Chapter 2 119
Performance Verification Tests
15. Reference Level Accuracy: Agilent E4402B, E4403B, E4404B, E4405B, E4407B, and
E4408B.
Example for 50 dB attenuator setting:
Log Scale, Analog Bandwidths
1. Set the synthesized signal generator controls as follows:
FREQUENCY, 50 MHz
AMPLITUDE, 12 dBm
2. Connect the equipment as shown in Figure 2-15. Set the 10 dB step
attenuator to 20 dB attenuation and the 1 dB step attenuator to
5 dB attenuation.
3. Press Preset on the analyzer. Press the Factory Preset softkey, if it is
displayed. Press System, Alignments, Auto Align, Off. Set the analyzer
by pressing the following keys:
FREQUENCY, 50 MHz
AMPLITUDE, –20 dBm
Attenuation, 10 dB
Scale/Div, 1dB
SPAN, 50 kHz
BW/Avg, 3 kHz
Video BW, 30 Hz
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 2-24. 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
2-24.
d. Add the Actual Attenuator Step to the analyzer marker delta
amplitude and enter the result as the Test Record entry in the