Bill Turner wrote:
Hamguy wrote:


See, Google is NOT your friend after all!
http://www.hamwave.com/cgi-bin/index...iewnews&id=777

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Quoting from the article: "Broadband transmissions over electric power
lines were a major hurdle for the industry, because they are not
shielded to prevent radio interference in the same way as telephone and
cable lines are."

Since when are telephone lines shielded?


A lot of the older stuff was shielded in lead. Not for RF purposes but
for waterproofing. Even though the article really did get that point
wrong, phone lines are twisted, and as such don't radiate well. All that
aside, BPL is still a dirty technology pushed through and around
existing rules in the interest of big business.

It's like these new goofy plastic PC cases. talk about raising the
ambient noise floor! It's as if designers have forgotten the rule about
preventing interference. I'd have to say tens/hundreds of thousands of
unshielded PCs (and other high frequency radiating appliances) will
eventually present as much a problem as anything else.