SPECTRUM ANALYZER
16. Harmonic and Intermodulation Distortion Test
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
dBm
f0.20
dB.
Set both synthesized source RF OUTPUT
switches to the ON position (power meter reading should be
approximately -22
dBm).
Note
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 @7GZiZJ on the spectrum analyzer.
l-4
POWER NETER
JUT
%
FllEO
RVElEYCE
I
‘I
POWER
SENSOR
ADAPTER
3
DB
POWER
ATTENUATOR
DIVIDER
SIBNAL
BENERATOR
Figure 2-29. Intermodulation Distortion Test Setup
33. Key in analyzer settings as follows:
[CENTER FREQUENCY]
.................................
.2099.5
MHZ
[CF
STEP
SIZEj
...............................................
1
MHz
FREQUENCY SPAN)
t&E@
...........................................
2
kHz
.......................................................
0
dB
34. Wait for completion of the sweep (asterisk should not appear on
display), then press MARKER (PEAK SEARCH),
(MKR).
Wait for
completion of the sweep.
35. Press MARKER
a].
Activate [CENTER FREQUENCY] and press
@J
once to tune to the third order product at 2098.5 MHz.
Performance Tests 2-69
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