R3131 Spectrum Analyzer Operation Manual
2.2.10 Input Saturation
Initialization
This resets the current settings to the factory defaults.
5. Press SHIFT and CONFIG (PRESET).
The default settings have now been reset.
Setting the measurement conditions
This changes the analyzer settings so that the input signal is displayed more clearly.
6. Press FREQ, 1, 0, 0 and MHz.
A center frequency of 100 MHz is set.
7. Press SPAN, 1 and MHz.
A frequency span of 1 MHz is set.
8. Press LEVEL, ATTAUTO/MNL, 0 and GHz (dB).
The Attenuator level is set to 0 dB.
Under these conditions, the input level at the mixer is -16 dBm, and the measure-
ment is correct without saturation.
ADVANTEST R3131
REF -10.0 dBm
10dB/
Thu 11 Dec 1997
Level
*ATT 0 dB A_wrt B_blnk
Norm Norm
Ref Level
Units ▶
Ref
Offset
ON /OFF
CENTER 100.000 MHz SPAN 1.000 MHz
RBW 10 kHz VBW 10 kHz SWP 50 ms
Figure 2-41 Screen Display without Saturation
2-47
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