R3131 Spectrum Analyzer Operation Manual
2.3.5 Pass-Fail Judgments
Setting the measurement conditions
This changes the analyzer settings so that the input signal is displayed more clearly.
5. Press FREQ, 3, 0 and MHz.
The center frequency is set to 30 MHz.
6. Press SPAN, 2, 0 and MHz.
A frequency span of 20 MHz is set.
7. Press LEVEL, 0 and GHz (+dBm).
The reference level is set to 0 dBm.
Pass-Fail judgment
8. Press PAS/FAIL.
The level window is displayed, and a Pass-Fail is judged. The marker is moved
to the peak as the sweep repeats, starting from the default search of continuous
peak.
ADVANTEST R3131
REF 0.0 dBm
1003/,_
SPAN
20.00 MHz
Wed 10 Dec 1997
Pass-Fail
ATT 10dB A_wrt B_Plnk
Norm Norm Pass-Foil
iF A I ,L Marker i ON /OFF
30.00 MHZ
;;9;b9 dBm Limit
UP /LOW
--------
CENTER 30.00 MHz
RBW 300 kHz VBW 100 kHz
SPAN 20.00 MHz
ON /OFF
SWP 50 ms
Figure 2-71 Pass-Fail Measurement Screen
Freq -
Window
ON /OFF
Width
SRT /STP
Window
Sweep
ON /0FF
Cont Peak
9. Press LimillIP/LOW, 5 and MHz (-dBm).
The window upper limit setting is turned on and a limit of -5 dBm is set. To turn
on the window lower limit, press this key again.
2-75
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