Courts and bug product

[Ian Batten]

On 13 Feb 08, at 1133, Roland Perry wrote:
>  Today, there are people who think that any mobile phone made in  
> the last couple of years has a secret GPS chip inside [2].

Presumably with a judiciously chosen weave you could produce a mesh  
bag for phones which will attenuate the already weak L1 for GPS  
standard positioning (1575.42MHz), ~20cm, while passing sufficient of  
the stronger GSM in the 900MHz band (~30cm) to allow your phone to  
ring when it's called.  Probably rather harder with PCS (1800MHz)  
owing to the relative proximity of the wavelength and the lower  
powers employed.  Demonstrated to the gullible by showing a phone  
ringing while a GPS receiver complains of no signal.

Useless, of course, and a solution to a non-problem.  But clearly a  
profit-making scheme for taking money off nutters.

ian