On Mon, Jun 26, 2017 at 10:07 AM, Brashendeavours <brashendeavo...@gmail.com
> wrote:

> Where my results differ from what I expect, is approximately above 100Hz.
> Using an baseband of 1200Hz, I no longer get a signal sweeping from -ive to
> +ive, I get [a constant frequency of 1200Hz on the waterfall](
> http://imgur.com/BqGsRtK), and aliased multiples.
>
> I believe that my sample frequency of 48000 is sufficient as my mf is
> 2400, and baseband is 1200.
>
> BW is (2 * (1200 + 2400)) = 7200Hz
> Nyquist is 2*BW = 14400Hz
>
> So, what am I doing wrong?  Thanks in advance!
>

You're not doing anything wrong, and those are not aliases. They are the
sidebands which result from frequency modulation.
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