[MLB-WIRELESS] 2.4GHz scanner project

[Jason Hecker]

Hi,

The data sheet says the maximum frequency is 2.483GHz where as the 7 bit 
channel register suggests it can go up to 2.528GHz.  I there are a few other 
chips that do similar things (look up Chipcon) but you may be out of luck 
after 2.5GHz.  Why so high?

Jason

On Sunday 22 October 2006 07:58, Dan Flett wrote:
> Hi Jason,
>
> Nice project!  Do you have any suggestions as to the possibility of
> widening the spectrum scanned?  I'm mainly interested in 2.4-2.7GHz - is
> there a cheap-ish chip out there that does this range?
>
> Cheers,
>
> Dan
>
> -------------
> View my blog:
> http://freenetjazz.blogspot.com
>
> > -----Original Message-----
> > From: melbwireless-bounces at wireless.org.au
> > [mailto:melbwireless-bounces at wireless.org.au] On Behalf Of
> > Jason Hecker
> > Sent: Saturday, 21 October 2006 1:32 PM
> > To: melbwireless at wireless.org.au
> > Subject: Re: [MLB-WIRELESS] 2.4GHz scanner project
> >
> > Ooo, I wouldn't be so sure about detecting dangerous levels
> > of radiation, even with some sort of attenuator.  The antenna
> > on the module could be disconnected and replaced with an SMA
> > type connector, though you'd have to perhaps add a little
> > matching circuit.
> >
> > Have a look at this design:
> > http://www.circuitcellar.com/library/print/0406/Armitage-189/
> >
> > It works on the same principle as my project but uses a
> > better chip.  It mentions something about baluns (matching circuits).
> >
> > On Saturday 21 October 2006 12:39, Zik Saleeba wrote:
> > > Great project Jason!
> > >
> > > I think I might adapt it for use as an EIRP meter. Do you
> >
> > know if the
> >
> > > RSSI has enough dynamic range to indicate dangerous levels of
> > > radiation? Maybe with an attenuator?
> > >
> > > Cheers,
> > > Zik
> > >
> > > On 10/20/06, Jason Hecker <jhecker at wireless.org.au> wrote:
> > > > It's about time.
> > > >
> > > > I have hacked up new project to scan the 2.4GHz band.
> > > >
> > > > Beware, it involves a soldering iron.
> > > >
> > > > http://www.wireless.org.au/~jhecker/specan/
> > > >
> > > > I've still got a bit more work to do, such as collecting more
> > > > examples of 2.4GHz transmissions.
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