Sameer Verma wrote:
> The Burlington Northern and Santa Fe Railway Company (BNSF) has found a
> novel use for Wi-Fi. It has started using the wireless networking
> technology to control trains remotely.
> http://www.theregister.co.uk/content/69/34101.html

Is this really 2.4 GHz IEEE 802.11b ???

These things are normally done with 400 MHz, which has better reach
and less (but enough) bandwidth.  I've seen it in operation at a
Swedish freight rail yard.


-- 
  Lars Aronsson ([EMAIL PROTECTED])
  Aronsson Datateknik - http://aronsson.se/

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