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3257 HD Series User’s Manual No: UM-3257-D2

Page 12

3.8 External 4.5Mhz Audio Sub-Carrier

The 3257 Series also includes an option for transmitting video, audio and a 4.5 MHz audio

sub-carrier as an external signal. The figure below depicts the 3257 set up with video, 4

channels of Baseband audio and an external audio sub-carrier channel. The audio sub-carrier

channel uses a BNC connector with 75 ohm impedance.

+ I + I

AudioVideo

Audio SC

Video I/O

BNC

75 Ohm

Baseband Audio I/O

External Audio Sub-Carrier I/O

BNC Connector

75 Ohm

1 2 ... 9 10 11 12 13 14 15 16

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