HP 8568B, Performance Tests And Adjustments Manual, Page: 299 / 313

12. Option 857 Amplitude Fidelity
Frequency 1
Synthesizer Calibrated
Amplitude Amplitude
Step
0 (ref)
0 - 1 0
- 1 0
-20
-20 -30
-30 -40
-40 -50
-50
-60
-60 -70
-70 -80
-80 -90
20. Subtract the greatest negative fidelity error from the greatest
positive fidelity error for calibrated amplitude steps from -10
to -70
The results should be
21. Subtract the greatest negative fidelity error from the greatest
positive fidelity error for calibrated amplitude steps from -10
to -90
The results should be
5-2. Log Amplitude Fidelity (10 Option 857)
2 Fidelity Error
MARKER A Amplitude (Column 2 Column 1)
0 (ref) 0 (ref)
Cumulative Cumulative
Error Error
0 to 80 0 to 90
Linear Fidelity
22. Key in analyzer settings as follows:
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300
Hz
FREQUENCY
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
23. Set the frequency synthesizer for an output power level of + 10
24. Press SCALE LIN pushbutton. Press MARKER
[
PEAK
to center the signal on the display.
25.
Set
(
FREQUENCY SPAN
)
to 0 Hz and to 1 Hz. Press (SHIFT),
(resolution bandwidth), MARKER
26. Decrease frequency synthesizer output amplitude by 10 steps,
. noting the MARKER A amplitude and recording it in column 2 of
5-3.
Option 857