17. Resolution (IF) Bandwidth Accuracy, HP 8590 EM-Series

Adjust the synthesizer/level generator amplitude to place the peak of the signal at or below the top graticule.

7.On the synthesizer/level generator, press AMPLITUDE and INCR 4+5 (step-down key).

8.Press MARKER 1 on the EMC analyzer.

9.On the synthesizer/level generator, press INCR 4*5 (step-up key).

10.On the synthesizer/level generator, press FREQUENCY. Lower the frequency of the synthesizer/level generator by adjusting the knob until the marker delta amplitude is 0.0 6 0.05 dB.

11.Record the synthesizer/level generator frequency readout in column 1 of Table 2-21.

12.Using the synthesizer/level generator knob, raise the frequency so that the marker-delta amplitude is maximum. Continue increasing the frequency until the marker reads 0.0 6 0.05 dB.

13.Record the synthesizer/level generator frequency readout in column 2 of Table 2-21.

14.Adjust the synthesizer/level generator frequency for maximum amplitude.

15.Repeat steps 5 through 14 for each of the RES BW settings listed in Table 2-21.

16.Subtract the Synthesizer Lower Frequency from the Synthesizer Upper Frequency. Record the di￿erence as the Resolution Bandwidth Accuracy, in the performance veri￿cation test record as indicated in Table 2-21.

RES BW Accuracy = Upper Frequency 0 Lower Frequency

Performance Veri￿cation Tests 2-89