56. Non-Harmonic Spurious Outputs, HP 8591EM Option 010

Procedure

1.Connect the Type N cable between the RF OUT 50 ￿ and INPUT 50 ￿ connectors on the EMC analyzer. See Figure 2-81.

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

4FREQUENCY5 300 4MHz5

4SPAN5 ZERO SPAN

4BW5 IF BW AUTO MAN (MAN) 30 4kHz5

4MKR5

4AUX/USER5 Track Gen SRC PWR ON OFF (ON) 102 4dB￿V5

3.On the EMC analyzer, press TRACKING PEAK , then wait for the PEAKING message to disappear.

4.On the EMC analyzer, press 0 4dBm5 then 4SGL SWP5.

It is only necessary to perform the next step if more than 2 hours have elapsed since a front-panel calibration of the microwave spectrum analyzer has been performed.

The microwave spectrum analyzer should be allowed to warm up for at least 30 minutes before proceeding.

5.Perform a front-panel calibration of the microwave spectrum analyzer by performing the following steps:

Note that the following steps are for an HP 8566A/B microwave spectrum analyzer, the steps may be di￿erent if you are using another microwave spectrum analyzer.

a.Connect a BNC cable between CAL OUTPUT and RF INPUT.

b.Press 42 0 22 GHz5 (INSTR PRESET), 4RECALL5, 8. Adjust AMPTD CAL for a marker amplitude reading of 010 dBm.

c.Press 4RECALL5, 9. Adjust FREQ ZERO for a maximum amplitude response.

d.Press 4SHIFT5, 4FREQUENCY SPAN5 to start the 30 second internal error correction routine.

e.Press 4SHIFT5, 4START FREQ5 to use the error correction factors just calculated.

6.Connect the Type N cable from the tracking generator output to the microwave spectrum analyzer RF INPUT as shown in Figure 2-81.

Performance Veri￿cation Tests 2-355