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260 Chapter 2
Performance Verification Tests
30. Spurious Responses: Agilent E4401B and E4411B
30.If the analyzer is an E4401B and is equipped with Option 1DR,
Narrow Resolution Bandwidth, perform step 31 through step 36.
Otherwise, continue with step 37.
31.Set synthesized signal generator frequency to the F1 value used in
TOI Test 1 of Table 2-69.
32.Set synthesized sweeper CW frequency to the F2 value used in TOI
Test 1 of Table 2-69.
33.Press
Preset on the analyzer. Press the Factory Preset softkey, if it is
displayed. Press
System, Alignments, Auto Align, Off. Set the analyzer
to the F1 value for TOI Test Option 1DR in Table 2-69. Then set the
analyzer by pressing the following keys:
FREQUENCY, CF Step, 50 kHz (Man)
SPAN, 20 kHz
AMPLITUDE
, More, Y Axis Units (or Amptd Units), dBm
AMPLITUDE, Ref Level
, –5 dBm (50 Ω Input only)
AMPLITUDE, Ref Level, –10 dBm (75 Ω Input only)
AMPLITUDE, Attenuation, 5 dB (Man) (50 Ω Input only)
AMPLITUDE, Attenuation, 0 dB (Man) (75 Ω Input only)
BW/Avg, 1 kHz (Man)
BW/Avg, Video BW, 300 Hz (Man)
Peak Search (or Search), More
Search Param (or Search Criteria)
, Peak Excursn, 3 dB
34.On the analyzer, press the following keys:
Peak Search (or Search)
Marker →
Mkr → CF
35.Set the analyzer as follows:
SPAN, 500 Hz
BW/Avg, Res BW, 30 Hz
BW/Avg, Video BW,
10 Hz
TOI 17 dBm
62 dB
2
--------------–
⎝⎠
⎛⎞
–– 17 dBm 31 dB+– +14 dBm===
Table 2-70 Third Order Intermodulation Distortion Worksheet
TOI Test
Lower
Distortion
Amplitude
Upper
Distortion
Amplitude
Worst
Distortion
Amplitude
Mixer
Level
Test
Record
Entry
Calculated
TOI
1 1)
Option 1DR 2)