PAL (Phase Alternating Line) is a color encoding system used in analog television broadcasting and video surveillance. Developed in Germany in the 1960s, PAL became the standard format for video in many parts of the world, including Europe, Asia, Australia, and parts of Africa. It is one of the three major analog video standards, alongside NTSC and SECAM.
Key Features of PAL:
-
Frame Rate: 25 frames per second (fps)
-
Resolution: 720 x 576 pixels for standard definition
-
Power Frequency Compatibility: Matches 50Hz power systems
-
Color Stability: Better color consistency than NTSC
-
Phase Alternation: Reduces chrominance errors, improving color fidelity
Conclusion:
While digital formats are now dominant, PAL remains relevant in legacy and hybrid CCTV systems. Professionals working with international video equipment or upgrading older security infrastructure should be familiar with PAL to ensure compatibility and effective video output.