61. Tracking Generator LO Feedthrough Amplitude,

HP 8593EM, HP 8594EM, HP 8595EM, HP 8596EM Option 010

Procedure

It is only necessary to perform step 1 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.

1.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 2 - 22 GHz (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 SHIFT, FREQUENCY SPAN to start the 30 second internal error correction routine.

e.After the CALIBRATING! message disappears, press SHIFT, START FREQ to use the error correction factors just calculated.

2.Connect the Type N cable between the RF OUT 50 ￿ and INPUT 50 ￿ connectors on the EMC analyzer. See Figure 2-86.

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

4FREQUENCY5 Band Lock 0-2.9 Gz BAND 0

The HP 8594EM does not need to be band locked.

4FREQUENCY5 300 4MHz5

4SPAN5 0 4Hz5

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

4MKR5

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

4.Press TRACKING PEAK , then wait for the PEAKING! message to disappear.

5.Press the following EMC analyzer keys:

2-382 Performance Veri￿cation Tests