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.
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