If you’re after a robust signal in challenging terrain, you’re better leaving that stereo light off. In reality, you’re more likely to see transmissions deliberately in mono. As you can guess, it means we can be a little sneaky and turn the light on without actually broadcasting in stereo. It’s used to indicate that there’s a stereo transmission and turns on that little red light on your radio. Not bad as a fallback option really.Īt 19kHz is a steady tone called the “pilot tone”. This is the bit that survives best when you’re struggling from poor reception. A capture of the baseband multiplexed signal for FM transmission.īetween 0 and 15kHz you get the mono audio mix, that’s left and right combined into one.
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