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Re: [Discuss-gnuradio] AM transmitter

From: Wayne Roberts
Subject: Re: [Discuss-gnuradio] AM transmitter
Date: Wed, 9 Oct 2013 17:09:11 +0900

Assuming you mean analog AM transmitter, you use a float-to-complex, connect a constant source with value of 1 to IM input.
Then the audio source connects to RE input.

You will need an adjustable attenuator on the complex output before going to the sink device.
Using a multiply const with slider, adjust while monitoring the audio quality on AM receiver because it can easily overdrive.

You could also have issue with DC offset (IQ calibration) on sink.  In that case you would need to use a multiply block to offset frequency on  baseband.

On Wed, Oct 9, 2013 at 12:21 AM, Bijendra Singh <address@hidden> wrote:
I'm new user of GNU. Can someone please help me in creating a flowgraph of AM transmitter. I have to use it for communication of radio having a range 3-30 MHz. Receiver part is already done. I just wanted a waveform of transmitter part only. I have to integrate this waveform with FM receiver. Please help.

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