Internet acces via power network by Kurt Berger  
 
Content: 
 
Where to go:
Introduction
56k modem
ISDN
ADSL
cable TV
power
satelit
home of the seminar
 
Introduction: 
"Power Line" is a very new technology for going online by using the the standard 230 V power supply. This would enable entering the World Wide Web for nearly anybody because, i think, there aren´t many households without powersupply. This technology could change communication at all, so the experts opinions regarding the availability of "powerline" technologies differ in many ways. Of course the old telecom organisations do not really want to help "POWERLINE" grow up. On the other hand there are the power supplyers and there are all the existing cables, so why shouldn´t they use this new technology. 
At the moment there are two important projects, one from  Novell, known as the "nest" project  see -> news and one from  Nortel  and Norweb in Great Britain  see > news
 
 
Technical:
The companies speak from a bandwith up to 2Mbit/sec (nearly 10 times faster than ISDN).
The users will need a special kind of MODEM and (probably) a filter inside the distribution box.

frequency range and user (DIN EN 50065) 
 
BAND
FREQUENCY
USER
- 3 - 9 khz power supply company + 
A 9 - 95 khz power supply company
B 95 - 125 khz user
C 125 - 140 khz user
D 140 - 148.5 khz user
 

Advantage:
 internet for everyone
Disadvantage:

    biggest problem: not available at the moment