[RFI] So-Called Utility "Smart Meters"

Andy ingraham.ma.ultranet at rcn.com
Thu Aug 21 15:23:43 EDT 2008

> 220 (higher power) and 900 MHz (lower power) packet radio links.

A bit more about the frequencies (from http://tantalus.com/technology.htm):

"The 220 MHz frequency is a licensed spectrum used by many utilities for
SCADA applications; the 900 MHz frequency is an unlicensed spread spectrum
shared by industrial and scientific applications."


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