Outband Descrambler

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This circuit consists of an amplifier for the synch channel and a video detector which controls an attenuator so that the gain of the systems is increased during synch intervals. For the outband decoder to work, the cable company must provide at least a 1 millivolt signal. Values for C1-C5 and L1-L4 are found in Table 1.

Table 1

50Mhz90-114Mhz
C15pf5pf
C247pf12pf
C3200pf82pf
C456pf12pf
C556pf10pf
L10.2mH0.2mH
L20.05mH0.03mH
L30.175mH0.2mH
L40.175mH0.24mH

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Outband Descrambler - Circuitos de Electronica

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