3-6 Chapter3
Functional Testing
Displayed Average Noise Level
Procedure (10 MHz to 500 MHz) E4401B and E4411B
1. Connect the equipment as shown in Figure 3-1.
2. Press
System, Power On/Preset, Preset (Factory), Preset on the
analyzer. Wait for the preset routine to finish. Set the analyzer by
pressing the following keys:
FREQUENCY, Start Freq, 10 MHz
Stop Freq, 500 MHz
AMPLITUDE, –70 dBm (50 Ω Input only)
AMPLITUDE, More 1 of 2, Amptd Units, dBmV, Ref Level, –21.24 dBmV
(75 Ω Input only)
BW/Avg, 1 MHz
Video BW Auto Man, 10 kHz
3. Press the following keys on the analyzer:
Single
BW/Avg, Average (On), 3, Enter
Single
Wait until AVG 3 is displayed to the left of the graticule (the
analyzer will take 3 sweeps, then stop).
4. Press Peak Search. Record the measured frequency in the Measured
Frequency column (a) in Table 3-1 on page 3-22 for 10 MHz to
500 MHz.
5. Press the following keys on the analyzer:
Sweep, Sweep (Cont)
BW/Avg, Average (Off)
BW/Avg, Resolution BW (Auto)
Video BW (Auto)
SPAN, 50 kHz
FREQUENCY
6. Press Center Freq, and set the center frequency of the analyzer to the
frequency recorded in the Measured Frequency column (a) of
Table 3-1 for 10 MHz to 500 MHz.
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