Utility Cuts Short BPL Trial
fatboy writes "The ARRL is reporting that Alliant Energy has called an early end to its broadband over power line (BPL) pilot project in Cedar Rapids, Iowa. The "evaluation system" went live March 30, and plans were for it to remain active until August or September. Alliant shut it down June 25. Ongoing, unresolved HF interference from the system to retired engineer Jim Spencer, W0SR, and other amateurs prompted the ARRL to file a complaint to the FCC on Spencer's behalf demanding it be shut down."
I happen to live in the Cedar Rapids/Marion area and I didn't even know this was there. Why doesn't anyone tell us anything?! It would be an alternative to Mediacom and Qwest.
I'm incredibly glad to hear this. BPL has the potential to kill ham radio (and actually lot's of other HF radio services) as it uses HT powerlines that were not intended to carry HF signals and act as really excellent antenna (in fact the US Navy uses them to transmit extremly low frequency/long wavelength signlas to its submerged subs! So we know they work as antenna!)
I'm also glad the FCC isn't actually as big a patsy of the BPL industry as it first appeared. Cheers to the FCC and let's hope this is the first nail in the coffin of a truly bad idea.
As an aside: I hope this discourages the power industry muppets in the UK from trying the same thing.
Bad analogies are like waxing a monkey with a rainbow.
I remember something like this being tried about 5 years ago. It had the amateur radio community in an uproar. Something to do with street lights re-radiating the high-speed internet data in the form of electromagnetic energy. Apparently they did little to fix it. Shame; I wanted to be the first one on my block to have the other cable.
The last paragraph is quite telling actually:
That BPL means 'Broadband over Power Line', by the way.
I have to stop wasting so much time reading Slashdot. It's interfering with my crystal meth addiction.
What neutral wire? ... its all the same with 3 phase. When you look at the 3 wires, you will find a forth ground line above them all that should take the volts of a lightning strike and it helps the real big circut breakers work right when there is a major problem with a tower. The ground line is what they hang the fiber off of and some places have a coax like shield thats the ground path around the fiber.
Neutral, ground
The problem is fiber doesn't like the wind action on poles and lots of that dark fiber is good for the distance between the poles and no longer.
See Alan Crosswell's site for more information on BPL interference in his area.
All it takes is one location to roll out BPL, and the HF band is affected world-wide.
I predict the following:
Before anyone says how heartless I am to those poor ham radio operators: I am one. I'm just a realist.