[Hallicrafters] My response to the BPL article
Rich Oliver
Rich.Oliver at lowell.edu
Thu Mar 25 20:12:02 EST 2004
Ken Brown, WSJ
Dear Ken,
I have read your article "... High-Wire Act Riles Ham-Radio Fans" and
would like to offer my comments. I am a 54 year old Ham operator with
many years of experience working in commercial AM, FM, and TV
engineering and industrial electronics, and I have held the highest
classes of Ham and Commercial licenses for a long time.
First, I think Mr. Lindquist may have failed to convey the broad scope
of Ham Radio. It is a whole world with so many facets it would take an
hour just to outline them all, and there are different, overlapping
communities devoted to each. One of those facets that receives little
attention these days is advancing the technical state of the art. We
are still working hard to do that and accomplishing more than most
people know. To me the most exciting thing about Ham Radio is the
synergy that takes place among the different Ham communities. For
example, DX contacts and the 'chatter' you described early in the
article help to provide contacts for building emergency networks, those
networks drive development of vhf repeater systems for enhanced coverage
areas, and antenna developments help everybody. The truth is that some
aspects of Ham Radio would not be impacted much by BPL, most would be
impacted to some unknown degree, and some like weak signal work are
likely to become impossible.
Thank you for the comment that "[Hams are] a fairly vocal group that has
been whipped into a frenzy by their organization". I needed a good
laugh. The sad truth is that the ARRL has become an ineffective
organization incapable of doing much more than publishing their
magazine. I have belonged to the ARRL through most of my years as a Ham
so think I'm entitled to that opinion. In truth the potential threat
posed by BPL to the quarter million Hams (your number - I have not
checked it) plus the millions of other Americans who listen to
short-wave broadcasts and use the RF spectrum in other ways deserves an
alarm. Sadly the ARRL is no longer capable of sounding a proper one.
The cry you hear is coming mainly from individual Hams. They aren't out
to pick a fight; they are just the canaries in the coal mine sensing
that first whiff of methane.
How bad can it be? There are plenty of unknowns but consider this.
Under good conditions milliwatt level signals - far less power than is
used in a flashlight - can be heard clearly around the world. Even with
careful filtering BPL power levels would exceed that by a large margin.
Perhaps some parts of the radio spectrum can be filtered out but the
fact is that somebody uses and cares about each and every segment of the
RF spectrum; you simply cannot filter them all out and have anything left.
"Why is this thing a major calamity?" It depends on how you use radio.
If that does not extend beyond listening to commercial stations while
you commute then the direct effect on you will be minimal. If you are a
Ham it will be considerable. It comes down to asking Hams to justify
their existence - again. Hams have risen to the occasion every time
disaster strikes and provided critical communications until the regular
channels can resume operation. This has happened time after time
following hurricanes, floods, wildfires, and earthquakes. There are
other good reasons but that one clearly justifies Ham Radio all by
itself. We are the "spare tire" of modern communications; Hams get
through when all else fails. Or at least we have until now.
I work at an astronomical observatory in Arizona and light pollution
kept coming to mind as I read your article. The parallels are
remarkable. Is it OK for me to burn my yard light all night because I
think its a good idea and I don't care about star gazing? What about
the needs of the astronomer whose job just got a little harder? What
about the kid next door who does like star gazing - or might if she
could see them? Just because your pollution doesn't bother you doesn't
make it OK.
BPL ultimately benefits the stockholders of utilities companies. Or at
least that seems to be what is driving it forward. I am not convinced
that there would actually be much profit in it. The technical obstacles
appear to have been greatly underestimated and besides, it is clear that
there are better ways to get the job done.
A twisted pair data cable or a coaxial cable could be run along the
power lines and carry the data while causing little interference. For
that matter why not run an optical fiber with the power lines? Fiber is
no longer expensive in the scheme of things; such a system would be much
more efficient for the utilities and would radiate no interference at
all. The utilities could even sell excess bandwidth to recoup the cost
of the installation. I believe that a careful accounting would show any
of those alternatives to have a lower cost/benefit ratio than BPL.
I am not opposed to the utilities sending digital data around their
network, it is a great idea whose time has come. It just needs to be
implemented properly if the utilities hope to maximize profit and
continue to be good neighbors.
Sincerely,
Richard Oliver, KC9GQ
Flagstaff, AZ
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