|Subject:||Re: [Discuss-gnuradio] Works with GR 3.6, breaks with 3.7|
|Date:||Fri, 17 Oct 2014 07:35:33 -0700|
Thanks for looking into it! To be honest, I am not really good at RF. I based my code off the python code in gr-smartnet. The fsk-demod python file is here: https://github.com/bistromath/gr-smartnet/blob/master/src/python/fsk_demod.pyIt is quite possible that it just happened to work because of an error that got patched in Gr 3.7.Are there some good examples for GMSK/FSK demodulation that I could borrow from instead?Recreating this in GRC sounds like a great idea so I can scope along the way. I will give that a try next.Thanks again for the pointers, fresh eyes are really helpful when you have been staring at it for so long.- LukeOn Fri, Oct 17, 2014 at 8:18 AM, Martin Braun <address@hidden> wrote:On 10/17/2014 08:28 AM, John Malsbury wrote:
> Also also, is the Band-Edge FLL ideal for GMSK? My possibly, incorrect
> understanding of that block is that it was more ideal for PAM with
> common RRC.
For the record: It might work coincidentally because of the rolloff-y
shape of GMSK, but it's derived for and designed for common PAM/RRC, as
John says and I wouldn't recommend it for anything else.
To look up the math, I suggest Harris' works.
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