Get a softrock 40. I/Q sampler based on the quadrature
sampling detector (fully balanced. Virtual ground, thus not Tayloe). High
performance, good sensitivity. Yields I/Q in stereo audio for baseband
processing. If you already have a USRP, get the LFRX.
http://groups.yahoo.com/group/softrock40/
http://www.amqrp.org/kits/softrock40/
Frank Brickle and I wrote the SDR core for the software in the
GUI shown in the second link (PowerSDR).
Bob McGwier
ARRL SDR Working Group Chair
Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats,
NJQRP, QRP ARCI, QCWA, FRC.
“Trample the slow .... Hurdle the dead"
From:
address@hidden
[mailto:address@hidden On Behalf Of sriram
s
Sent: Tuesday, September 02, 2008 12:33 AM
To: address@hidden
Cc: gnu radio
Subject: [Discuss-gnuradio] Re: gnu radio with a soundcard
|
Hi,
You could try tapping the IF out of an old radio (which uses FETs) . But you
will need a mixer and band pass filters to bring the signal down to a
range which your soundcard can handle.
Regards,
Ram
On Sat, Aug 30, 2008 at 11:25 PM, Mathew George <address@hidden>wrote:
> Hi all,
>
> Can someone explain how we may build a FM/SW receiver using A/D D/A
> converter in a sound card and minimal additional hardware? Somewhere I
have
> read that this is possible, in principle, but could not yet gather info
> suitable for a novice.
>
> Thanks for the help.
>
> Cheers,
> Mathew
>
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