CCIR System N
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 since 1980.
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.