Re: [Discuss-gnuradio] Modulation order of FSK

Really quickly, I need to get going:
with unpacked-to-packed (or vice versa) you can convert your bit stream
to integers between 0 and 3. Convert to float, subtract 1.5, use with
frequency modulator?

Best regards,
Marcus
On Wed, 2019-03-06 at 18:14 +0300, Batu Kaplan wrote:
> Hello, Marcus.
> First of all, I'm very grateful for your answer. But how I can make a
> connection between the bits and the "baseband frequency values" that
> you mentioned in the mail?
> For example, I have a 000110 bit series for 4FSK. And then, I think I
> need to pack into 2 bits like 00-01-10. But then how can I turn the
> bits to appropriate form for implement the frequency modulation
> block? After that, am I going to apply to the frequency modulation
> block for each group of symbols? Can you share a flow chart for
> understand better? like file txt ---> packed --->frequency mod ---->
> sink.
>
> Yours sincerely.
> -Batuhan Kaplan
>
> Batu Kaplan <mozbeth01@gmail.com>, 5 Mar 2019 Sal, 12:09 tarihinde
> şunu yazdı:
> > Hello, Marcus.
> > First of all, I'm very grateful for your answer. But how I can make
> > a connection between the bits and the "baseband frequency values"
> > that you mentioned in the mail?
> > For example, I have 000110 bit series for 4FSK. And then, I think I
> > need to pack into 2 bits like 00-01-10. But then how can I turn the
> > bits to appropriate form for implement the frequency modulation
> > block? After that, am I going to apply to the frequency modulation
> > block for each group of symbols? Can you share a flow chart for us
> > to understand better? like file txt ---> packed ---> frequency mod
> > ----> sink.
> >
> > Yours sincerely.
> > -Batuhan Kaplan
> >
> > Müller, Marcus (CEL) <mueller@kit.edu>, 1 Mar 2019 Cum, 21:42
> > tarihinde şunu yazdı:
> > > Hi Batu,
> > >
> > > a really intuitive way of implementing FSKs is to convert your
> > > bit
> > > groups to baseband frequency values (e.g. -1.5, -0.5, 0.5, 1.5)
> > > and use
> > > them with the frequency mod block.
> > >
> > > Best regards,
> > > Marcus
> > >
> > > Marcus
> > >
> > > On Fri, 2019-03-01 at 16:59 +0300, Batu Kaplan wrote:
> > > > I am implementing the binary FSK with GFSK block and I think it
> > > is working correctly. For the next step I want to increase my
> > > modulation order of FSK modulation, like 4-FSK and 8-FSK,
> > > however, I could not move forward from the file source block. How
> > > can I implement the 4-FSK and 8-FSK on GNURadio?
>
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