"Theplanters95" wrote in message
...
I have an unanswered question about BPL. Where I live has a very old
power
line system, full of splices and corrosion. How will splices affect the
1) the
internet signal and 2) RFI?

Randy ka4nma

The internet signal will be crappy and subject to interruption by static
from all kinds of sources. RFI generation will be severe. I do not know
whether the splices and corrosion will make it worse but it certainly won't
help matters.

Dee D. Flint, N8UZE

Dee D. Flint wrote:
"Theplanters95" wrote in message
...

I have an unanswered question about BPL. Where I live has a very old

power

line system, full of splices and corrosion. How will splices affect the

1) the

internet signal and 2) RFI?

Randy ka4nma


The internet signal will be crappy and subject to interruption by static
from all kinds of sources. RFI generation will be severe. I do not know
whether the splices and corrosion will make it worse but it certainly won't
help matters.

Dee D. Flint, N8UZE

If open wire (telephone line) is a precident- ANY HI RESISTANCE, or ground, or
arcing in the instance of power will cause an unbalance of the circuit. This causes
a very high noise level on that circuit pair,
and would also cause it to RADIATE interference! And,
consider, that power companies have substancial arcing (caused by dirt, and loose
hardware), and ESCAPE (the induction from an A.C. line to other objects, if the
voltage is high enough and the magnetic field is strong enough), like fence lines
and telephone co. messenger (the steel cable that supports their telco cables),
paralleling it, and arcing to ground - there are several undesired effects even
WITHOUT BPL to cause QRN ! And btw, it is NOT necessary for a very good ground
to cause problems- just tree limbs are enough to cause a problem in this area.
ONLY GOOD part of the situation is the more current that flows thru the wire
(and hence the sleeves), the internal arcing in those bad sleeves tends to "SEAL"
or heal themselves for a duration- but if the current lowers to a substantial
amount, the problem will be BAAAAAACCCK !!! As info, Jim NN7K


--
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"Dee D. Flint" wrote in message ...
"Theplanters95" wrote in message
...
I have an unanswered question about BPL. Where I live has a very old
power
line system, full of splices and corrosion. How will splices affect the
1) the
internet signal and 2) RFI?

Randy ka4nma

The internet signal will be crappy and subject to interruption by static
from all kinds of sources. RFI generation will be severe. I do not know
whether the splices and corrosion will make it worse but it certainly won't
help matters.

A lousy splice could well act as a completely non-linear diode
detector and spew even more garbage everywhere up and down the whole
RF spectrum. It just keeps getting worse.

As to power line physical specifics kindly consider: To to a large
extent the radiated interference the BPL ISP's might bless us with, if
it ever gets off the ground, is dependent on the physical realities of
the line configurations they use.

Roll back decades ago and the phone companies rather easily beat their
interference problems (crosstalk for one) eons ago by using twisted
pairs of conductors to move comms along their wires. Twisted pairs of
conductors are generally inclined to reject incoming interference and
equally are not particulary inclined to radiate whatever signals they
might be transmitting from here to there analog or digital yes? Of
course. Goes back to some guy named Maxwell, has something to do with
the 3D electromagnetics right-hand and left-hand drive ya batty
"rules" he "discovered".

So it's become quite obvious to me that BPL and HF ham radio could
co-exist quite peacefully on the bands after they install their 3Ø
13Kv twisted pairs.


Dee D. Flint, N8UZE

w3rv

So why did the FCC comment system reject (multiple times) my comments and these
questions about bpl?

If you look at the bpl test areas, none of them are in rural areas. Come out
to where I live and you will found rural on top of a 6200 foot mountain with a
10 percent grade to go up and down.

Randy ka4nma