Philips PM5540
![](http://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Phillips_PM5540.jpg/220px-Phillips_PM5540.jpg)
The Philips PM5540 is a monochrome test pattern generator[3] that could be considered a black & white predecessor of the widely used Philips PM5544 test pattern. It has been used in Australia, Abu Dhabi, Denmark,[4] Israel,[5] Qatar and the Netherlands.[6][7][8][9] A heavily modified version of the PM5540 test card was used by Sjónvarpið of Iceland from 1966 until 1982, and the latter test card was also used by some regional broadcasters of the German public broadcasting corporation ARD (such as Süddeutscher Rundfunk and Sender Freies Berlin) as well as by the national German public broadcaster ZDF.[10]
Some features of the main test card:[11][3]
- Background - grid of 14 x 10 squares, each square with a white border 2 raster lines thick;
- Black and white squares - around the borders, with the four corners being white
- Circle - has a diameter of 440 scan lines;
- Definition lines - gratings corresponding to 0.8, 1.8, 2.8, 3.8 and 4.8 MHz, allowing measurement of image bandwidth and associated horizontal resolution
- Staircase - grayscale linear gradation in 5 steps
- Background - uniform 50% lightness gray background
- Needle pulse - white pulse on black background
Besides the main "Complete Pattern", the hardware was capable of generating other patterns named as "Crossed Lines", "Black/White Steps", "Definition Lines", "Sawtooth", "Vertical Bars" and "Blank Pattern".[3][12][11]
References[]
- ^ https://plus.google.com/photos/110075467441072153682/albums/5720743420927143969
- ^ "FMTVDX". www.fmtvdx.eu.
- ^ a b c http://www.frank.mif.pg.gda.pl/other/sos/Philips_TV-MeasuringEquipment_1980.pdf[bare URL PDF]
- ^ http://www.pembers.freeserve.co.uk/Test-Cards/Non-UK.html#Denmark Archived 2012-06-07 at the Wayback Machine. Retrieved 2011-07-05.
- ^ "Video". www.youtube.com. Retrieved 2020-07-23.
- ^ "Netherlands". March 23, 2015 – via Flickr.
- ^ http://www.pembers.freeserve.co.uk/Test-Cards/Non-UK.html#Netherlands Archived 2012-06-07 at the Wayback Machine. Retrieved 2011-07-05.
- ^ "Analoge Televisie is gestopt Stukje geschiedenis". www.radio-tv-nederland.nl.
- ^ 1981 • Nederland 1/2 • Mire N&B. YouTube. Archived from the original on 2021-12-08.
- ^ "Radio Bulletin 1972 | Europrse testbeelden". www.fmtvdx.eu.
- ^ a b https://frank.pocnet.net/instruments/Philips/PM5540/PM5540.pdf[bare URL PDF]
- ^ "PM5540". frank.pocnet.net.
External links[]
- Test cards
- Broadcast engineering
- Television technology stubs