Agilent Technologies 83620A Service Manual page 661

17. Using the video gain from step 10, the video feedthrough (Vp) from step
16, and the carrier voltage from able 2-22, calculate the video feedthrough
as a percent of carrier power:
Video feedthrough (%) = [(video Vp/carrier Vp)x100]/video gain
Table 2-22. Power Level Conversions to Volts Peak
Peak Carrier Voltage = 10
1
18. Record the video feedthrough (in able 2-21).
19. Repeat steps 16 through 18 for the remaining CW frequencies in able
2-21.
20. Record the worst case value from able 2-21 on the test record.
12-36 Performance Tests
Pulse Modulation Video Feedthrough
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Synthesizer Maximum Peak Carrier
Speci ed Power (dBm) Voltage (V)
Into 50
0
0.5
2.0
3.0
4.0
5.5
7.0
10.0
10.5
12.0
13.0
17.0
20.0

PdBm010
20
0.316
0.335
0.398
0.447
0.501
0.596
0.707
1.000
1.059
1.259
1.413
2.239
3.162
Change A