3. Set the HP 8566A/B controls as follows:

REFERENCE LEVEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . j-10 dBm

CENTERFREQUENCY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.7MHz

SPAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OHz

RESOLUTION BANDWIDTH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 kHz

VIDEO BANDWIDTH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300kHz

SWEEP TIME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..4.5 s

TRIGGER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Single

4.On the HP 8566A/B press (SHIFT), (trace A blank) to set detector to SAMPLE mode.

5.On the spectrum analyzer, press [m) and set the controls as follows:

CENTER FREQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..300MH z SPAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 MHz

6.On the spectrum analyzer, press (TRIG), SINGLE, (CAL).

7.Simultaneously press (e) on the HP 8566A/B and ADJ CURR IF STATE on the spectrum analyzer. The IF signature is displayed on the HP 8566A/B display.

8.Compare the IF signature to the signature of a properly operating spectrum analyzer illustrated in Figure 8-3. If the signatures do not closely resemble each other, a more detailed view of the signature may show the failed hardware.

a. Set the HP 8566A/B controls as follows:

Sweep Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..O.~S dB/DIV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 dB

b. Simultaneously press I=) on the HP 8566A/B and AD3 CURR IF STATE on the spectrum analyzer. Figure 8-4 through Figure 8-8 illustrate detailed IF signatures of a properly operating HP 8560A.

9. Reconnect W27 (coax 3) to A5J5.

8-24 IF Section