Fluke 6060B Instruction Manual page 129

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g. Verify that the Modulation Analyzer reading is less than 44-Hz rms (or
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h. Verify that the Modulation Analyzer reading is less than 22-Hz rms (or
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I.
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SWR TESTS
4A-13.
These tests use a VSWR bridge and a Spectrum Analyzer to verify SWR of the UUT.
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REQUIREMENTS
•
The output VSWR is less than 1.5:
TEST EQUIPMENT REQUIRED
SWR bridge (Wiltron 62N50 or equivalent) High-Frequency Spectrum Analyzer
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HFSSG (Fluke 6060B or equivalent)
REMARKS
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The UUT settings in this procedure are chosen to provide confidence in the SWR
performance of the UUT throughout its range. However, performance also may be
checked at other levels <-10 dBm.
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PROCEDURE
a. Connect the HFSSG to the VSWR Bridge RF IN.
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b. Connect the Spectrum Analyzer to the VSWR Bridge RF OUT.
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c. Connect the UUT to the VSWR Device Under Test.
d. Program UUT to 1 M Hz,
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e. Program the HFSSG to 10 MHz, 13 dBm.
f. Set the Spectrum Analyzer controls to display approximately 10 to 520 MHz.
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Set Reference Level to
g. Step HFSSG from 10 MHz to 1050 MHz in 5 MHz-steps and note frequency
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and level where the level is a maximum.
h. Program HFSSG to the frequency found in step g.
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I.
Disconnect UUT from VSWR bridge.
j.
Note Spectrum Analyzer level.
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k. The difference between the levels in steps i and g should be greater than 18 dB.
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I Repeat step
m. The difference between levels in step i and g should be greater than 9.5dB.
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40-Hz average) at the UUT frequencies listed in step e.
20-Hz average) at the UUT frequencies listed in step d.
Verify that the Modulation Analyzer reading is less than 44-Hz rms (or
40-Hz average) at the UUT frequencies listed in step c.
for output levels <
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+
1dBm.
10 dBm.
+
e
through k with UUT set to 1 MHz,
ldBm; < 2.0 elsewhere .
+
1 3dBm.
+
MAINTENANCE
PERFORMANCE TISSTS
4A-1 7 /4A-18