A
grid structure consisting of 23 horizontal and 35 vertical lines is
arranged on a white background. 3 grid lines each divide the outer 3
grid rows in the middle. The width of the grid lines is 0.15% of the
picture width. The large circular line has a diameter of 83 1/3% of the
picture height, the 5 small circular lines have a diameter of 25% of
the picture height.
4
resolution wedges are arranged in the large circle at angles of
0°, 45°, 90°, and 135° corresponding to
signal frequencies of 2-10 MHz. (The marking ends at 8 MHz and 600
lines).
- The
test chart is designed for operational adjustment and control of TV
cameras.
- The
circles permit rough visual appraisal of scan linearity.
- The
grid lines serve the purpose of adjusting registration.
- The
wedges serve the purpose of resolution appraisal.