Description: Frequency Modulation (FM), FSK, MSK and more
Great tutorial. I’m trying to understand more with this tutorial. Can you explain a little further how you got equation 14 (Maybe, I need to find out where Ref. 1 is) and I don’t see how you substituted those equations into equation 13 to get equation 15.
Also, I’m having a hard time understanding how you got modulation index of 15 on page 12 with the FM signal FCC example. How you got 5 to be the denominator?
In Fig. 6, the integrator and differentiator blocks are reversed. The description above is correct. The description in the caption matches the figure which is incorrect.
Thanks for your great tutorial. I jusy have one question. I want to implement baseband FM with output of I and Q. How can I do this? I want to implement Stereo FM transmitter. If I use FSK, Do the analog receivers able to demod it?
FSK is a digital modulation. Not sure what you mean by analog receiver.
If the receiver is setup for FSK then I don’t see any problem getting out the I and Q channels.
Hi. Thanks for reply. I mean I want to design digital stereo FM for broadcasting. Analog receiver I mean radio of the car which I know they are are not support FSK. So if I want to implement conventional FM with I and Q output what can I do? If you know any references please let me know.
I am grateful to you for all tutorials that I advise always to my colleagues.
It is art of disclosure, also my passion.
A question: I find few literature related to Costas Loop;
I did some tests circuits FPGA based, do you know tutorial or application notes
for better knowledge?
Thanks in advance
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