Справочник Пользователя для Anritsu 683XXB
682XXB/683XXB MM
A-67/A-68
TEST
MODEL
RECORD
68253B/68353B
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
Set pulse width W1 to 5.0
m
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.) .
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
F
M Imput Sensitivity Procedure
(Wide
F
M Mode)
Lower Limit
Measured Value
Upper Limit
Set F1 to 5.0 GHz
Record the
F
M deviation displayed on the 68253B/68353B . . . . . . . . . . . . . .
_______rad
Calculate and record the
F
M accuracy . . . . . . . . . . . . . . .
93.7%
_________ %
106.3%
F
M Imput Sensitivity Procedure
(Narrow
F
M Mode)
Set F1 to 5.0 GHz
Record the
F
M deviation displayed on the 68253B/68353B . . . . . . . . . . . . . .
_______rad
Calculate and record the
F
M accuracy . . . . . . . . . . . . . . .
93.7%
_________ %
106.3%