CCIR System N is an analog broadcast television system introduced in 1951 and adopted by Argentina, Paraguay and Uruguay, paired with the PAL color system (PAL-N) since 1980.[1][2][3] It was also used briefly in Brazil and Venezuela.
It employs the 625 line/50 field per second waveform of CCIR Systems B/G, D/K, and I, but on a 6 MHz channel with a chrominance subcarrier frequency of 3.582056 MHz[2][4][5] (similar to NTSC).
The general System N specifications are listed below.[6][4]
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