minimum sample rates?
f.gugliuzza at hacklabproject.org
Thu Jun 27 11:03:41 UTC 2013
You 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
>> > 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
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E-mail: f.gugliuzza at hacklabproject.org
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