<OT> Wireless Access Point

[Peter L. Peres]

On Wed, 1 Oct 2003, James Knott wrote:

> However, often with microwaves, a reflected signal may be stronger, if
> there's something on the direct path to the source, that attenuates the
> signal.

Yes but you can continue tracing from it after you find it.

> > This works because your body is mostly water, and 2.4GHz is absorbed
> > pretty well by water (microwave ovens work at 2.4GHz too). The field
> > strength indicator must have reasonable resolution for this to work (say
> > 3dB steps or finer).
> >
> > This trick works for most microwave equipment above 1.5GHz, including GPS
> > up to a point. Do not try it with active radar though.
>
> The principle is the same for all frequencies.  However, directional
> antennas are easier to obtain for the higher bands.

Large bags filled with salt water that can be easily ordered to move
around work well only at microwave frequencies (UHF and up). ;-)

Peter
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