HP 8559A TUNING, ALT IF, BL CLIP, SIGIDENT, INPUT ATTEN, VIDEOFILTER, FREQ SPAN/DIV, RESOLUTION BW, SWEEP TRIGGER, SWEEP TIME/DIV, REFERENCE LEVEL, 8559A

SERVICE MODEL 8559A

PROCEDURE:
Set H P 8559A Spectrum Analyzer controls as follows:
TUNING ......................................................	.035 GHz
FREQ SPAN/DIV .................................................	1MHz
RESOLUTION BW ...............................................	300 kHz
INPUT ATTEN .....................................................	0 dB
REFERENCE LEVEL ...........................................	- 10 dBm
REFERENCE LEVEL FINE .............................................	0
Amplitude Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	10dB/DIV
SWEEP TIME/DIV ...............................................	AUTO
SWEEP TRIGGER ............................................	FREE RUN
VIDEOFILTER .....................................................	OFF
BL CLIP ...........................................................	OFF
SIGIDENT ........................................................	OFF
ALT IF ............................................................	OFF

Connect equipment as shown. Set signal generator for a 35 MHz, - 10 dBm output signal. Center the Cal signal on the display and adjust for top graticule.

Using board extenders when necessary, check voltages and waveforms indicated on schematic diagrams. Trigger oscilloscope on negative transition of AUX B PENLIFT/BLANKING signal from rear of display mainframe.

To measure RF power levels, set RESOLUTION BW control to 3 MHz and FREQ SPAN/DIV to 0 (zero span). The first LO is not swept in zero span, allowing signal levels to be checked with a second spectrum analyzer (use adapter cables as necessary). DO NOT use a power meter (harmonics and LO signals will contribute to give erroneous levels).

FIGURE 8-2.CONDITIONS FOR SCHEMATIC DIAGRAM MEASUREMENTS (2 OF 2)