To verify bandwidth (alternate method)
In this test you verify the bandwidth of the oscilloscope by using a power
meter and power sensor to set the output of a signal generator at 1 MHz and
the upper bandwidth limit. You use the peak-to-peak voltage at 1 MHz and
the upper bandwidth limit to calculate the bandwidth response of the
oscilloscope.
Test limits
HP 54600B and HP 54601B, all channels (
−
3 dB)
dc to 100 MHz
ac coupled 10 Hz to 100 MHz.
HP 54602B
Channels 1 & 2 (–3 dB) *
dc to 150 MHz
ac coupled 10 Hz to 150 MHz.
Channels 3 & 4 (–3 dB)
dc to 250 MHz.
HP 54603B, all channels (
−
3 dB)
dc to 60 MHz
ac coupled 10 Hz to 60 MHz.
Table 4-7
Equipment Required
Equipment Critical specifications Recommended Model/Part
Signal generator 1 to 100 MHz at 200 mV
(250 MHz for HP 54602B)
HP 8656B opt 001
Power meter and
Power Sensor
1 to 100 MHz
±
3% accuracy
(250 MHz for HP 54602B)
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 10100C
*
1mv/div to 5 mv/div dc = 100 MHz.
Service
Verifying Oscilloscope Performance
4–12
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