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.
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 (similar to NTSC).
Specifications The general System N specifications are listed below:Reference Data for Radio Engineers, ITT Howard W.Sams Co., New York, 1977, section 30
Frame rate: 25 Hz Interlace: 2/1 Field rate: 50 Hz Lines/frame: 625 Line rate: 15.625 kHz Visual bandwidth: 4.2 MHz Vision modulation: Negative Preemphasis: 75 μs Sound modulation: FM Sound offset: +4.5 MHz Channel bandwidth: 6 MHz
See also PAL PAL-N Broadcast television systems Multichannel Television Sound Pan-American television frequencies
Notes and references
External links World Analogue Television Standards and Waveforms