134 Chapter 4
ESA Functional Tests
Displayed Average Noise Level
ESA Functional Tests
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. Record the display line amplitude setting as TR Entry 13 or 14 in Table4-1 on page 138.
The average noise level should be less than the Maximum.
Procedure (12.01 GHz to 13.2 GHz) E4405B
1. Press Preset 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, 12.01, GHz
Stop Freq, 13.2, GHz
AMPLITUDE, –70, dBm
Attenuation (Man), 0, dB
BW/Avg, Res BW, 1, MHz
Video BW, 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 3 sweeps
and then stop).
3. Press Peak Search. Record the marker frequency next to your analyzer model in the
Measured Frequency column as entry (q) in Table4-1 on page 138 for 12.01 GHz to 13.2
GHz.
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