194 Chapter 2
Performance Verification Tests
24. Frequency Response, Agilent E4404B, E4405B, E4407B, and E4408B
Setup Change Error =__________ dB
30.For frequencies less than 10 MHz calculate the Flatness Relative to
50 MHz for each frequency in Table 2-50 as follows:
For example, if Flatness Error is –0.30 dB, 50 MHz Ref Amptd is
0.15 dB and Setup Change Error is –0.19 dB, Flatness Relative to
50 MHz would be –0.26 dB.
31.For frequencies 10 MHz and greater, calculate the Flatness Relative
to 50 MHz for each frequency in Table 2-50 as follows:
For example, if Flatness Error is –0.30 dB and 50 MHz Ref Amptd is
0.15 dB, Flatness Relative to 50 MHz would be –0.45 dB.
32.If the analyzer under test is an Agilent E4407B with Option UKB,
E4404B or E4405B, continue with this procedure. Otherwise,
perform the procedure in “Measuring Frequency Response Less
Than or Equal to 100 kHz.”
33.Replace the function generator with the synthesized sweeper.
34.Set the source frequency to 10 MHz and the source power level to the
value corresponding to the source power setting in Table 2-49 for the
current source frequency (10 MHz).
35.On the analyzer, press Input/Output (or Input), Coupling (AC).
36.Repeat step 5 through step 31 for ac coupling.
37. Perform the procedure in “Measuring Frequency Response Less
Than or Equal to 100 kHz.”
Flatness Relative to 50 MHz Flatness Error 50 MHz Ref Amptd– Setup Change Error–=
Flatness Relative to 50 MHz Flatness Error 50 MHz Ref Amptd–=
Table 2-50 Frequency Response Worksheet, 100 kHz to 3.0 GHz
Freq.
(MHz)
Splitter
Tracking
Error
Current
Channel B
Reading
Marker (Mkr1)
Amptd Flatness Error
Flatness
Relative to
50 MHz
dc ac dc ac dc ac dc ac
0.1a
0.5a
1a
5a
10ab