Sheppard Cares. Sheppard AFB provides a wide variety of services to support Airmen and their families. To learn what's happening this month, check out the Sheppard Community Board. To quickly find and register for classes available on base, click the Leadership Pathways logo to the right.
NTSC stands for National Television Standards Committee. PAL stands for Phase Alternating Line. NTSC is the standard broadcast format in the United States, while PAL is the standard broadcast format in Europe, Australia, and parts of Asia.
Other differences are found in the resolution and frequency of the signal. NTSC uses 525 scan lines, of which 486 are visible. NTSC also uses 29.97 interlaced FPS or frames per second, this is done on a signal with frequency of ~60Hz. PAL on the other hand does not set exact format for these things in its specifications, although it uses a pretty standard format. PAL most commonly has 625 scan lines, of which 576 are visible.