55. Harmonic Spurious Outputs, HP 8593EM,

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

Wait for the PEAKING message to disappear, then press the following keys:

SRC PWR ON OFF (ON) 106 4dB￿V5

4FREQUENCY5 300 4kHz5

4SGL SWP5

4.Connect the Type N cable from the tracking generator output to the microwave spectrum analyzer RF INPUT as shown in Figure 2-80.

5.Set the microwave spectrum analyzer controls as follows:

CENTER FREQUENCY ::: :: :: :: ::: :: :: :: :: ::: :: :: :: ::: :: :: :: :: ::: :: : 300 kHz

SPAN : ::: :: :: :: :: ::: :: :: :: ::: :: :: :: :: ::: :: :: :: ::: :: :: :: :: ::: :: :: :: ::: : 20 kHz

REFERENCE LEVEL :: :: :: :: ::: :: :: :: ::: :: :: :: ::: :: :: :: :: ::: :: :: :: : +5 dBm

RES BW : : : : : :: : : : : : : : :: : : : :: :: :: :: : :: : : : : : : : : : : : : : : : : : : :: :: :: : : :: : : : :: 1 kHz

LOG dB/DIV : : : : : : : : :: : : : : : : :: : : : : : : : :: :: : : : : : : : : : : : : : : :: : : :: : : : :: :: :: : 10 dB

6.Set up 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.Press PEAK SEARCH and SIGNAL TRACK (ON). Wait for the signal to be displayed at center screen.

b.Press PEAK SEARCH, CF STEP SIZE 10 MHz, CENTER FREQUENCY, then SIGNAL TRACK (OFF).

c.Press PEAK SEARCH, MKR/1 !STP SIZE, MARKER 1.

d.Press CENTER FREQUENCY and 4*5 (step-up key) to tune to the second harmonic, then press PEAK SEARCH. (If the center frequency is greater than 2.5 GHz, press PRESEL PEAK, then wait for the PEAKING! message to disappear.)

Record the marker amplitude reading in Table 2-71 as the 2nd Harmonic Level for the 300 kHz Tracking Generator Output Frequency.

e.Press 4*5 (step-up key). If the Tracking Generator Output Frequency is less than 1 GHz. Press PEAK SEARCH. (If the center frequency is greater than 2.5 GHz, press PRESEL PEAK and wait for the PEAKING message to disappear.)

Record the marker amplitude reading in Table 2-71 as the 3rd Harmonic Level for the 300 kHz Tracking Generator Output Frequency.

f.Press MARKER (OFF).

7.Change the tracking generator and microwave spectrum analyzer frequency to the next frequency listed in Table 2-71, then repeat step 6. Note that

2-352 Performance Veri￿cation Tests