Hi, I recently used rtl-sdr / rtl_fm and some adhoc code to decode NRF905 frames. A post is here: http://www.embeddedrelated.com/showarticle/548.php If you think it can be useful to anyone, maybe you can add it to the 'Known Apps' section of this page: http://sdr.osmocom.org/trac/wiki/rtl-sdr Thanks for your great work, Cheers, flm.