SPECTRUM ANALYZER
16. Harmonic and Intermodulation Distortion
30. Set the other synthesized source RF OUTPUT switch to ON and
adjust the output power level for a power meter indication of
-25.00
Set both synthesized source RF OUTPUT
switches to the ON position (power meter reading should be
approximately -22
31. Connect output of power divider to analyzer RF INPUT as shown
in Figure 2-29.
Be careful to flex the cable assemblies as little as possible, as flexing
can cause a change in the measured power level. To minimize flexing,
place the power sensor close to the analyzer input.
32. Press
on the spectrum analyzer.
POWER NETER
POWER
SENSOR
ADAPTER
3
POWER
ATTENUATOR
D I V I D E R
Figure 2-29. Intermodulation Distortion
Setup
33. Key in analyzer settings as follows:
[
CENTER FREQUENCY
]
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MHZ
STEP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MHz
FREQUENCY SPAN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
34. Wait for completion of the sweep (asterisk should not appear on
display), then press MARKER
(
PEAK SEARCH
),
Wait for
completion of the sweep.
35. Press MARKER
Activate
[
CENTER FREQUENCY
]
and press
once to tune to the third order product at 2098.5 MHz.
Performance Tests 2-69
