Re: FM Transmission with a vector of bits

[Kevin McQuiggin]

Hi Anthony:

Check out this link.  The author is using a Pluto but he developed a flowgraph 
to transmit a vector that represents Morse code.  Pretty well-explained.  The 
ideas you need are likely in there.

Kevin


> On Jul 2, 2020, at 8:40 AM, Anthony B. <anthonyld508@gmail.com> wrote:
> 
> Hello all,
> 
> I am trying to build a very simple FM Transmitter using a flowgraph as a 
> reference. The principle is the following :
> Signal source of 48 kHz Sample Rate >  Rational Resampler up to 360 kHz 
> Sample Rate > Add Constant 1 > VCO at 360 kHz with a carrier frequency at 120 
> kHz.
> 
> What I am trying to do right now is to replace the signal source with a 
> vector of bits coming from another application to then modulate it with FM.
> I've seen many examples of this kind of transmitter with audio input, but I 
> don't understand how to pass it a vector of bits and to get the expected 
> result.
> Is there something I should consider before going to the VCO ? Is the 
> principle only working with periodic signals as input ?
> 
> Thanks for your help!
> 
> Anthony

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