To verify bandwidth
In this test you verify bandwidth by using a power meter and power sensor to
set output of a signal generator at 1 MHz and at 100 MHz. You use the
peak-to-peak voltage at 1 MHz and at 100 MHz to verify the bandwidth
response of the oscilloscope. The test is repeated at 5 mV/div (75-MHz
bandwidth).
Test limits at 10 mV/div to 5 V/div:
all channels (
±
3 dB)
dc to 100 MHz
ac coupled 10 Hz to 100 MHz
Test limits at <10 mV/div:
all channels (
±
3 dB)
dc to 75 MHz
ac coupled 10 Hz to 75 MHz
Table 7-7
Equipment Required
Equipment Critical specifications Recommended Model/Part
Signal generator 1 to 100 MHz at 200 mV HP 8656B opt 001
Power meter and
Power Sensor
1 to 100 MHz
±
3% accuracy HP 436A and HP 8482A
Power splitter Outputs differ by < 0.15 dB HP 11667B
Cable Type N (m), 24 inch HP 11500B
Adapter Type N (m) to BNC (m) HP 1251-0082
Feedthrough 50
Ω
, BNC (m) and (f) HP 11048C
Testing, Adjusting, and Troubleshooting
To verify bandwidth
7-19
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