[Hackrf-dev] Air relay ADS-B to BTLE via single HACKRF in realtime

[Jiao Xianjun]

On Sun, Jul 12, 2015 at 1:40 AM, Jason Cooper <hackrf at lakedaemon.net> wrote:

> Hi Jiao,
>
> On Sun, Jul 12, 2015 at 01:10:31AM +0800, Jiao Xianjun wrote:
> > I write a experimental HACKRF firmware (introduction and download:
> > http://sdr-x.github.io/abar ) to let your Phone/Pad "see" air ADS-B info
> > via HACKRF:
>
> Do you intend to publish the source code?

I am planning. But not now. code is ugly. And not think clearly about risk
of potential dangerous usage.

>
> > Plane --> 1090MHz ADS-B --> HACKRF --> 2.4GHz BTLE --> Phone/Pad
> >
> > ​The firmware runs standalone. That means you all you need is a battery.
> > Computer is not needed any more!
>
> Very cool!
>
> > Because ADS-B and BTLE packet are sparse and rate is low, that's why I
> can
> > have them run in the single MCU of HACKRF and share transceiver&antenna
> in
> > TDD style.
> >
> > (To lower risk, latitude and longitude accuracy has been degraded
> > intentionally)
>
> Risk of what?  Overload MCU?
>
MCU is powerful enough to calculate full resolution. Risk of dangerous
usage. After all plane's accurate location will be exposed.

>
> thx,
>
> Jason.
>
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