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Use of the Agilent 11668A, placed after the Agilent 11668B, reduces the modulator drive feedthrough from 8 mV to 1 mV and prevents possible amplifier saturation. Use of the Agilent 11668A filter is not necessary for passive measurements since the feedthrough from the Agilent 11665B is -65 dBm and causes no degradation in system performance.
Model No
11668A
Condition
Used
Manufacturer
Agilent
Type
High Pass