Chapter 2 173
Performance Verification Tests
23. Frequency Response, Agilent E4402B and E4403B
Procedure
Source/Splitter Characterization
1. Connect the equipment as shown in Figure 2-29; use the function
generator as the source. Connect one of the Agilent 8482A power
sensors to Channel A of the power meter. This will be the “reference”
sensor. Connect the other Agilent 8482A power sensor to Channel B
of the power meter. This will be the “buried” sensor.
Figure 2-29 Source/Splitter Characterization Setup
2. Zero and calibrate both power sensors.
3. On the power meter, set the Channel A calibration factor to the
calibration factor of the reference sensor for 100 kHz.
4. On the power meter, set the Channel B calibration factor to 100%.
Do not change this calibration factor during this test.
5. Set the function generator frequency to 100 kHz and amplitude to
–4 dBm.
6. Adjust the function generator amplitude to obtain a Channel A
power meter reading of –10 dBm ±0.1 dB.
7. Record the function generator amplitude setting, and both the
Channel A and Channel B power meter readings in Table 2-44.
8. Tune the source to the next frequency in Table 2-44.
9. On the power meter, set the Channel A calibration factor to the
calibration factor of the reference sensor for the current source
frequency.