Re: [Discuss-gnuradio] usrp dbsrx to use in seti and radioastronomy

[David Bengtson]

For open source 802.11, take a look at 
http://calradio.calit2.net/index.htm , which is a project at Cal-IT at 
UCSD.
There is also a gnuradio tag at del.icio.us

http://del.icio.us/tag/gnuradio

Dave Bengtson


Martin Dvh wrote:

> Hi all,
>
> > I didn't realize this board was out yet. Does anyone know the 
> > bandwidth? How about whether it will tune to WLAN frequencies (at 
> > least to 2.412 GHz)?
>
> I have one (since a few days)
> Matt told me that WLAN frequencies are right on the edge of what the 
> board can do.
> Most of the time if the board is cold it will go to about 2.450 or 
> even 2.5 GHz, but as soon as it heats up (and it will) the highest 
> frequency will go down to about 2.4 GHz.
> You could solve this with extra cooling.
> The bandwidth can be set between 1 Mhz and 33 MHz.
> Of course 33 Mhz won't do you much good using the usrp since you don't 
> have the digital bandwidth to send it all acros the USB bus to the pc.
> (You could however select a few bands from the whole 33 Mhz spectrum 
> within the usrp)
>
> I don't know things like the noise figure yet.
>
> greetings,
> Martin
>
>
> >  
> > Thanks,
> > Clark
> >
> >     ----- Original Message -----
> >     *From:* Iban Cardona <mailto:address@hidden>
> >     *To:* address@hidden <mailto:address@hidden>
> >     *Sent:* Wednesday, August 03, 2005 3:18 AM
> >     *Subject:* [Discuss-gnuradio] usrp dbsrx to use in seti and
> >     radioastronomy
> >
> >     Hi,
> >          I'm looking to buy a rfspace sdr-14 to use with a icom r7100 
> > for
> >     seti and RA. But today I see in the Ettus home page that it have the
> >     DBSRX for sell, if it is usable for seti and RA it is a nice candy
> >     :) because putting two dbsrx boards is possible to listen two
> >     channels at the same time for example.
> >          I have some questions, what is the minimal tune step, the 
> > minimum
> >     signal detectable, and the noise floor of the board? Somebody has
> >     test the module to receive some l-band signals like inmarsat-a, gps,
> >     noaa's, etc.. ?
> >          Thanks a lot!
> >          Iban
> >     
> >     
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