HP 8568B +lO, kHz, Set, 10 kHz, 0 (ref), 0 (ref), 0 (ref), sk1.0 dB, <%1.5 dB, DEOBW) t, 22. Key in analyzer settings as follows:

12. Option 857 Amplitude Fidelity Test

20.Subtract the greatest negative fidelity error from the greatest positive fidelity error for calibrated amplitude steps from -10 dB to -70 dB. The results should be SO.6 dB.

dB

21.Subtract the greatest negative fidelity error from the greatest positive fidelity error for calibrated amplitude steps from -10 dB to -90 dB. The results should be 1.1.5 dB.

dB

‘Ihble 5-2. Log Amplitude Fidelity (10 kBz RBW; Option 857)

Frequency	1	2			Fidelity Error	Cumulative	Cumulative
Synthesizer	Calibrated	MARKER A Amplitude		(Column 2 - Column 1)		Error	Error
Amplitude	Amplitude	(3			PI	0 to 80 dB	0 to 90 dB
(dBm)	Step					WV	(dB)
+lO	0 (ref)		0 (ref)		0 (ref)
0	- 1 0
- 1 0	- 20
- 20	- 30
- 30	- 40
- 40	- 50
- 50	- 60
- 60	- 70
- 70	- 80
- 80	- 90					sk1.0 dB	<%1.5 dB

Linear Fidelity
22. Key in analyzer settings as follows:
&iEEEK-BW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		300 Hz
		20 kHz
	FREQUENCY SPAN_) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
km, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		10 kHz

23.Set the frequency synthesizer for an output power level of + 10 dBm.24.Press SCALE LIN pushbutton. Press MARKER[PEAK SEARCH_),(MKR) to center the signal on the display.

25.Set (FREQUENCY SPAN) to 0 Hz and CV’DEOBW) to 1 Hz. Press (SHIFT), m (resolution bandwidth), MARKER a].

26.Decrease frequency synthesizer output amplitude by 10 dB steps,. noting the MARKER A amplitude and recording it in column 2 of ‘Iable 5-3.

Option 857 5-5