Tektronix WFM 601i, User Manual

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Glossary
Glossary–4
WFM 601i Serial Component Monitor
result. Video is a 75
Ω
system, so a 75
Ω
terminator must be put at the end of the
signal path.
U The B–Y signal after a weighting factor of 0.493 has been applied. The
weighting is necessary to reduce peak modulation in the composite signal.
V
The R–Y signal after a weighting factor of 0.877 has been applied. The
weighting is necessary to reduce peak modulation in the composite signal.
Vectorscope
A specialized oscilloscope which demodulates the video signal
and presents a display of R–Y versus B–Y in NTSC systems (or V versus U in
PAL systems). The angle and magnitude of the displayed vectors are respectively
related to hue and saturation.
Vertical Interval
The synchronizing information which appears between fields
and signals the picture monitor to go back to the top of the screen to begin
another vertical scan.
Waveform Monitor A specialized oscilloscope that plots voltage versus time
to evaluate television signals.
Y
Abbreviation for luminance.