Re: [Discuss-gnuradio] Frequency modulation in GRC

[Ron Economos]

I was experimenting with this the other day. I used
the wide band FM modulator instead, since the
deviation can be set. Here's the flow graph.

http://www.w6rz.net/fmtest.grc

The test audio files. sine01.wav is 0.1 Hz and
sine15k.wav is 15000 Hz.

http://www.w6rz.net/sine01.wav

http://www.w6rz.net/sine15k.wav

Some C code to generate audio files at other frequencies.

http://www.w6rz.net/sine.c

Ron


On 5/22/2014 9:26 PM, jason sam wrote:
> Hi,
> I have made the flowgraph as attached..It is showing the modulation in 
> scope but in fft block it's continuously changing  so I am still 
> unable to find out that what are the max and min frequencies??I know 
> how to find that in theory but i want to prove it from my results..