internet over power line carrier
internet over power line carrier
(OP)
Do distribution transformer builder specify their
pole mounted transformers into the 30 Mhz range. I need
these specs to investigate sending data over the power
line for communication in a small physical area.
Thanks
pole mounted transformers into the 30 Mhz range. I need
these specs to investigate sending data over the power
line for communication in a small physical area.
Thanks






RE: internet over power line carrier
RE: internet over power line carrier
RE: internet over power line carrier
You might check FCC website and www.arrl.org for reference links on broadband over power lines (BPL). Most information I have read indicates a lower frequency - maybe 5 to 10 Mhz. But you won't find any data on that either. The BPL advocates have some test installations in the US. I'm hoping it dies a quick death.
RE: internet over power line carrier
I don't know much about it, or your application, but maybe you contact someone at PUC??
Here is a news clipping from the Toronto Star (you may have to cut and paste each piece in your browsers address box as one string).
http://www.thestar.ca/NASApp/cs/ContentServer?pagename=thestar/Layout/Article_Type1&call_pageid=971358637177&c=Article&cid=1075936210031
Good luck
RE: internet over power line carrier
Why the death watch?
RE: internet over power line carrier
regards
killa
RE: internet over power line carrier
The Broadband over Powerlines techology creates serious interference for HF communications, such as amateur radio bands. This should normally mean that the FCC would not allow it. But I guess Michael Powell is too busy watching reruns of the Super Bowl halftime. Federal Emergency Management Agency (FEMA) opposed it, but anything with the word "broadband" in it is golden at the FCC these days.
This technology has already been banned in Japan due to interference concerns.
I believe it is still in the trial stage in the US at this point.
Utilities have enough problems dealing with RFI from noisy insulators, etc without intentionally generating interference.
RE: internet over power line carrier
See http://www.arrl.org/tis/info/HTML/plc/#TUTORIAL for a discussion of Broadband over Power Line (BPL) and its effect on amateur radio.
RE: internet over power line carrier
That is what I expected. I don't see how broadband
data can survive a distrubution transformer intact.
There is a lot of BS floating around these days in the
press about this.
Thanks
2dye4
RE: internet over power line carrier
RE: internet over power line carrier
My understanding is that the frequencies will be in the 50-300 kHz range like for transmission lines.
RE: internet over power line carrier
Transformers at substations are not a big problem - power companies have been using this idea for many years to carry protection signals on power lines with suitable filters (line traps) as the lines enter the substations. You would want to bypass substations anyway because you dont want your broadband links to die just because you have to open a circuit breaker in a substation.