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Francesco Gugliuzza f.gugliuzza at hacklabproject.orgYou shouldn't need to do any tuning. http://cgit.osmocom.org/rtl-sdr/tree/include/rtl-sdr.h search "test mode" in the file. Once you have enabled the counter, just check the incoming samples to see if you drop any data. I *think* rtl_test does it when running in async mode, but I'm not so sure. I'd like an official word from the devs on this. 2013/6/27 David Jacobowitz <david.jacobowitz at gmail.com> > One could probably write a program that can tune to a known signal and > then test through a range of sample rates to determine which ones generate > a data stream that when treated at the expected sample rate gives the > expected signal > > .... a project for another day. > > > On Thu, Jun 27, 2013 at 2:16 AM, Sylvain Munaut <246tnt at gmail.com> wrote: > >> > Thanks, Sylvain. That makes sense. I probably wouldn't have spent so >> much >> > time on it if the lib gave some indication that it wasn't setting those >> > rates. >> >> Well, we don't really know exactly what rates are supported by the >> hardware or not since there isn't exactly good documentation on it ... >> and the lib will just pass that to the hardware as long as the range >> fits into the "registers". This way users can experiment ... >> >> But if you want reliable operation you should stick to "known" working >> samples rates like 250k 1M 1.024M 2M 2.048M 2.4M >> >> Cheers >> >> Sylvain >> > > -- Francesco Gugliuzza B.Sc. in Computer Engineering HackLabProject.org Administrator Linux user #374630 Tel (VoIP geographic number): +39 0921440446 Tel (Libera il VoIP number): 5125320 E-mail: f.gugliuzza at hacklabproject.org -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/osmocom-sdr/attachments/20130627/5cf32a1e/attachment.htm>