[sdiy] FCC rules and banana sockets

[J. Larry Hendry]

While broadband over power lines may be new, RF on power lines is not.
Utilities have been operating RF from about 50 - 250 KHz on power lines for
many years.  In the old days, these were used for voice. (VoPL, the
grand-daddy of VoIP).  Today, they are used mostly for high speed circuit
breaker trip blocking schemes which key the transmitters only during short
circuit conditions (just a few cycles every now and then).

BTW, there is a sharp rise in the radiation from power line (like a sharp
band pass filter) that centers around 60Hz in the USA. <snicker>  Sorry, I'm
a stooge and could not resist. :)  But seriously,  I believe that RF
interference from improperly bonded high voltage connections and corona
discharge are far more significant issues than interference from BPL.

Larry Hendry

----- Original Message -----
From: John L Marshall <j.l.marshall at comcast.net>
I believe that the FCC has little interest in part 15 anymore since that
have given the green flag to Broadband over Power Line. BPL will include
substantial RF radiation over a spectrum of 0Hz to 30MHz through antennas
that are miles long.