Agilent Technologies 8935 Series, Manual

Page: 213 / 343

212 Chapter 8
Performance Tests
RF Analyzer FM Accuracy Performance Test 20
3. On the audio analyzer:
a. Reset the instrument.
b. Set the output frequency to 50 Hz.
4. On the Test Set:
a. Press
Preset
.
b. Select the INSTRUMENT CONFIGURE screen.
c. Set the
RF Display
field to
Freq
.
d. Select the CDMA GENERATOR screen.
e. Set the
CW RF Path
field to
Bypass
.
f. Select the RF ANALYZER screen.
g. Set the
Tune Freq
to
12.5 MHz
.
h. Set the
Input Port
field to
Ant
.
i. Set the
IF Filter
field to
230 kHz
.
j. Select the AF ANALYZER screen.
k. Set the
AF Anl In
field to
FM Demod
.
l. Set the
Filter 2
field to
>99kHz LP
.
m. Set the
Detector
field to
RMS
.
5. For each RF output from the AM/FM test source (12.5 MHz and 400
MHz corresponding to the FM÷32 and FM outputs) shown in the
Performance Test Record (PTR), do the following:
a. Set the audio analyzer’s frequency (rate) as shown in the PTR.
b. Adjust the audio analyzer’s level until the measuring receiver
reads the FM deviation shown in the PTR.
c. Read the FM deviation on the Test Set and compare the results to
the limits shown in the PTR.