39.Displayed Average Noise Level, HP 8591EM

16.Press 4MKR !5 MARKER ! HIGH and record the MKR frequency as the Measurement Frequency in Table 2-50 for 1 MHz to 1.5 GHz.

17.Press the following EMC analyzer keys:

4TRACE5 More 1 of 4 More 2 of 4 VID AVG ON OFF (OFF) DETECTOR SMP PK (SMP) (For Options 101, 102, and 301:

DETECTOR PK SP NG (SP))

4AUTO COUPLE5 IF BW AUTO MAN (AUTO) AVG BW AUTO MAN (AUTO)

4SPAN5 20 4kHz5

4FREQUENCY5

18.Set the center frequency to the Measurement Frequency recorded in Table 2-50 for 1 MHz to 1.5 GHz.

19.Press the following EMC analyzer keys:

4BW5 30 4Hz5

AVG BW AUTO MAN (MAN) 30 4Hz5

4SGL SWP5

Wait for the sweep to ￿nish.

20. Press the following EMC analyzer keys:

4DISPLAY5 DSP LINE ON OFF (ON)

Adjust the display line so that it is centered on the average trace noise, ignoring any residual responses (refer to the Residual Responses veri￿cation test for any suspect residuals).

21.Record the display line amplitude setting as TR Entry 3 of the performance veri￿cation test record. The average noise level should be less than the speci￿ed limit.

Performance Veri￿cation Tests 2-269