Hi Alexandu,
Oh yes, by plugging it into an audio source it will work as is with GR.
We wonder how to rip the I and Q's and pass them further to GR for
(de)modulation
We need to study the dongle and its ICs more
Thanks,
Patrik
----- Original Message -----
From: "Alexandru Csete" <[email protected]>
To: "Patrik Tast" <[email protected]>
Cc: <[email protected]>; "Jerry Martes" <[email protected]>
Sent: Saturday, February 19, 2011 18:46
Subject: Re: [Discuss-gnuradio] FUNCube dongle
On Sat, Feb 19, 2011 at 4:58 PM, Patrik Tast <[email protected]>
wrote:
Hi All,
Has anybody tried the FUNCube USB dongle?
http://www.funcubedongle.com/
How tricky would it be to add GNU Radio support for it?
Hi Patrik,
The FCD works as is with GNU Radio since it is an audio source. I used
GNU Radio for my initial tests:
http://www.youtube.com/watch?v=daY-fkMYN_M
Changing frequency can be done using the qthid control application.
The one on the website is known to crash and freeze. I have since
forked it and applied the necessary fixes to make it run stable. It is
available here: https://github.com/csete/qthid although not quite 100%
stable unless FCD is running the 18f firmware.
Once I'm done with this I will implement the remaining API for setting
gains and filters and eventually there will be a "libfcd" which can be
included in a GNU Radio block.
I'm not sure if it makes sense to create a GNU Radio block for this
since the FCD is already an audio source and a block is not necessary
for setting frequency and such. I guess it would still be useful for
using it in GRC applications.
Alex
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