54. 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 2-79.

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

4MKR5

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

3.On the EMC analyzer, press TRACKING PEAK . Wait for the PEAKING message to disappear, then press the following keys:

107 4dB￿V5

4FREQUENCY5 10 4MHz5

4SGL SWP5

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

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

4.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 the CAL OUTPUT and the 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.

5.Connect the Type N cable from the tracking generator output to the microwave spectrum analyzer RF INPUT as shown in Figure 2-79.

6.Set the microwave spectrum analyzer controls as follows:

CENTER FREQUENCY : :: :: ::: :: :: :: :: ::: :: :: :: ::: :: :: :: : : ::: :: :: :: : 10 MHz

SPAN ::: :: :: :: ::: :: :: :: ::: :: :: :: :: ::: :: :: :: ::: :: :: :: :: ::: :: :: :: ::: :: : 100 kHz

Performance Veri￿cation Tests 2-347