Agilent Technologies E1401-90493 Manuel d'utilisateur Page 223

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Chapter 2 223
Performance Verification Tests
26. Frequency Response (Preamp On): Agilent E4402B
15.Set the synthesized sweeper CW frequency to 10 MHz and the
amplitude to 6 dBm.
16.Adjust the synthesized sweeper power level to obtain a Channel A
power meter reading of –20 dBm
±0.1 dB.
17.Record both Channel A and Channel B power meter readings in
Table 2-60.
18.Repeat step 9 through step 12 for each remaining frequency in
Table 2-60.
19.For each entry in Table 2-60, calculate the Splitter Tracking Error as
follows:
For example, if Channel A Power is –20.3 dBm and Channel B power
is –0.23 dBm, the splitter tracking error is –20.07 dB.
Splitter Tracking Error Channel A Power Channel B Power=
Table 2-60 Source/Splitter Characterization
Frequency
Power Meter Reading Splitter
Tracking
ErrorChannel A Channel B
1 MHz
5 MHz
10 MHz
a
10 MHz
b
20 MHz
50 MHz
75 MHz
175 MHz
275 MHz
375 MHz
475 MHz
575 MHz
675 MHz
775 MHz
825 MHz
875 MHz
925 MHz
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