46 Chapter 2 Testing Video DisplaysUpon selecting a format, you can modify the format options and settings if necessary. Forinstructions on this, see “Configuring format parameters” on page 153.Understanding the format libraryThe 882 has several built-in formats to test a broad range of display types. These formatsare grouped in the following categories:• Component standard definition television formats• Component high definition television formats• Computer display formats• Military and medical display formats• Miscellaneous formatsNote: A summary of the format naming conventions is provided in this section. For adetailed description of the naming conventions, see “Format library” on page 147.Component standard definition television formatsComponent SDTV formats are applicable in the case of RGB and YPbPr. These formatsare named by their vertical resolution, scanning method, and frame rate. The initialcharacters indicating the resolution are followed by the scanning method. The twocharacters following the scanning method indicate the frame rate. A typical example of acomponent standard definition TV video format is:• 480i2x30 (for a vertical resolution of 480 pixels with interlaced scanning and a 30 Hzframe refresh rate; 2x indicates that the pixels are double-clocked for DVIcompatibility).Component high definition television formatsComponent high definition television formats, like the standard definition televisionformats, are named by their vertical resolution, scanning method, and frame rate. Theseformats are applicable in the case of RGB, YPbPr, and YCbCr. These initial charactersindicating the resolution are followed by the scanning method. The two charactersfollowing the scanning method indicate the frame rate. A typical example of a componenthigh definition TV video format is:• 1080i30 (for a vertical resolution of 1080 active vertical lines with interlaced scanningand a 30 Hz frame refresh rate).Computer display formatsComputer display formats are assumed to use progressive scanning. Computer displayformat names consist of four blocks. The initial three characters indicate the vendor IDusing the EISA ID (for example, IBM, SUN, and VSC) or the standard body or acronym(for example, SMT, DMT, GTF, CEA, and EIA). The next two characters provide the firsttwo digits of the horizontal resolution in pixels. Following the horizontal resolution are two
