If I understand it correctly Both the RTL and the HackRF give you 8bit I/Q samples. But the SNR is based on more then just this, gain settings of both platforms come into play. the RF gain stage of the HackRF is quite noisy.
I think the HackRF preforms better at certain sample rates 16MS/s for instance. Someone with more knowledge may be able to elaborate further on this. -Chris On Wed, Apr 1, 2015 at 2:32 PM, Paul Connolly <[email protected]> wrote: > The sample rate of a RTL dongle is 28.8MSPS at an unknown number of bits, > this is decimated inside the RTL2838 chip down to 2.4MSPS. That is the > maximum data rate that can be transferred out in debug mode without > dropping samples. So to compare the two of them you would need to decimate > the 20MSPS of the HackRF down to 1.66MSPS. Then you could compare the two > devices. The more bandwidth the more noise, so the RTL may actually look > worse in the comparison, I've never actually done the comparison. It is > like trying to compare a banana to a unicycle - they can both make you > fall, but they are not the same. > > On 01/04/2015 11:45, Tom N wrote: > > Am I correct in saying that a rtl dongle is more sensitive then the hackrf? > I have done many tests with different software, sdr#, gqrx, sdr console and > have tried every different gain setting, samplerates, bands, but my > conclusion is that the SNR is better on the dongle. > > > > _______________________________________________ > HackRF-dev mailing list > [email protected] > https://pairlist9.pair.net/mailman/listinfo/hackrf-dev > >
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