Rohde & Schwarz FSH4, Руководство по эксплуатации

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R&S FSH Spectrum Analyzer Mode
Performing Spectrum Measurements
Operating Manual 1309.6275.12 - 14 68
Screen layout for the spectrogram
1 Result display
2 Marker and time line information
3 Spectrum result display (optional)
4 Marker/ delta marker (vertical lines)
5 Spectrogram
6 Time lines T1 and T2 (horizontal lines)
7 Scroll direction
8 Spectrogram softkey menu
By default, the spectrogram result display consists of two windows. The upper window
shows the measured spectrum as a trace line. The lower window shows the
measurement results in a spectrogram. The chronological information in the
spectrogram is restricted by the internal memory of the R&S FSH. The R&S FSH
stores 1024 frames or spectrums that have been measured in its memory. As the
height of the display is smaller, some of the data becomes invisible after a time.
2.1.8.1 Controlling the Spectrogram Update
The spectrogram starts running as soon as you enter the spectrogram mode, if you are
in continuous sweep mode.
If you are in single sweep mode, the R&S FSH does not add a line to the spectrogram
until you initiate the next single sweep.
You can stop the update of the spectrogram in continuous sweep mode.
M Press the MEAS key.
M Press the "Hold" softkey.
Note that in continuous sweep mode the measurement in the spectrum result
display does not stop. The trace in the upper window still updates continuously.
Only the spectrogram view stops.
M Press the "Hold" softkey again.
The R&S FSH resumes updating the spectrogram.