Telefunken FuBK

The Telefunken FuBK[1] (from the German Funkbetriebskommission for "Television Service Commission") is an electronic analogue television test card developed by AEG-Telefunken and Bosch Fernseh in West Germany as the successor to the monochrome T05 test card in the late-1960s[2] and used with analogue 625-lines PAL broadcasts.

[11] Some elements present on the FuBK test card are:[12][4] On PAL broadcasts, with a maximum displayable video bandwidth of around 5 MHz, individual lines should just be visible in all Multiburst gratings.

If not, colour will be seen on these areas,[4] as shown in the off-air screen capture of ARD Das Erste test card, visible on the "Usage Gallery" at the end of this article.

In the 1990s, a FuBK variant in the 16:9 aspect ratio format was developed for the PALplus and (HD-)MAC standards and was used by some channels such as ARD.

[40][41] Crosshatch was changed to a 25x15 grid, and geometric markings for the central 4:3 safe area were included, with the other details being generally the same as on the original version.