174 Chapter 2
Performance Verification Tests
23. Frequency Response, Agilent E4402B and E4403B
10.Adjust the source amplitude to obtain a Channel A power meter
reading of –10 dBm ±0.1 dB.
11.Record the source amplitude setting, and both the Channel A and
Channel B power meter readings in Table 2-44.
12.Repeat step 8 through step 11 for frequencies up through 10 MHz.
13.Replace the function generator with the synthesized sweeper.
14.Set the synthesized sweeper CW frequency to 10 MHz and the
amplitude to –4 dBm.
15.Adjust the synthesized sweeper power level to obtain a Channel A
power meter reading of –10 dBm ±0.1 dB.
16.Record the synthesized sweeper power level and both the Channel A
and Channel B power meter readings in Table 2-44.
17.Repeat step 8 through step 11 for each remaining frequency in Table
2-44.
18.For each entry in Table 2-44, calculate the Splitter Tracking Error as
follows:
For example, if Channel A Power is –10.05 dBm and Channel B
Power is –10.23 dBm, the Splitter Tracking Error is 0.18 dB.
Splitter Tracking Error Channel A Power Channel B Power–=
Table 2-44 Source/Splitter Characterization
Frequency
Power Meter Reading Splitter
Tracking
Error
Source
Power
SettingChannel A Channel B
100 kHz
500 kHz
1 MHz
5 MHz
10 MHza
10 MHzb
20 MHz 0 dB (Ref)
50 MHz
75 MHz
175 MHz
275 MHz
375 MHz