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271
Getting Started Manual
set the levels to produce five monochrome stripes from left
to right: grey, white, grey, black and grey again.
In the instrument the number of horizontal points which
make up the complete waveform is 1024, so the horizontal
steps must be scaled to the range 0-1023.
Similarly, the full-scale signal amplitude is defined by
values up to +511, so the vertical amplitudes must be
scaled to to the range 0-511.
20
Our line signal thus looks like the drawing below:
Figure 2. 625-line PAL TV Signal
We can produce a table of all nine steps of the waveform
(numbered 0 to 8), as follows:
shx0019f.gif
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