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120 Chapter 2
Performance Verification Tests
15. Reference Level Accuracy: Agilent E4402B, E4403B, E4404B, E4405B, E4407B, and
E4408B.
performance test record.
The following is an example for –30 dBm reference level:
Log Scale, Digital Bandwidths, Option 1DR
NOTE If the analyzer is an E4404B/E4405B/E4407B that is not equipped with
Option 1DR (narrow resolution bandwidths) or an E4403B/E4408B
(with or without Option 1DR), skip to the next section (Linear Scale,
Analog Bandwidths).
7. On the analyzer, press the following keys:
SPAN, 150 Hz
BW/Avg, 10 Hz
Video BW, 1 Hz
8. Set the 1 dB step attenuator to set the signal peak 1 to 3 divisions
below the reference level.
Analyzer marker ∆ amplitude 10.17–() dB=
Actual Attenuator Step 30 dB()10.07–() dB=
Test Record Entry 10.17–() dB 10.07–()– dB 0.10–() dB==
Table 2-24 Log Mode, Analog Bandwidths Worksheet
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
(dBm)
Analyzer
Marker
Delta
Amplitude
(dB)
Test
Record
Entry
20 0 (Ref)
−20 0 (Ref) (Ref)
10
−10 1)
002)
30
−30 3)
40
−40 4)
50
−50 5)
60
−60 6)
70
−70 7)
80 −80 8)