NTSC yakasarudza mitsara ye525 yekuongorora semukana wekuwedzera resolution yemufananidzo. NTSC yakasarudza mitsara ye525 yekuongorora sechinhu pakati peRCA's 441-scan line standard (yatove ichishandiswa neRCA's NBC TV network) uye Philco's uye DuMont's chido chekuwedzera nhamba yemitsara yekuongorora kusvika pakati pe605 ne800 yakakurudzirwa.
frequency modulation (FM)