HP 16532A - Performance Tests

4.Set the signal generator for 1MHz at 2.4 dBm. On the oscilloscope, select RUN - REPETITIVE. The signal on the screen should be two cycles at three divisions amplitude.

5.After the measurement settles (averaging complete, about 15 seconds), select STOP. In the

Auto-Measure menu note the Vp-preading. V1MHz = __________ mV.

6.Set the power meter Cal Factor % to the 1MHz value from the calibration chart on the power splitter. Then press dB[REF] to set a 0 dB reference.

7.Change the signal generator to 250 MHz. Set power meter Cal Factor % to the 250 MHz value from the chart.

8.Adjust the signal generator amplitude for a power reading as close as possible to 0.0 dB[REL]. Reading = __________ dB.

9.Set the oscilloscope s/Div for 2 ns/Div and select RUN-REPETITIVE.

10.After the measurement settles (averaging complete), select STOP. In the Auto-Measure menu note the Vp-preading. V250MHz = ________mV.

11.Calculate the response using the formula:

response (dB) = 20 log10V250Mhz = 20log10 (_____) = ______dB

V1MHz

12.Correct the result from step 11 with any differences in the power meter from step 8. Observe signs. For example:

Result from step 11 = 2.3 dB Power meter reading = 0.2 dB[REL]

then true response = (2.3) (0.2) 2.1dB

(__________) (__________) = ____________ dB

13.The result from step 12 should be ≤ − 3.0 dB. Record the result in the Performance Test Record.

14.In the Channel menu select channel 2. In the Waveform Selection menu delete channel 1 and insert channel 2.

15.Repeat steps 2 through 14 for channel 2, replacing channel 1 with channel 2 where applicable.

Note

Failure of the bandwidth test can be caused by a faulty attenuator or main assembly.

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HP 1GSa/s Digitizing Oscilloscope 16532A manual V1MHz