Specifications

General Operation
VTM Series Installation and Operation Handbook
3-10
Table 3-4. Video Formats and Units of Measure
Video Format Unit of Measure
High Definition and Standard
Definition 525 and 625
Volts or Percent (Selectable)
Composite or Standard
Definition 525 displayed as
composite (NTSC)
IRE
Composite or Standard
Definition 625 displayed as
composite (PAL)
Units or Volts (Selectable)
Table 3-5. Video Formats and Critical Amplitude Limits
Video Format Critical Amplitude Limits
High Definition and
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
Standard Definition 525
as Composite (NTSC)
7.5 IRE – black level
A waveform display is shown in Figure 3-6 and described in Table 3-6. The figure
shows the location for the various waveform display fields.
Figure 3-6. Waveform Display Diagram