04-15-2019, 02:10 PM
I have a question.
I really don't understand well, the workings of the tuner section of a radio, so I'm not sure my question is even at all important.
But anyways here goes :
What is the significance of the changes to intermediate frequencies during the 30s?
My research reveals it started out at 460kHz, then went to 470 kHz in 1937, . . . stayed there for a few years. Then it dropped to 455kHz in 1940, where it stayed for the remainder of AM broadcast history.
I really don't understand well, the workings of the tuner section of a radio, so I'm not sure my question is even at all important.
But anyways here goes :
What is the significance of the changes to intermediate frequencies during the 30s?
My research reveals it started out at 460kHz, then went to 470 kHz in 1937, . . . stayed there for a few years. Then it dropped to 455kHz in 1940, where it stayed for the remainder of AM broadcast history.
