The TE94 consists of 9 sector stars of 90 (black and white) sectors each. The diameter of the unresolved middle and the outer diameter are marked by circles. A further marking circle is positioned within each sector star.
The circles are marking the following resolutions:
outer circle : 200 TV lines
middle circle: 400 TV lines
inner circle: 800 TV lines
The chart serves for checking resolution over the whole picture area.
