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Re: [Discuss-gnuradio] Issue with basic FM receiver
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From: |
Marcus Müller |
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Subject: |
Re: [Discuss-gnuradio] Issue with basic FM receiver |
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Date: |
Wed, 11 Sep 2019 16:02:03 -0500 |
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User-agent: |
Evolution 3.32.4 (3.32.4-1.fc30) |
Hi Ludovico,
you're definitely missing some resampling in there!
Best regards,
Marcus
On Wed, 2019-09-11 at 13:25 -0700, Ludovico Cavedon wrote:
> Hi,
>
> I am having hard time figuring out what I am doing wrong here.
> If I use a NBFM Receive block, it works well, I hear the NOAA
> transmission.
> If I replace the NBFM Receiver with a quadrature demod, FM
> deemphasis, LP filter, then I just hear only noise.
> I looked at the source code of the NBFM Receiver and it seems to be
> doing exactly that.
> I must be missing something very trivial. Anybody has a hint, please?
> Screenshot and .grc attached.
>
> Thank you,
> Ludovico
>
>
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