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Chapter 4 161
ESA Functional Tests
Tracking Generator Level Flatness: Models E4401B and E4411B, Options 1DN and 1DQ
ESA Functional Tests
Figure 4-8 Equipment Setup
Procedure
1. Calibrate the tracking generator by pressing System, Alignments, Align Now, TG.
Connect the RF Out to the Input when prompted.
2. Press
System, Power On/Preset, Preset Type (Factory), Preset on the analyzer, then wait
for the preset routine to finish. Set the analyzer by pressing the following keys:
FREQUENCY, Center Freq, 50, MHz
CF Step
, 500, MHz
SPAN
, Zero Span
Source,
Amplitude (On), 0, dBm (50 Ω RF Output only)
Source, Amplitude (On), 42.76, dBmV (75 Ω RF Output only)
3. Zero and calibrate the power meter and RF power sensor. Make sure the power meter is
reading out in dBm. Enter the power sensor 50 MHz cal factor into the power meter.
NOTE 75 Ω RF Out only: Zero and calibrate the 75 Ω power sensor.
4. Connect the power sensor to the RF Out on the analyzer as shown in Figure 4-8.
NOTE 75 Ω RF Out only: Connect the 75 Ω power sensor through an adapter to the
RF Out 75 Ω.
5. Press REL on the power meter. The power meter readout amplitudes are now relative to
the power level at 50 MHz.
6. Set the analyzer center frequency to 100 kHz by pressing
FREQUENCY, 100, kHz.
NOTE 75 Ω RF Out only: Set the analyzer center frequency to 1 MHz.
7. Enter the appropriate power sensor Cal Factor for the test frequency into the power
meter as indicated on the label of the power sensor.
8. Record the power level displayed on the power meter as the Level Flatness in Table 4-8.