Re: [Discuss-gnuradio] CPFSK mod/demod + strange behavior

[Olivier Goyette]

My flowgraph is based on what I've read throughout the different forums on the internet because :

1- I'm a newbie to GRC and GNUradio in general

2- It's my first time trying to develop a telecomm application

3- I'm using a RRC filter because it's a requirement stated in the documentation I have about UAT.

Take a look at the references I joined. Those are every links I've been through trying to understand what is FSK and all the process behind.

Maybe you will be able to tell me what' wrong ?!

2016-06-09 15:04 GMT-04:00 Achilleas Anastasopoulos <address@hidden>:

Why are you using the RRC filters?

I hope you are realizing that filtering a CPFSK signal is not the same as filtering its instantaneous frequency (which is a PAM signal with rectangular pulses).

As a result, the next question is why in your poly-phase filter you are using RRC filter taps?

Achilleas

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