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Re: [Discuss-gnuradio] Why packet decode failure happen when fft-length
From: |
Ralph A. Schmid, dk5ras |
Subject: |
Re: [Discuss-gnuradio] Why packet decode failure happen when fft-length is set to 64? |
Date: |
Thu, 28 Mar 2013 09:47:34 +0100 |
In case your USRPs have an input for an external clock just feed them from
one external clock source. USRP1 need a modification as the external clock
connector is not yet installed, but the connections are available on the
PCB.
Ralph.
> thanks for you reply. How to do that exactly. You mean need to modify the
> hardware.
>
>
> Sent from my iPhone
>
> On 28 Mar, 2013, at 15:04, "Ralph A. Schmid, dk5ras" <address@hidden>
> wrote:
>
> > An exact clock source may help, or clocking both USRPs from the same
> clock.
> >
> > Ralph.
> >
> >
> >> Could be related to the subcarrier spacing in the bandwidth and
> >> frequency offset. Try to hand-tune your tx and rx frequencies so they
> >> are as close
> > as
> >> you can get (using uhd_siggen and uhd_fft) them and see if that helps.
> >>
> >> Tom
> >>
> >> _______________________________________________
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> >
> >
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