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S7200 TV Signal Analyzer Operation Manual
Figure 6-28 8VSB Diagram
Figure 6-29 Decreased signal quality, eye diagram gradually closed
In the US, the FCC has specified different emission masks for different types of 8-
VSB DTV transmitters. One mask is specified for Full Service digital transmitters.
Two other masks are specified for digital LPTV (Low-Power Television) transmitters,
Class A digital transmitters and digital TV translators; one mask is termed "Simple"
and the other "Stringent". The conditions imposed by the licensing process and
the FCC's regulations should be consulted to determine which mask is appropriate
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