On Mon, Jan 10, 2011 at 02:23:47PM +0100, Patrick Strasser wrote: > > He didn't ask for a simulator, he asked for real hardware. > > He did not back his request with some deeper insight why he exactly > needs this thing except for he wants it and has not enough money to buy > it. We do not know what he wants to accomplish, and how he thinks to get > there, what he already did. This would be very valuable information -
If I may add a note here: I agree with Brian and Patrick, and would even go further to say that developing fun stuff needs no hardware at all. In fact, whenever I do, say, some kind of receiver, the first thing I do is record signals to a file, so I don't have to touch any hardware *at all* until I've reached a point where I believe my code might work in real life. As long as I'm in the software domain, my tools of choice are Matlab (my dishes out free licences to our students) and scipy. You can get quite far that way. Pre-recorded signals are available on the net, and a polite query on this list to obtain such files from other users is not uncommon. Of course, using Matlab etc. it's also quite possible to write transmitters. As Patrick said, we have no idea what the OP wanted to achieve, but as was also said before, writing something along the lines of "I've just completed a complete receiver chain for standard XYZ, is there anyone with a working USRP to help me out" is likely to get a more favourable response. Finally, if you're a student, a university's probably not far. Here, if you're a student and really want to do something with a USRP (and other hardware), we usually manage to figure something out. The common case is that we make developing something with GNU Radio and the USRP a topic for a Bachelor's thesis. Students get lab access, some tutoring, meet other GNU Radio developers (unfortunately not too many) and even get a degree at the end. How about that. In fact, that's how most of the guts of the Spectral Estimation Toolbox got created. So, I hope this didn't sound too snobbish -- but I think that using GNU Radio, essentially any budget is enough to get started doing serious SDR stuff. Cheers, MB -- Karlsruhe Institute of Technology (KIT) Communications Engineering Lab (CEL) Dipl.-Ing. Martin Braun Research Associate Kaiserstraße 12 Building 05.01 76131 Karlsruhe Phone: +49 721 608-43790 Fax: +49 721 608-46071 www.cel.kit.edu KIT -- University of the State of Baden-Württemberg and National Laboratory of the Helmholtz Association
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