Specifications

75Ω. In multiple- unit operation, the input of units after the first is connected to the output of the
preceding unit.
Output - Composite output to microwave or satellite transmitter. In multiple unit
operation, the output of all but the last unit connects to the input of subsequent units.
Receiver:
Input - Composite input from microwave or satellite receiver. In multiple-unit operation, the
input of units after the first is connected to the output of the preceding unit.
Output - Video output to monitor or video receiving equipment. If video is not used, this port
should be terminated with 75Ω. In multiple unit operation, the output of all but the last unit
connects to the input of subsequent units.
2-12. COMPOSITE/STEREO/SAP/PRO/MONITOR CONNECTIONS.
These connections are BNC connectors on the rear of the shelf. A detailed description of the
connections are:
Transmitter:
BTSC Composite - InThis 75Ω input is designed to accept the output of a BTSC composite
generator which has built-in SAP and PRO channel generators, or which provides combining
inputs for separate generators. The 100% modulation level for this input is 1V RMS (2.8V
p-p). If this input is used, the alternate inputs listed below should not be used.
Stereo Input - This 75Ω input is designed to accept the output of a BTSC stereo generator
which does not have built-in SAP and PRO channel generators or which does not have
combining inputs for separate generators. The 100% modulation level for this input is 1V RMS
(2.8V p-p).
SAP Input - This 75Ω input is designed to accept the output of a separate SAP Channel
generator. The 100% modulation level for this input is 1V RMS (2.8V p-p).
PRO Input - This 75Ω input is designed to accept the output of a separate Professional
Channel generator. The 100% modulation level for this input is 1V RMS (2.8V p-p).
455 Operation Manual Page 15 6/23/98