Hi, I've discovered this project yesterday, while looking for Linux driver for a DRM receiver.
GNUradio looks very interesting, but I haven't found too much documentation for very beginners (I'm not en engineer, and I've problems understanding many things behind radio and frequencies). This is what I've understood: 1) Hardware: we need some magic box to tune some given frequency (e.g. 100 MHz) and downconvert a bandwitdth of about 20kHz around that frequency in order to pass it to the input of the sound card (which working at 48kHz can only sample 0 to 24 kHz). 2) Software: the signal is then sent through all nodes of GNUradio which performs all sort of decoding, (AM, FM, DRM, DVB etc...) and (possibly) generating a signal ready to be played to the PC's speakers. It looks to me a great idea! Having one single receiver useful for all sort of signals! Instead of chasing all new standards of digital and analogue broadcast! But it looks too good to be true, since I haven't understood whether such a receiver exists. It looks one has to assemble it personally, but then again I have no idea of how to do it. And would it be good for all frequencies? What is a reasonable range for a single device? Another question: the project http://drm.sourceforge.net looks to be a subset of GNUradio, decoding only DRM. There as well a receiver is needed. Unfortunaltely I cannot understand whether the same sort of device is required for DRM and GNUradio. Has anybody seen it? Sorry for the many questions. But it seems to be a whole new world to me. Thanks _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
