AM Demod

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Generalized AM demodulation hierarchical block with audio filtering.

This block demodulates a band-limited, complex down-converted AM channel into the the original baseband signal, applying low pass filtering to the audio output. It produces a float stream in the range [-1.0, +1.0].

Note: The AM Demod block is the same as a Complex to Mag block feeding an Add Const block feeding a Low Pass Filter. See Complex_to_Mag#Example_Flowgraph.


(R): Run-time adjustable

Channel rate
Incoming sample rate of the AM baseband
Audio decimation
Input to output decimation rate
Audio pass
Audio low pass filter passband frequency
Audio stop
Audio low pass filter stop frequency

Example Flowgraph[edit]

This flowgraph shows the use of an AM Demod block to implement an AM broadcast receiver.

FunCube AM.png

Source Files[edit]

Python file
Block definition