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Radio Record, Volume III, Issue 39, 11 April 1930, Page 25

JNTERFERENCE ean often be lessend by using a different earth. THH true cause of fading is atmospherie variations at a great distance from the surface of the earth, and consequently variations in the strength of a local station’s transmission are not properly described as fadHOw .ine is usually due to one of the batteries running down, to the use of a too big reaction coil, to bad spacing of components or wiring, or to | the use of an unsuitable grid leak, . fixed condenser, or battery elimmator,