198 Chapter 2
Performance Verification Tests
24. Frequency Response, Agilent E4404B, E4405B, E4407B, and E4408B
9. On the analyzer, press Peak Search (or Search), Marker, Delta.
10.Set the analyzer center frequency to the next frequency listed in
Table 2-51.
11.Set the function generator frequency to the next frequency listed in
Table 2-51. Frequencies less than 9 kHz only apply to analyzers with
Option UKB.
12.On the analyzer, press Peak Search (or Search).
13.Adjust the function generator amplitude until the marker delta (∆
Mkr1) amplitude reads 0 dB ±0.05 dB.
14.Record the DVM reading in Table 2-51 as the DVM Amplitude
reading.
15.Repeat step 10 through step 14 for each frequency setting listed in
Table 2-51.
16.For each of the frequencies in Table 2-51, subtract the DVM
Amplitude from the DVM Amplitude at 100 kHz recorded in step 8.
Record the result as the Response Relative to 100 kHz in Table 2-51.
17.From Table 2-50, note the Flatness Relative to 50 MHz for the
100 kHz frequency. Record this below as the 100 kHz Error Relative
to 50 MHz:
100 kHz Error Relative to 50 MHz =__________ dB
18.Add the 100 kHz Error Relative to 50 MHz that was recorded in
step 17 above to each of the Response Relative to 100 kHz entries in
Table 2-51. Record the results as the Response Relative to 50 MHz in
Table 2-51.
Table 2-51 Frequency Response Worksheet, ≤100 kHz
Frequency DVM
Amplitude
Response
Relative to
100 kHz
Response
Relative to
50 MHz
100 kHz 0 dB (Ref)
75 kHz
50 kHz
20 kHz
9 kHz
5 kHza
2 kHza
1 kHza