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116 Chapter 2
Performance Verification Tests
14. Reference Level Accuracy: Agilent E4401B and E4411B
a. Press Single on the analyzer.
b. Press
Peak Search (or Search).
c. Record the marker delta amplitude reading in Column 5 of
Table 2-23.
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.
Post-test Instrument Restoration
1. Remove the RF cable from the analyzer input connector.
2. To restore the default settings on the analyzer, press
Preset, System,
Alignments, Auto Align, All
.
Table 2-23 Linear Mode, Digital Bandwidths, Option 1DR
Column 1 Column 2 Column 3 Column 4 Column 5 Column 6
10 dB
Attenuator
Nominal
Attenuation
(dB)
10 dB
Attenuator
Actual
Attenuation
(dB)
Actual
Attenuator
Step
(dB)
Analyzer
Reference
Level
a
(dBm) (dBmV)
Analyzer
Marker
Delta
Amplitude
(dB)
Test
Record
Entry
20 0 (Ref)
−25 28.75 0 (Ref) (Ref)
10
−15 38.75 22)
0
−5 48.75 23)
30
−35 18.75 24)
40
−45 8.75 25)
50
−55 −1.25 26)
60
−65 −11.25 27)
70
−75 −21.25 28)
a. Use the dBm column values for analyzers with a 50 Ω input and the dBmV col-
umn for analyzers with a 75
Ω input.