HP 8559A kHz, RESOLUTION BANDWIDTH SELECTIVITY (Cont'd)

MODEL 8559APERFORMANCETESTS

	PERFORMANCE TESTS
4-16.	RESOLUTION BANDWIDTH SELECTIVITY (Cont'd)
	Signal Generator:
	COUNTERMODE ..............................................	INT,EXPANDXlO
	AM .......................................................................	OFF
	FM ........................................................................	OFF
	FREQUENCYTUNE ......................................................	35MHz
	RF ..........................................................................	ON
	OUTPUTLEVEL ..........................................................	OdBm
12.	Connect equipment as shown in Figure 4-12.

SPECTRUM

ANALYZER

SIGNAL GENERATOR

RF OUTPUT	IINPUT
ADAPTER tI	tADAPTER

FIGURE 4-12. RESOLUTIONBANDWIDTHSELECTIVITYTESTSETUP,100 kHzTO3 MHz

Adjust spectrum analyzer TUNING to locate peak of 35-MHz signal on CRT Reduce signal generator output if necessary.

Adjust signal generator OUTPUT LEVEL to position trace at top graticule line.

Tune signal generator frequency until trace drops to 2 divisions above graticule baseline. Record signal generator frequency.

MHz

Tune signal generator frequency in direction opposite to that of step 16 until trace peaks (top graticule line) and then drops to 2 divisions above graticule baseline. Record signal generator frequency.

MHz

Calculate and record resolution bandwidth at 60-dB points (difference between frequencies recorded in steps 16 and 17).

kHz