3-10 Chapter3
Functional Testing
Displayed Average Noise Level
7. Press the following keys on the analyzer:
Display, Display Line (On)
Adjust the display line so that it is centered on the average trace
noise, ignoring any residual responses.
8. Record the display line amplitude setting as TR Entry 3 (TR Entry
18 for a 75 Ω Input) in Table 3-1. The average noise level should be
less than the Maximum for the appropriate input impedance.
Procedure (10 MHz to 1 GHz) E4402B, E4403B,
E4404B, E4405B, E4407B, E4408B
1. 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, 1.0 GHz
AMPLITUDE, –70 dBm
Attenuation (Man), 0 dB
BW/Avg, 1 MHz
Video BW Auto Man, 10 kHz
2. 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 three sweeps, then stop).
3. Press Peak Search. Record the frequency in the Measured Frequency
column (d) in Table 3-1 for 10 MHz to 1.0 GHz.
4. 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
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