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Re: [Discuss-gnuradio] rf to data file - usrp_rx_file.py
From: |
mj |
Subject: |
Re: [Discuss-gnuradio] rf to data file - usrp_rx_file.py |
Date: |
Wed, 23 Mar 2005 17:45:24 +0000 |
nice one, thanks.
i'll have another play.
mj
On Wed, 23 Mar 2005 09:26:23 -0800, Matt Ettus <address@hidden> wrote:
>
>
> > I have been trying to find a way to use usrp_rx_file.py to grab a
> > certain bandwidth and sample rate from my usrp and save it into a
> > file. By moving the decimation value to max i can't get the bandwidth
> > down to 12.5khz.
>
> The USRP hardware will only decimate by up to 128 at this time. That will
> give
> you 500 ks/s complex and 500 khz of BW. In software you should then pass the
> signal through a decimating FIR filter to get it down to the width you'd like.
> Nearly all of them examples show how to use one of these filters.
>
> > How could I add a bandpass filter to usrp_rx_file.py? Is this even the
> > right way to go?
>
> Yes
>
> > Also, is it possible to transmit the captured rf from the file at a later
> > date?
>
> Just reverse the process you used to receive it.
>
> Matt
>
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