01771nam 2200349 450 99657525330331620231213215232.01-5044-0469-6(CKB)4100000011992800(NjHacI)994100000011992800(EXLCZ)99410000001199280020231213d2021 uy 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierC16.31-1959 ASA American Standard Method of Measurement of Television Luminance Signal Levels /Institute of Electrical and Electronics EngineersNew York, NY, USA :IEEE,2021.1 online resource (8 pages)This Standard is a revision of Part 1 of Standard 50 IRE 23. SI and replaces in all respects this previously issued part of the Standard. The need for the revision stems from the standardization of color television signals in the USA, and the inadequacy of the earlier Standard in providing methods of measuring the luminance component of the color signal. The revision consists primarily of a change in the response characteristics of the oscilloscopes to insure adequate suppression of the color subcarrier. Other minor changes in wording and in the associated figures have been made to bring the standard into accord with present terminology and practice.TelevisionReceivers and receptionTelevisionTransmitters and transmissionTelevisionReceivers and reception.TelevisionTransmitters and transmission.621.388NjHacINjHaclDOCUMENT996575253303316C16.31-19593882054UNISA