Re: [Discuss-gnuradio] 802.11 and Bluetooth

[John Clark]

Tom Rondeau schrieb:
> > -----Original Message-----
> > From: 'Eric Blossom' [mailto:address@hidden
> >
> > On Wed, Dec 06, 2006 at 02:13:39PM -0500, Tom Rondeau wrote:
> >     
> > > > Actually, I think you should be able to detect Bluetooth without too
> > > > much trouble.  If you just stare at a single point in the spectrum you
> > > > should be able to reliably detect 7 1 MHz channel's worth of data.
> > > >
> > > > IIRC the hopping sequence is known, and thus you should be able to
> > > > determine if what you are seeing is bluetooth or not, even though you
> > > > are seeing only 7 out of 79 channels.
> > > >
> > > > Eric
> > > >         
> > > I was thinking that, too, but you'll just see short blips on the screen.
> > > Actually, if I get another second to breathe today, I'm going to see if
> > >       
> > I
> >     
> > > can make it happen and see what can be seen.
> > >       
> > Good.  I was thinking along the line of actually trying to demod the
> > packets.
> >
> > Eric
> >     
>
> I'll have to pull out my old Bluetooth test program I wrote a while ago,
> then I should be able to control the streams pretty nicely (or at least
> stream packets continuously with the same payload). Then I can just tune the
> GNU Radio GMSK receiver (hack it for the access code correlation) to a
> specific frequency and wait till I get a hit.
>
> It's like fishing for RF. Do I have to throw them back?
>   

Only if it is of the species, 'signalus drmicus'...