Keysight U8903B, Руководство по обслуживанию

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4 Performance Verification for Digital Generator and Digital Analyzer
70 Keysight U8903B Service Guide
7 Set the DSO8064A oscilloscope to measure the amplitude of Function 1 and record the
measurement as V
measure
.
8 Compute the level accuracy using the following equation.
Level Accuracy (dB) = 20 × Log (V
measure
/ V
DUT
)
9 Repeat step 5 to step 8 for the rest of the V
DUT
as given in “ Test record for balanced
output level accuracy verification ” on page 141 to complete the verification of the
different voltages.
10 Repeat step 4 to step 9 for the rest of the F
SR
as given in “ Test record for balanced
output level accuracy verification ” on page 141 to complete the verification of the
different sampling rates.
1.8 0.15 2.4
2.0 0.175 2.8
2.3 0.195 3.12
2,.5 0.21 3.36
2.8 0.235 3.76
3 0.25 4
3.3 0.275 4.4
3.5 0.295 4.72
3.8 0.32 5.12
4 0.335 5.36
4.3 0.36 5.76
4.5 0.375 6
4.8 0.4 6.4
5.1 0.425 6.8
Table 4-4 Channel 1 and channel 2 vertical scale and vertical scale range (continued)
V
DUT
(V)
CH1 and CH2 voltage per division (V) Function 1 vertical scale range (V)