Double sideband suppressed carrier

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This article has been tagged since September 2006.

This is used for RDS (radio data system) due to the fact that it is difficult to decouple.

Spectrum

This is basically an amplitude modulation wave without the carrier therefore reducing power wastage, giving it a 50% efficiency rate.

Image:Spectrum DSBSC.jpg

Generation

DSBSC is genereated by a mixer. This consists of an audio source combined with the frequency carrier.

Image:DSBSC mixer2.jpg

Demodulation

For demodulation the audio frequency and the carrier frequency must be exact otherwise we get distortion.

Image:Distortion.jpg

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