
188 Chapter 2 
Performance Verification Tests
24. Frequency Response, Agilent E4404B, E4405B, E4407B, and E4408B
Adapter, APC 3.5 (f) to APC 3.5 (f) 
Adapter, Type-N (m) to Type-N (m) 
Adapter, Type-N (m) to BNC (f)
Dual banana plug to BNC (f) 
BNC Tee (BNC f,m,f) 
Cable, BNC, 122-cm (48-in) (2 required)
Cable, APC 3.5
Termination, 50 Ω, BNC (m)
Procedure
Source/Splitter Characterization
1. Connect the equipment as shown in Figure 2-32. 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 2-32  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