DON'T TWIDDLE

Radio Record, Volume I, Issue 4, 12 August 1927, Page 14

DON'T TWIDDLE

FANI)S OF[ THI DIAIS.

Many listeners attempt to retune their set when one programme number gives way to another. ‘They notice a decline in volume and assume thit the set needs adjustinent. If the dials are not turned, the volume control is adjusted, or perhaps both are tinkered with, on the assumption that this is necessary. Nearly always there is no occasion for touching the set. The volume change is due entirely to conditions at the broadcasting station. Perhaps a soprano has just given way to a brass band. The operator in the control room of the station takes care of the volume by adjusting resistances connected with the speech amplificr-an andio channel used for regulating the amplificaticst of everything broadcast. A different adjustment is necded for a band than for a soprano, and it may take a few moments before the tratsmitter is properly scitled for the new conditions, Therefore; when a station seems te be suffering from an odd form of fading at the time of programme chanse keep in mind the probable cause and let your receiver alone. No attempt should be made at readjustment until a few minutes haye clapsed