បញ្ជីប៉ុស្តិ៍ទូរទស្សន៍ ISDB-T របស់ជប៉ុន

Terrestrial digital television in Japan is also called 地上波. All TV boxes that go to Japan require a b-cas card. If you do not have a b-cas card, the TV picture is 720P. On a small screen such as a car TV or mobile phone, the 720P TV picture can still be received. If a b-cas card is inserted, the TV picture is 1080P, បើមិនដូច្នេះទេ, the picture will be blurry and jagged on an HDMI monitor or a large TV.