There is little doubt that operating high-powered amateur amplifiers
directly and negatively impacts its users' health, e.g.:
-I have dropped a 170 lb amplifier on my foot, and although did not break
anything, it hurt like hell for a very long time;
-I had a herniated disk once, due at least in part to my repeatedly lifting
the amplifier discussed above;
-Not to mention the time I reached inside my 4-1000A amp to see if a
particular component was running hot, and you can guess the rest;
-Examples abound.
WB2WIK/6
"Each success only buys an admission ticket to a more difficult problem." --
Henry Kissinger
> -----Original Message-----
> From: Barry Kirkwood [SMTP:bjk@ihug.co.nz]
> Sent: Monday, November 05, 2001 9:40 AM
> To: amps@contesting.com; John T. M. Lyles
> Subject: Re: [AMPS] another myth on EMF
>
>
> My 02c. worth:
> I am reasonably persuaded that the biological effects on adult humans from
> being subjected to strong rf fields in the vlf-hf region are minimal.
> As has been pointed out whole poulations in major cities have had
> considerable exposure over decades and it hard to attribute any adverse
> effects to the rf fields alone. Also all of us know individuals who have
> worked in transmitter halls all their lives and their seems ot be no
> unusual
> incidence of health problems, at least detectable by common observation.
> In
> other industries, it was known by workers and families that there were
> health risks long before they could be identified by science.
> I am more cautious about effects on young growing humans. If I had choices
> I
> would prefer not to raise my children under major power transmission lines
> or next door to a radio transmitter that ran all the time. Not that I
> think
> there is significant risk, but if one has alternatives why not play it
> safe?
> There has been good and reliable research ?Slovic on public risk
> perception.
> It show that public fears are not random or irrational per se.
> There are main two dimensions: Dread, associated with possible major
> catastrophes involving large numbers of innocent and helpless people, and
> Strangeness associated with poorly understood technical or mystical
> powers.
> The other poles are familiarity and benefit.
> Hence people underestimate the risks from things with which they are
> familiar and bring them benefits eg automobiles, home swimming pools,
> motor
> mowers etc and overestimate possible risks from technologies with which
> they
> are not familiar, or ghosts, wild animals, nuclear technoogies.
> These findings seem to hold up well with replication.
> Matters are not improved by self serving or ignorant individuals on the
> technology side of the fence dismissing public fears insensitively, and
> minimising small but finite risks.
> This does lead to a theme about technology gone mad, alienation,and the
> building of a world which is unsustainable, but I do not want to go there.
> I live in voluntary exile on an island away from anywhere.
> cheers
> end
> Barry Kirkwood PhD ZL1DD
> Signal Hill Homestay
> 66 Cory Road
> Palm Beach
> Waiheke Island 1240
> NEW ZEALAND
> www.waiheke.co.nz/signal.htm
> ----- Original Message -----
> From: John T. M. Lyles <jtml@lanl.gov>
> To: <amps@contesting.com>
> Sent: Tuesday, 06 November, 2001 5:39 AM
> Subject: [AMPS] another myth on EMF
>
>
> >
> > Cellphones cause brain tumors......
> > In study after study, the link of 800-1800 MHz RF emissions to cancer
> > has NOT been scientifically proven. RF heating, some affects on
> > nerves, auditory affects at pulsed rep rates, but the energy from RF
> > on cells is low compared to the ioning energy from nuclear phenomina.
> >
> > For about 20 years now, I have looked at dozens of research reports,
> > papers and books, on this very subject, and there is no such proof
> > out there. Every study can be interpreted either way. Studies show
> > that even the studies are flawed. It is very difficult to prove that
> > RF causes cancer. Its difficult to prove a lot of things which might
> > be suggested to cause cancer. Diet, smoking, genetics (a big one),
> > stress, some chemical exposures - all may cause cancer. Male tower
> > workers getting breast cancer, ham radio operators develop brain
> > tumors, cellphone users get cancer more frequently, children living
> > near a substation getting leukemia, certain configurations of power
> > line conductors causing more risk, and on and on and on. The media,
> > and a lot of hypocritical phone users seem to continue to promote the
> > cellphone myth. There is a lot of truth that cellphones cause auto
> > accidents. And the media always says that 'big brother' is trying to
> > suppress information, i.e., the lobbyists for cellphone companies and
> > providers and Motorola, Nokia, etc. And what is the media interest:
> > To sell more papers, get more listeners, win ratings for their
> > market, get more advertisements. What a vicious circle.
> >
> > Recently, the city of Santa Fe, NM tried to ban cell towers for
> > various political, esthetic and other reasons. The very same myths
> > were brought up, by many of the same people who also confuse nuclear
> > radiation with RF. (it radiates, right?). Needless to say, it was
> > hilarious reading their statements and 'scientific evidence' in the
> > news.
> > And it is sad to know that unqualified opinionated people are
> > influencing the direction of decisions. These same people would not
> > think twice about ~using~ a cellphone, however, and have the silly
> > things ringing at them.
> >
> > When this technically savy discussion on RF amplifiers starts to
> > degrade into a forum similar to what you can tune into in your local
> > paper and TV news, its time to find a more challenging group.
> >
> > K5PRO
> > John
> > --
> >
> > --
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> >
> >
>
>
>
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