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

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

26.Record the synthesizer/level generator frequency readout in column 2 of Table 2-22.

27.Adjust the synthesizer/level generator frequency for maximum marker amplitude.

28.Repeat steps 18 through 26 for the 120 kHz EMI bandwidth (4BW5

120kHz EMI BW ) and the 1 MHz EMI bandwidth (4BW5 1 4MHz5).

29.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 2-22.

RES BW Accuracy = Upper Frequency 0 Lower Frequency

Table 2-22. EMI Resolution (IF) Bandwidth Accuracy

EMC Analyzer

 

Column 1

 

Column 2

TR Entry

RES BW

 

Synthesizer

 

Synthesizer

 

 

 

Lower Frequency

 

Upper Frequency

 

 

 

 

 

 

 

 

 

9 kHz

 

 

 

 

 

 

8

120 kHz

 

 

 

 

 

 

9

1 MHz

 

 

 

 

 

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30.Press 4PRESET5 on the EMC analyzer, then wait for the preset routine to ￿nish. Set the EMC analyzer by pressing the following keys:

4FREQUENCY5 50 4MHz5

4SPAN5 1 4MHz5

4MKR !5 MARKER ! HIGH

4MKR5 More 1 of 3 MK TRACK ON OFF (ON)

4SPAN5 1 4kHz5

Wait for the auto zoom routine to ￿nish, then press the following keys:

4MKR5 MARKER 1 ON OFF (OFF)

Performance Veri￿cation Tests 2-91