[Qcwa] Powerline Snake Oil

[Gerd & Traudl Schrick]

There was an excellent article in last Mondays Christia Science Monitor: =
here just an excerpt:

An excerpt from an article "Power lines set to carry high speed =
Internet." in the Christian Science Monitor, April 26,  by Brad =
Rosenberg=20
 ...Other nations, however, have already made up their mind.

"It's a brilliant idea, but if you give it a more technical, detailed =
look, it all falls apart," says Diethard Hansen, the external chairman =
of the advisory group on BPL to RegTP, Germany's FCC equivalent. "It =
suffers the enormous risk of uncontrolled interference to everyone."

During test trials of BPL in Britain and Japan, Mr. Hansen says, =
interference was so strong that they pulled the plug on BPL.

"In Manchester [England], they failed miserably in the shortwave =
frequency bands because the streetlights started working as antennas," =
he says. "In Japan, they had limited field trials in Osaka and Tokyo, =
and interference got out of control. They had to stop it." Ham-radio =
operators are concerned that BPL will cause the same problems in the US.

But proponents don't seem worried. "What was banned in Japan is very old =
technology," says Thomas.

In addition, Mr. Shark says that BPL didn't work in Europe because of an =
electrical grid that uses more voltage - and a political system overly =
influenced by would-be BPL competitors. "We can't learn as much from =
them."..



Vy 73,  Gerd, WB8IFM.

=20



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