Highland Ham wrote:
I am not a supporter of BPL .......full stop.
Apart from that , in the UK (A)DSL is widely available ,so BPL (or PLC)
is not an issue eg a threat to Amateur Radio in this part of the world.

The same in the United States. Due to the overspending on infrastructure
without demand in late 1990's there is plenty of "dark" (unused) fibre.

However there is BPL and BPL.
Most of us on this NG know that ARRL is fighting against the
introduction of 'certain BPL systems' which pollute the HF and up
spectrum ,but NOT BPL in principle.

The problem with the system Google funded is that they do polute spectrum,
just not ham radio spectrum (for now). Therefore the studies the ARRL has
done which inlcudes going there and driving around show there is no problem.

If you think of Google's BPL as the electromagnetic equivalent of toxic
waste dumping, the ARRL is more like the AAA (or AA in the U.K.) than
Greenpeace. As long as they dump "off road", there is little they can
do.

It is interesting that in this case, Ed Hare, W1RFI, the ARRL's BPL expert
has tried to interest U.S. radio user's groups besides the ARRL and no
one was interested in his data. AFIK the only country where anyone has
complained about the effect of BPL on commercial traffic was Austrailia.

The problem is that the notching out of ham bands is something that can easily
be undone. It may even be as simple as the operator of a system entering
filter parameters into a control computer. In fact it would have to be, or
they could not react to complaints.

That means there is nothing to stop a system operator, once they are established
from using the ham bands.

On the ARRL premises Motorola have installed a BPL system that according
to ARRL does not pollute the spectrum .

I don't know much about it. I've read claims as such, that there is NO RF
polution by the Motorola system, but have seen no hard data. If it does or
not, the Google supported system does pollute, they just make sure that
no one with an organized voice are the targets of their polution.

So when addressing Google's support for BPL , it seems only sensible to
adopt a more balanced opinion .
Google is an effective search engine ,that's why I use it. There is no
other reason.

There are lots of effective search engines. Google has been terrible for a long
time. When Google first started, you could put in a subject and get a
hit on the first page for THE web site as opposed to it now being on the
fourth or fifth page.

Geoff.


--
Geoffrey S. Mendelson, Jerusalem, Israel N3OWJ/4X1GM
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