Analog TV systems global map, with System N in orange.

CCIR System N is an analog broadcast television system introduced in 1951 and adopted by Argentina, Paraguay and Uruguay (since 1980), paired with the PAL color system (PAL-N).[1][2][3] It was also used briefly in Brazil and Venezuela.

It employs the 625 line/50 field per second waveform of PAL-B/G, D/K, H, and I, but on a 6 MHz channel with a chrominance subcarrier frequency of 3.582056 MHz[2][4][5] (very similar to NTSC). On the studio production level, standard PAL cameras and equipment were used, with the signal then transcoded to PAL-N for broadcast.[2] This allows 625-line, 50-frame/s video to be broadcast in a 6-MHz channel, at some cost in horizontal resolution.

Specifications

The general System N specifications are listed below.[6][4]

Plan showing VHF frequency ranges for ITU Systems

See also

Notes and references

  1. ↑ Sony Corporation (2014). "Help Guide | On TV color systems". www.sony-asia.com.
  2. 1 2 3 Iazbec; Soria; Tulli; Gonzalez (1999). Estudio de las tecnicas de transcodificacion de señales de television PAL-B / PAL-N (in Spanish). Vol. 10. Centro de Informacion Tecnologica. pp. 341–349.
  3. ↑ Trappe, Raffael Amadeus (2005). "Worldwide TV Systems (NTSC, PAL, and SECAM)". Paradiso-Design. Retrieved 2023-11-05.
  4. 1 2 Pemberton, Alan (August 30, 2012). "World Analogue Television Standards and Waveforms - CCIR Transmission Systems". Pembers' Ponderings. Archived from the original on 2012-08-30.
  5. ↑ RECOMMENDATION ITU-R BT.470-6 -CONVENTIONAL TELEVISION SYSTEMS (PDF). ITU-R. 1998.
  6. ↑ Reference Data for Radio Engineers, ITT Howard W.Sams Co., New York, 1977, section 30
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