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Does ATSC/NTSC work the same way as DVB-T/PAL with regards to signal quality at the same DB?
by salamandersauce 5y ago
Does ATSC/NTSC work the same way as DVB-T/PAL with regards to signal quality at the same DB?
- yholio 5y agoThey are built upon the same basic principles - QAM modulation, error correcting codes and MPEG/HEVC codecs, so there should be no significant difference. The newest ATSC3.0 standard has a somewhat richer toolbox allowing the optional use of 1024 or 4096QAM vs 256QAM for DVB, more advanced LDPC error correcting codes, LDM multiplexing and MIMO. The industry seems to believe the added complexity is not worth the marginal benefits. The fundamental difference between Europe (or at least UK) and US seems to be the concern regulators had for improving over the air TV. So while in the UK, the move to digital was employed to broadly improve the offering and reception quality, in the US there was less concern and the stations found the death of analog a good opportunity to close down transmitters, recover spectrum and remove free programing.