manual 1309.6275.12 - 14 92
Averaging reduces the effects of noise, but has no effects on sine signals. Using
the trace averaging therefore is a good way to detect signals in the vicinity of
noise.
You can apply all detectors in this mode.
C Max Hold
The trace shows the maximum power levels that have been measured at each
pixel.
To overwrite a max hold trace, change a parameter in a way that the results can
not be compared any more, e.g. the span. Using the max hold trace mode is a
good way to detect intermittent signals or the maximum values of fluctuating
signals, for example.
Using the max hold trace mode automatically activates the max peak detector.
C Min Hold
The trace shows the minimum power levels that have been measured at each
pixel.
To overwrite a min hold trace, change a parameter in a way that the results can not
be compared any more, e.g. the span. Using the min hold trace mode is a good
way to highlight signals within noise or suppress intermittent signals.
Using the min hold trace mode automatically activates the min peak detector.
C View
The view trace mode freezes the current trace and aborts the measurement.
Using the view trace mode is a good way to evaluate the trace, for example with
markers.
M Press the TRACE key.
M Press the "Trace Mode" softkey.
The R&S FSH opens a submenu to select the trace mode.
M Select the trace mode you want to work with.
If you have selected the average trace mode ("Average: 10" menu item), the
R&S FSH opens an input field to set the number of sweeps the R&S FSH includes
in the averaging.
M Enter the number of sweeps to include in the averaging.
In continuous sweep mode, the R&S FSH now calculates the moving average over
the number of sweeps you have specified. In single sweep mode, it stops the
measurement after finishing the sweeps and averages the traces.