|
Brazil did indeed use 525 line 30 field for monochrome. I think with standard US channel spacings. So the obvious route to colour would have been NTSC but they decided, for reasons I don't know, to use PAL. At the time PAL gave freedom from various colour errors and was seen as superior to NTSC. PAL-M is a properly engineered 525 line PAL system. In practice all studios worked in NTSC, with transcoding to PAL-M for transmission.
The situation in Argentina was different. They had 625/50 monochrome but with US channel spacings. Can't use normal PAL or SECAM as a result. So they used PAL-N, a special version of PAL with a lower subcarrier frequency. Studios all worked in PAL-B and the output was transcoded for transmission.
|