[Hackrf-dev] HackRF hardware problems

[McDonald, J Douglas]

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

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