Just for grins here's a GNU/Radio plot of a local FM station transmitting HDRadio, with prominent digital sidebands:
http://webpages.charter.net/cswiger/hdradio_fft.jpg Not sure what the spike at +90k is, SCA maybe. paper on it here: http://www.bdcast.com/HDRadio/papers/ "THE STRUCTURE AND GENERATION OF ROBUST WAVEFORMS FOR FM IN-BAND ON-CHANNEL DIGITAL BROADCASTING" --Chuck _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
