PAL
![Television encoding systems by nation; countries now using (and once using) the PAL system are shown in blue.](/Images/godic/202502/02/PAL-NTSC-SECAM.svg3114.png")
![Spectrum of a System I television channel with PAL.](/Images/godic/202502/02/Pal_channel.svg3114.png")
![RF Spectrogram and Waterfall of an actual PAL-I transmission with NICAM.](/Images/godic/202502/02/PAL-I3114.png")
![Oscillogram of composite PAL signal—one frame.](/Images/godic/202502/02/PAL_picture3114.png")
Phase Alternating Line (PAL) is a colour encoding system for analogue television used in broadcast television systems in most countries broadcasting at 625-line / 50 field (25 frame) per second (576i). Other common colour encoding systems are NTSC and SECAM.