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682XXB/683XXB MM A-237/A-238
TEST MODEL
RECORD 68287B/68387B
3-16 Pulse Modulation Test: RF On/Off Ratio
Test Procedure (1 GHz)
Lower Limit Measured Value Upper Limit
Set F1 to 1.10 GHz
Measure and record the peak of the signal on the Spectrum
Analyzer. (Measured signal must be >60 dB below top graticule
to meet specification; this represents an On/Off Ratio of >80 dB.)
.
60 dB _______ dB N/A
Test Procedure (5 GHz)
Set F1 to 5.0 GHz
Measure and record the peak of the signal on the Spectrum
Analyzer. (Measured signal must be >60 dB below top graticule
to meet specification; this represents an On/Off Ratio of >80 dB.)
.
60 dB _______ dB N/A
3-17 Phase Modulation Tests
FM Imput Sensitivity Procedure
(Wide FM Mode)
Lower Limit Measured Value Upper Limit
Set F1 to 5.0 GHz
Record the M deviation displayed on the 68287B/68387B
..............
_______rad
Calculate and record the M accuracy
...............
93.7% _________ % 106.3%
FM Imput Sensitivity Procedure
(Narrow FM Mode)
Set F1 to 5.0 GHz
Record the M deviation displayed on the 68287B/68387B
..............
_______rad
Calculate and record the M accuracy
...............
93.7% _________ % 106.3%