HP 8568B MHz, km), Press, [ENTE, Press, 1.5GHz, MaximumdBm, MinimumdBm, Option 001:, SIGNAL INPUT, Press DISPLAY LINE, (20 MHz to 1.5 GHz), 2 - 24 Performance Tests

8. Frequency Response Test

7.Adjust POWER LEVEL on synthesized sweeper (using data knob) to place peak of 20 MHz signal near reference level (top) graticule line.

8.Press [ENTER dB/mv], 1 dB on spectrum analyzer. Adjust POWER LEVEL on synthesized sweeper to position peak of signal 2 divisions below the reference level line.

9 . Key in the following spectrum analyzer settings:

START FREQ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20.MHz

km) . . . . . . . . . ..__.................................. 1.5GHz

10.Press TRACE A [MAX) on the analyzer.11.Press SWEEP SINGLE on the synthesized sweeper.

REF .0 darn	ATTEN 10		dB
rp
		I		I
I dB/

DL -.B

dBm

,I

START 20 nnz		STOP	1500 MHZ
RES BW 3 Mnt	VBW 1 MHZ	SWP 20	mssc

Figure 2-12. Frequency Response Measurement (20 MHz to 1.5 GHz)

12.Press DISPLAY LINE [ENTER) on the spectrum analyzer. Use the Display Line to measure the maximum and minimum points on the trace. Record measurements below.

SIGNAL INPUT 2

(20 MHz to 1.5 GHz)MaximumdBmMinimumdBm

13.To check SIGNAL INPUT 1, use the type N male to BNC male adapter to connect the power splitter directly to SIGNAL INPUT 1.

Option 001: Use HP 11852A Minimum Loss Pad and adapters between splitter and spectrum analyzer input.

14.Press [INSTR PRESET) on spectrum analyzer, then activate SIGNAL INPUT 1 with the pushbutton.

2 - 24 Performance Tests