Thanks Doug for your opinion. Now, it would be nice to get a better understanding of your environment and the setup you are using. Labelling the unit as an "expensive joke" is certainly your personal opinion and not shared by me. I do not see these spikes and have very good sensitivity in comparison to a FCD+, RTL-Dongle and conventional radio (IC-9100), however my setup and environment is probably totally different. If there are problems with the unit, and I say again "If" ,we need to find out if it is a quality control problem, a design problem, a user problem etc. Defining a standard set of tests with similar or equal additional hardware (e.g. antenna) etc would go a long way of helping everyone.
My 2 cents, Stefan, VE4NSA On Wed, Nov 26, 2014 at 10:46 AM, McDonald, J Douglas <[email protected] > wrote: > > > Several people have complained with HackRF problems, worrying if their > > unit is defective. > > > > I have the same worries. Mine clearly is nowhere near as good as > > the DVB dongles. But it clearly works, no quibble. It works both in > > SDR#/Windows and Gnuradio/GRC/Ubuntu. > > > > But it is plagued by spurious spikes of near-CW stuff everywhere, even > > up in the upper GHz areas where there should be essentially nothing. > > It sees Wi-Fi fine ... but covered by these spurious carriers. And > > many of them are DIFFERENT in SDR# and Gnuradio. And using both > > they are dependant, both in amplitude and frequency, on the > > gain settings at the low gain end as well as the high gain end. > > That dependance at the low gain end implies to me that its is > > incorrectly dithered or some software problem. > > > > I bought it for the wide bandwidth for certain special purposes > > and it serves those purposes OK even in the presence of the garbage. > > But for general use, its a plain, and expensive, joke. > > > > Doug McDonald > > > > _______________________________________________ > HackRF-dev mailing list > [email protected] > https://pairlist9.pair.net/mailman/listinfo/hackrf-dev > >
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