Reference; Waveform Graticule; Figure 3- 1: Ntsc Waveform Graticule - Tektronix WFM90D User Manual

Reference

This section explains how to take measurements with the WFM90D
and WFM91D.

Waveform Graticule

There are two versions of the Waveform display mode graticule,
illustrated in Figure 3- - 1 and Figure 3- - 2:
H NTSC/525 composite video graticule (WFM90D only)
H PAL/625 composite video graticule (WFM91D only)
100
80
60
40
20
0
- -20
- -40

Figure 3- 1: NTSC waveform graticule

WFM90D and WFM91D User Manual
100% White
level
7.5 IRE
Setup
Baseline
Sync tip
3- 1