Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: An kafa Kwamitin Tsarin Talabijin na Kasa a 1940 ta Hukumar Sadarwa ta Tarayyar Amurka (FCC) don warware rikice-rikice tsakanin kamfanoni kan gabatar da tsarin talabijin na analog na kasa a Amurka. A watan Maris na 1941, kwamitin ya ba da ƙa'idar fasaha don talabijin baƙar fata da fari wanda aka gina a kan shawarar da aka bayar a 1936 ta Radio Manufacturers Association (RMA). Ci gaban fasaha na fasahar gefen gefen gefen ya ba da damar damar haɓaka ƙudurin hoto. NTSC ta zaɓi layin bincike 525 a matsayin sulhu tsakanin daidaitaccen layin bincike na 441 na RCA (wanda aka riga aka yi amfani da shi ta hanyar gidan talabijin na NBC na RCA) da kuma sha'awar Philco da DuMont don ƙara yawan layin bincike zuwa tsakanin 605 da 800. Ka'idar ta ba da shawarar saurin firam na firam 30 (hotuna) a kowane dakika, wanda ya ƙunshi filaye biyu da aka haɗa a kowane firam a layi 262.5 a kowane fanni da filaye 60 a kowane dakika. Sauran ka'idoji a cikin shawarwarin ƙarshe sun kasance yanayin yanayin 4: 3, da kuma sauye-sauye (FM) don siginar sauti (wanda ya kasance sabon abu a lokacin).  Tambaya: Wane mizani aka ba da shawarar don siginar sauti?
sauyawar mitar (FM)