Lets see...

A 6 WATT power amplifier feeding a 2.4 meter dish (that's the area of 
FIVE king sized beds), not to mention a high altitude balloon, helium 
and all the launch gear, plus GPS tracking systems for the antennas and 
presumably clearance from government and military authorities to drift 
around at commercial air-space altitudes in a random direction.

I make that an output of nearly 90dBm and a receive sensitivity of 
probably -140dBm. Allow, say 10dB noise margin and you have a mind 
blowing 220dB headroom to play with. Compared to a free space loss of 
'only' 150dB for the 315Km link and you wonder just how far they COULD 
have gone.

BUT...  Can you still call that WI-FI?

:-)

>FYI
> 
>Alvarion and Breeze set the Guiness world record for the longest WLAN
>link at 310 km
> 
>http://www.alvarion.com/RunTime/CorpInf_30130.asp?fuf=298&type=item
> 
> 
> 
>[EMAIL PROTECTED]
>  
>



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