Agilent Technologies E1401-90493 Manuel d'utilisateur Page 122

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122 Chapter 2
Performance Verification Tests
15. Reference Level Accuracy: Agilent E4402B, E4403B, E4404B, E4405B, E4407B, and
E4408B.
AMPLITUDE, Scale Type (Lin)
AMPLITUDE, More, Y Axis Units (or Amptd Units), dBm
AMPLITUDE,
–20 dBm
SPAN, 50 kHz
BW/Avg, 3 kHz
Video BW, 30 Hz
Sweep, Sweep Cont
Marker, Off
4. Set the 1 dB step attenuator to place the signal peak 1 to 3 divisions
below the reference level.
5. On the analyzer, press the following keys:
Single
Peak Search
(or Search)
Marker, Delta
6. Set the 10 dB step attenuator and analyzer reference level according
to Column 1 and Column 4 of Table 2-26. At each setting, do the
following:
a. Press
Single on the analyzer.
b. Press
Peak Search (or Search).
c. Record the marker delta amplitude reading in Column 5 of
Table 2-26.
d. Add the Actual Attenuator Step to the Analyzer Marker Delta
Amplitude and enter the result as the Test Record entry in the
performance test record.
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