Agilent Technologies 8935 Series Spezifikationen PDF herunterladen (Seite 217)

216 Chapter 8

Performance Tests

RF Analyzer FM Bandwidth Performance Test 22

b. Set the output frequency to 1 kHz.

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 400 MHz.

h. Set the Input Port field to Ant.

i. Set the IF Filter field to 230 kHz.

j. Set the Squelch field to Open.

k. Select the AF ANALYZER screen.

l. Set the AF Anl In field to FM Demod.

m.Set the Filter 2 field to >99kHz LP.

n. Set the Detector field to Pk+.

5. Set the audio analyzer to the following frequencies: 20 Hz, 100 Hz, 1

kHz, 10 kHz, 35 kHz, and 70 kHz. For each frequency adjust the

audio analyzer’s level until the measuring receiver reads 25 kHz FM

deviation and record the deviation read on the Test Set.

6. Of the FM deviations measured by the Test Set find the maximum

and minimum deviations and make the following calculation:

Equation 8-2

Record the dB difference in the Performance Test Record and

compare it with the limits shown.

dB 20

Maximum Deviation

Minimum Deviation

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Agilent Technologies 8935 Series Spezifikationen Seite 217