[Hackrf-dev] Using hackrf as CCA noise generator

[Ben Greear]

Hello,

We are trying to use a hackrf to generate noise to test
that our wifi radio properly does CCA and quits transmitting
when the on-channel noise is above a certain threshold (about -70dB)

In initial testing, however, our radio appears to totally ignore
the RF noise from the hackrf.  One reason might be that the hackrf
is outputting a very narrow band of noise (about 500Khz), where we might
need a full 20Mhz of noise to make CCA work reliably.  Is there
a good way to make the hackrf output a wider band of noise?

Another thought I had is that maybe pure RF noise is not enough
and there has to be some sort of wifi-like modulation to make CCA work?

(And of course, our AP implementation could be busted...we will
continue to try to tie-break that.)

And, does anyone have any experience with doing this type of testing
that they can share?

Thanks,
Ben

-- 
Ben Greear <greearb at candelatech.com>
Candela Technologies Inc  http://www.candelatech.com