HP HP 8566B, Руководство по настройке

Страница: 93 / 405

16. Harmonic and Intermodulation Distortion
18. Press
on the analyzer. Key in the following:
FREQUENCY
_) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.2
19.
20.
Press MARKER (
PEAK SEARCH
),
Set
(
FREQUENCY
to 10 Press MARKER
[
PEAK SEARCH
),
STP SIZE .
21. Adjust synthesized sweeper output level to place peak of signal
trace at the reference level line.
22.
23.
24.
Press DISPLAY LINE and key in -80
Activate (
CENTER FREQUENCY
) and press to tune to the second
harmonic of the input signal.
Key in the following:
(
REFERENCE LEVEL
] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20
[
FREQUENCY SPAN
] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
25. The second harmonic should be below the display line 100
2 6 .
Second harmonic level of 7200 MHz
Set both synthesized sources as follows:
RANGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . + 10
METER MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LEVEL
RF OUTPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OFF
ALC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INT
AM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OFF
FM DEVIATION MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OFF
27. Connect equipment as shown in Figure 2-29 with “output”
of power divider connected to power sensor. The FREQ
REFERENCE switch
on the rear panel of the analyzer should be
set to INT and the FREQ REFERENCE switch on both synthesized
source rear panels should be set to EXT.
28. Set one synthesized source for an output frequency of 2099.500
MHz, the other to 2100.500 MHz.
29. Set one synthesized source RF OUTPUT switch to ON and adjust
the output power level for a power meter indication of -25.00
f0.20 Return the RF OUTPUT switch to the OFF setting.
Performance Tests