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A-14 682XXB/683XXB MM
TEST MODEL
RECORD 68237B/68337B
3-15 Pulse Modulation Test: Video Feedthrough
Test Procedure
Lower Limit Measured Value Upper Limit
Set F1 to 5.0 GHz
Set pulse width W1 to 5.0 s
Set PRI (period) to 0.01 ms
Measure and record the Video Feedthrough voltage spikes
....
–10 mV _______ mV +10 mV
3-16 Pulse Modulation Test: RF On/Off Ratio
Test Procedure
Lower Limit Measured Value Upper Limit
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 68237B/68337B
..............
_______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 68237B/68337B
..............
_______rad
Calculate and record the M accuracy
...............
93.7% _________ % 106.3%