Videotek VTM-2000 - Figure 3-6. Waveform Display Diagram; Table 3-5. Video Formats and Units of Measure; Table 3-6. Video Formats and Critical Amplitude Limits

General Operation
VTM-2000 Installation and Operation Handbook
3-8
Table 3-5. Video Formats and Units of Measure
Video Format Unit of Measure
Standard Definition 525 and 625
Volts or Percent (Selectable)
Composite (NTSC)
IRE
Composite (PAL)
Units or Volts (Selectable)
Table 3-6. Video Formats and Critical Amplitude Limits
Video Format Critical Amplitude Limits
Standard Definition
 0.6125 V = upper 75% chroma limit
 0.525 V = 75% luminance limit
 0.350 V = 50% point; black for color difference
channels
 0.0875 V = lower 75% chroma limit
Composite (NTSC)
 7.5 IRE – black level
 78 IRE – flesh tone
A waveform display is shown in Figure 3-6 and described in Table 3-7. The figure
shows the location for the various waveform display fields.
Figure 3-6. Waveform Display Diagram