32. Spurious Response, HP 8595EM

52.Disconnect the power sensor from the directional coupler. Connect the directional coupler directly to the EMC analyzer INPUT 50 ￿ using an adapter (do not use a cable).

53.On the EMC analyzer, press the following key:

4MKR !5 MARKER ! HIGH

4AMPLITUDE5 More 1 of 3 PRESEL PEAK Wait for the peaking message to disappear.

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

4SPAN5 200 4kHz5

Wait for the AUTO ZOOM message to disappear, then press the following EMC analyzer keys:

4MKR5 More 1 of 3 MK TRACK ON OFF (OFF) 4FREQUENCY5 4 * 5 (step-up key)

4MKR !5 MARKER ! HIGH

More 1 of 3 MARKER ! REF LVL

54.On synthesized sweeper #2, set RF on. Adjust the power level until the two signals are displayed at the same amplitude.

If necessary, adjust the EMC analyzer center frequency until the two signals are centered on the display.

55.Set the EMC analyzer by pressing the following keys:

4BW5 IF BW AUTO MAN (MAN) 1 4kHz5

AVG BW AUTO MAN (MAN) 100 4Hz5

56.Press 4MKR !5 MARKER ! HIGH , More 1 of 3 More 2 of 3 MARKER 1 then set the DISPLAY LINE to a value 54 dB below the current reference level setting.

The third-order intermodulation distortion products should appear 50 kHz below the lower frequency signal and 50 kHz above the higher frequency signal. Their amplitude should be less than the display line. See Figure 2-51.

2-220 Performance Veri￿cation Tests