Chapter 4 129
ESA Functional Tests
Displayed Average Noise Level
ESA Functional Tests
4. Press the following keys on the analyzer:
Sweep, Sweep (Cont)
BW/Avg, Average (Off)
BW/Avg, Res BW (Auto)
Video BW (Auto)
SPAN, 50, kHz
FREQUENCY
5. Press Center Freq. Set the center frequency of the analyzer to the frequency recorded in
the Measured Frequency column as entry (h), (i) or (j) in Table4-1 on page 138 for
1.01 GHz to 2 GHz.
6. Press the following keys on the analyzer:
BW/Avg, Res BW, 1, kHz
Video BW, 30, Hz
Single
Wait for the sweep to finish.
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. If the analyzer is an E4402B or E4403B, record the display line amplitude setting as TR
Entry 6 in Table4-1 on page 138. Otherwise, record the display line amplitude setting
as TR Entry 7 or 8 in Table4-1 on page 138. The average noise level should be less than
the Maximum.
Procedure (2.01 GHz to 3.0 GHz) E4402B, E4403B, E4404B, E4405B, E4407B, and E4408B
1. Press System, Power On/Preset, Preset Type (Factory), Preset on the analyzer. Wait for the
preset routine to finish. Set the analyzer by pressing the following keys:
FREQUENCY, Start Freq, 2.01, GHz
Stop Freq, 3.0, GHz
AMPLITUDE, –70, dBm
Attenuation (Man), 0, dB
BW/Avg, Res BW, 1, MHz
Video BW, 10, kHz