Re: [Discuss-gnuradio] Frequency modulation in GRC

[jason sam]

Another question related to my flowgraph  that when i use the' Frequency Mod' block...then it will take the center frequency as 50Hz(the freq of the signal coming in)??

On Fri, May 23, 2014 at 1:28 PM, Ron Economos <address@hidden> wrote:

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..

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