21. Frequency Response, HP 8594EM

25.Set the EMC analyzer center frequency and the synthesizer/level generator frequency to the frequencies listed in Table 2-34. At each frequency, adjust the synthesizer/level generator amplitude for a MKR 1-TRK amplitude reading of 0.00 60.05 dB. Record the synthesizer/level generator amplitude setting in Table 2-34 as the Synthesizer/Level Generator Amplitude.

26.For each of the frequencies in Table 2-34, subtract the Synthesizer/Level Generator Amplitude Reading (column 2) from the Synthesizer/Level Generator Amplitude Setting (50 MHz) recorded in step 20. Record the result as the Response Relative to 50 MHz (column 3) of Table 2-34.

27.Add to each of the Response Relative to 50 MHz entries in Table 2-34 the Measuring Receiver Reading for 50 MHz listed in Table 2-33. Record the results as the Response Relative to 300 MHz (column 4) in Table 2-34.

28.Record the test results in the performance veri￿cation test record by performing the following steps:

a. Enter the most positive number from Table 2-34, column 4:

dB

b.Enter the most positive number from Table 2-33, column 2: dB

c.Enter the more positive of numbers from (a) and (b) as TR Entry 1 of the performance veri￿cation test record. (Absolute referenced to 300 MHz.)

d.Enter the most negative number from Table 2-34, column 4:

dB

e.Enter the most negative number from Table 2-33, column 2: dB

f.Enter the more negative of numbers from (d) and (e) as TR Entry 2 of the performance veri￿cation test record.

g.Subtract (f) from (c), then enter this value as TR Entry 3 of the performance veri￿cation test record. (Relative ￿atness.)

2-128 Performance Veri￿cation Tests