PRC as a amplifier in GPS question.

[lynx]

HeadRush wrote:

sorry..nearly missed your post.

"lynx" <none@nothere.com> wrote in message
news:12sjbrfpb9ccc06@news.supernews.com...

HeadRush wrote:

"PeterD" <peter2@hipson.net> wrote in message
news:gr3hs258bapmpq3snhsh99rqs49tq7mfjh@4ax.com...

On Tue, 06 Feb 2007 23:20:28 +1100, lynx <none@nothere.com> wrote:

Any comment appreciated re this subject.

I contacted Uniden, one of the largest manufacturers of DECT cordless
phones, and they informed me that the output of their phones is
typically 80mw, which they consider to be quite safe. Interestingly
cordless phone manufacturers do not state the output of their phones in
the specifications.

... snip...

Stowe School, the Buckinghamshire public school, also removed part of
its wireless network after a teacher became ill. Michael Bevington, a
classics teacher for 28 years at the school, said that he had such a
violent reaction to the network that he was too ill to teach.

"I felt a steadily widening range of unpleasant effects whenever I was
in the classroom," he said. "First came a thick headache, then pains
throughout the body, sudden flushes, pressure behind the eyes, sudden
skin pains and burning sensations, along with bouts of nausea. Over the
weekend, away from the classroom, I felt completely normal."

quoted from: http://www.emfacts.com/weblog/?p=592

----

see also: http://www.emfacts.com/weblog/?cat=29


Those two non-scientific references tell the story--there is (AFAIK)
no evidence that this is a problem. As to the 'teacher' story, it's
easy to see what the *real* story is... <g> A teaching 'classics' for
28 years you have to believe he's a very computer oriented person who
wanted computers in his classroom! (NOT!)

Here's a test to show how insignificant the radiation from a DECT or even
cell phone can be.

Get a large bowl of cold spaghetti (about the size of a human brain) and
whack it in the microwave oven for 5 minutes at high power.

Once done, dig into the middle of the spaghetti and you will find it is
cold, or at least much colder than the surrrounding spag.

That spaghetti has been bombarded by 850 watts of 2.4GHz RF and it still
didn't penetrate 7 or 8 centimeters deep into the spaghetti.

Now you can do the calculation to work out how much 1 watt, that's
1/850th
of the microwave power, will penetrate into the human brain with an 8mm
thick skull covering the grey matter.

HR

Does it actually need to penetrate the skull to do harm, or just the skin?


Take it this way, for the RF to penetrate the skull, you would feel heat
first. Microwave RF does not discriminate between brain cells and skin
cells. It hits the skin cells first. The molecules of water and fat in those
cells will absorb the alternating radio waves and heat up. For the
microwaves to penetrate your skull, the RF energy would have to be at such a
level that you would feel pain first. If you are feeling pain or any other
symptoms when using a cordless phone, I would say it is a psychosomatic
response to your concerns.

That's a good theory, and you may be right, except that I had no
anticipation of any problem with them until i experienced the symptoms.

But there was a case in the US where a woman real estate agent who used
her mobile continually for her job developed a brain tumour, and sued
Motorola. In the court case evidence was presented that the site of the
tumour was directly opposite where the phone antenna was positioned when
using it. And the other aspect of course is that phones (especially
mobiles) are used frequently and repetitiously, and the experts are
suggesting that it may take in excess of a decade for any effects to begin
to appear.


Microwave RF is basically light - it's either on or off, so it can't have a
cumulative affect.

Unfortunately I don't know much about this subject. X-rays for example
are cumulative.

Can you provide a link to the case above case. If it
happened in the US, I would treat it with a bit of suspicion.

Tried, but can't find anything. It was a media report several years old now.

FYI, I have been using handheld cell phones since 1989, bought the first
PAMTS Walkabout MK2 hand held and have used various handheld units since.

My first was a Motorola analogue 'bag' phone.

I
make lengthy phone calls with the phone to my ear. I don't seem to have any
side effects and rarely get head aches.

We're not all the same. Many ppl do. I've had the cordless phones
switched on for about an hour now, and have a constant headache. But the
jury's still out. I'll need to do some more 'testing'. Also noteworthy
is that I've had a cordless analogue phone for years. Haven't had a
problem with that.

HR

--

rgds,

Pete
=====
http://pw352.blogspot.com/
'Publik educazion iz jus good ass prrivat!!'

 

[HeadRush]

"Mr.T" <MrT@home> wrote in message
news:45ca9b27$0$11603$afc38c87@news.optusnet.com.au...

"HeadRush" <( . )( . )@(_!_).com> wrote in message
news:45c9c794$0$5748$afc38c87@news.optusnet.com.au...
Take it this way, for the RF to penetrate the skull, you would feel heat
first. Microwave RF does not discriminate between brain cells and skin
cells. It hits the skin cells first. The molecules of water and fat in
those
cells will absorb the alternating radio waves and heat up. For the
microwaves to penetrate your skull, the RF energy would have to be at
such
a
level that you would feel pain first.

You are assuming *your* brain is no more sensitive than your skin.
That may not be the case for others.

Whether it is more sensitive or not, the microwaves have to get to the brain
first. The brain does not have pain receptors, the skin does.

Besides, your brain has a much higher moisture content than your skin, or
skull.

Your skull is made of not only calcium, but phosphorus and other minerals
which block the microwaves from reaching the brain even more.

HR

 

[Rod Speed]

Mr.T <MrT@home> wrote

Michael <michael@yahoo.com> wrote

When switching it off, the headache effect and
light headedness diminishes almost immediately.

So it cant be due to the DECT phone.

(There are other effects that I'm reluctant to
mention for fear of being considered crazy!)

Yeah, those voices in the head can be a tad of a giveaway.

Rubbish, its just your psychologic condition

In your "well researched" opinion.

Nope. No one has ever established ANY health effects with a proper double blind trial.

No opinion involved what so ever.

Fact is that WDECT phones operate at much the same frequency as
microwave ovens, and DO emit radiation an inch or two from the brain.

Pity no one has ever established ANY health effects with a proper double blind trial.

I for one get headaches when I use one for more than a few minutes,

Bet you cant substantiate that claim with a proper double blind trial.

but unfortunately they don't stop when I switch it off.

Do the decent thing and top yourself or sumfin.

However I'm sure not everyone is necessarily affected in the same way.

Corse they arent.

I do doubt there is any problem just having
one on standby in the same room though.

There isnt any problem with using one either except in your pathetic little fetid imagination.

 

[Rod Speed]

Mr.T <MrT@home> wrote:

"PeterD" <peter2@hipson.net> wrote in message
news:n9qks2dur34q9nuif4qrq9kknqbcon596j@4ax.com...
I'm surprised that no one caught on the OP's comment that with the
phone near his head he felt considerable RF heating! There is a
simple matter of physics involved--you can't get more energy out
than you put in. The amount of power to 'heat his head' to the
extent he indicates (causing physical discomfort and a three day
headache) would require many watts of power, perhaps 50 to 100 watts
(realize that over 50% would be lost since it is radiated
omnidirectionally.)

To totally fry his brain maybe.

He hasnt got one, just ear to ear dog shit.

(I guess yours is just not very sensitive.

And yours is ear to ear dog shit.

 

[Rod Speed]

Mr.T <MrT@home> wrote

PeterD <peter2@hipson.net> wrote

No, it's likely people believing things that are
not based on any evidence what so ever.

Yes, just like asbestos, everything is safe until proven otherwise?

Nope, its obvious that swan dives off tall buildings without
a parachute will produce significant health problems.

Shame about the people who die in the meantime I guess.

Just as long as its fools like you.

Brain tumours do seem to be on the increase though,

Pig ignorant lie.

we just don't have a *proven* cause yet.

Dont need a cause when there has been no increase.

 

[Rod Speed]

lynx <none@nothere.com> wrote:

HeadRush wrote:

sorry..nearly missed your post.

"lynx" <none@nothere.com> wrote in message
news:12sjbrfpb9ccc06@news.supernews.com...

HeadRush wrote:

"PeterD" <peter2@hipson.net> wrote in message
news:gr3hs258bapmpq3snhsh99rqs49tq7mfjh@4ax.com...

On Tue, 06 Feb 2007 23:20:28 +1100, lynx <none@nothere.com> wrote:

Any comment appreciated re this subject.

I contacted Uniden, one of the largest manufacturers of DECT
cordless phones, and they informed me that the output of their
phones is typically 80mw, which they consider to be quite safe.
Interestingly cordless phone manufacturers do not state the
output of their phones in the specifications.

... snip...

Stowe School, the Buckinghamshire public school, also removed
part of its wireless network after a teacher became ill. Michael
Bevington, a classics teacher for 28 years at the school, said
that he had such a violent reaction to the network that he was
too ill to teach. "I felt a steadily widening range of unpleasant effects whenever
I was in the classroom," he said. "First came a thick headache,
then pains throughout the body, sudden flushes, pressure behind
the eyes, sudden skin pains and burning sensations, along with
bouts of nausea. Over the weekend, away from the classroom, I
felt completely normal." quoted from: http://www.emfacts.com/weblog/?p=592

----

see also: http://www.emfacts.com/weblog/?cat=29


Those two non-scientific references tell the story--there is
(AFAIK) no evidence that this is a problem. As to the 'teacher'
story, it's easy to see what the *real* story is... <g> A
teaching 'classics' for 28 years you have to believe he's a very
computer oriented person who wanted computers in his classroom!
(NOT!)
Here's a test to show how insignificant the radiation from a DECT
or even cell phone can be.

Get a large bowl of cold spaghetti (about the size of a human
brain) and whack it in the microwave oven for 5 minutes at high
power. Once done, dig into the middle of the spaghetti and you will find
it is cold, or at least much colder than the surrrounding spag.

That spaghetti has been bombarded by 850 watts of 2.4GHz RF and it
still didn't penetrate 7 or 8 centimeters deep into the spaghetti.

Now you can do the calculation to work out how much 1 watt, that's
1/850th
of the microwave power, will penetrate into the human brain with
an 8mm thick skull covering the grey matter.

HR

Does it actually need to penetrate the skull to do harm, or just
the skin?

Take it this way, for the RF to penetrate the skull, you would feel
heat first. Microwave RF does not discriminate between brain cells
and skin cells. It hits the skin cells first. The molecules of water
and fat in those cells will absorb the alternating radio waves and
heat up. For the microwaves to penetrate your skull, the RF energy
would have to be at such a level that you would feel pain first. If
you are feeling pain or any other symptoms when using a cordless
phone, I would say it is a psychosomatic response to your concerns.

That's a good theory, and you may be right, except that I had no
anticipation of any problem with them until i experienced the symptoms.

Just a coincidence.

But there was a case in the US where a woman real estate agent who
used her mobile continually for her job developed a brain tumour,
and sued Motorola. In the court case evidence was presented that
the site of the tumour was directly opposite where the phone
antenna was positioned when using it. And the other aspect of
course is that phones (especially mobiles) are used frequently and
repetitiously, and the experts are suggesting that it may take in
excess of a decade for any effects to begin to appear.


Microwave RF is basically light - it's either on or off, so it
can't have a cumulative affect.

Unfortunately I don't know much about this subject.

Or any other subject either.

X-rays for example are cumulative.

Pig ignorant lie.

Can you provide a link to the case above case. If it
happened in the US, I would treat it with a bit of suspicion.

Tried, but can't find anything. It was a media report several years old now.

It happened in the US.

FYI, I have been using handheld cell phones since 1989, bought the
first PAMTS Walkabout MK2 hand held and have used various handheld
units since.

My first was a Motorola analogue 'bag' phone.

So you cant have used a hands free with that.

I make lengthy phone calls with the phone to my ear. I don't seem to have any side effects and
rarely get head aches.

We're not all the same. Many ppl do.

True in spades with fruit loops claiming that they have seen
unicorns, werewolves, that they have been abducted by aliens,
had angels spew all sorts of shit into their ear, etc etc etc.

All that proves is that there are hordes of you stupid fruit loops.

I've had the cordless phones switched on for about an hour now, and have a constant headache.

That's just another symptom of your insanity.

But the jury's still out.

There is no jury, just another fruit loop that hasnt actually got
a clue about how to test for a real or psychological effect.

I'll need to do some more 'testing'.

Not even possible for you to do the only test that matters, a proper double blind trial.

Also noteworthy is that I've had a cordless analogue phone for years. Haven't had a problem with
that.

Pity that those produce a lot more RF 'radiation' than a DECT phone does.

 

[Mr.T]

"HeadRush" <( . )( . )@(_!_).com> wrote in message
news:45cadd23$0$9775$afc38c87@news.optusnet.com.au...

Your skull is made of not only calcium, but phosphorus and other minerals
which block the microwaves from reaching the brain even more.

Just as well or death might be instantaneous

Still, the whole world once "knew" the earth was flat too.
Smart people don't assume they know everything.

MrT.

 

[Clockmeister]

"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:5305hmF1q4vqfU1@mid.individual.net...

Mr.T <MrT@home> wrote
Michael <michael@yahoo.com> wrote

When switching it off, the headache effect and
light headedness diminishes almost immediately.

So it cant be due to the DECT phone.

(There are other effects that I'm reluctant to
mention for fear of being considered crazy!)

Yeah, those voices in the head can be a tad of a giveaway.

Rubbish, its just your psychologic condition

In your "well researched" opinion.

Nope. No one has ever established ANY health effects with a proper double
blind trial.

No opinion involved what so ever.

Fact is that WDECT phones operate at much the same frequency as
microwave ovens, and DO emit radiation an inch or two from the brain.

Pity no one has ever established ANY health effects with a proper double
blind trial.

Though I agree, where are the results of the trials that back up your
assertion?

 

[Matt2 - Amstereo]

Obviously you don't realise the significance of the frequencies used in each
case.

MrT.

1.8 - 1.9 Ghz in both cases, except when a gsm phone is on 900 Mhz

 

[Rod Speed]

Clockmeister <whowhere@andwhy.com> wrote

Rod Speed <rod.speed.aaa@gmail.com> wrote
Mr.T <MrT@home> wrote
Michael <michael@yahoo.com> wrote

When switching it off, the headache effect and
light headedness diminishes almost immediately.

So it cant be due to the DECT phone.

(There are other effects that I'm reluctant to
mention for fear of being considered crazy!)

Yeah, those voices in the head can be a tad of a giveaway.

Rubbish, its just your psychologic condition

In your "well researched" opinion.

Nope. No one has ever established ANY health effects with a proper double blind trial.

No opinion involved what so ever.

Fact is that WDECT phones operate at much the same frequency as
microwave ovens, and DO emit radiation an inch or two from the brain.

Pity no one has ever established ANY health effects with a proper double blind trial.

Though I agree, where are the results of the trials that back up your assertion?

Even a stupid car crashing fuckwit should be able to do better than that pathetic effort, child.

 

[Rod Speed]

Mr.T <MrT@home> wrote:

"HeadRush" <( . )( . )@(_!_).com> wrote in message
news:45cadd23$0$9775$afc38c87@news.optusnet.com.au...
Your skull is made of not only calcium, but phosphorus and other
minerals which block the microwaves from reaching the brain even
more.

Just as well or death might be instantaneous

Still, the whole world once "knew" the earth was flat too.
Smart people don't assume they know everything.

Smart people have noticed that double blind trials
separate what is actually happening from fantasy.

 

[HeadRush]

"lynx" <none@nothere.com> wrote in message
news:12snghh9avnmhb3@news.supernews.com...

What explanation do you have then? This is a known phenomenon.


Like in a 700 watt microwave oven?

I meant actually what explanation do you have for the heating effect that
I and others experience when using a mobile phone, if it's 'physically'
impossible?

I get a "warm" ear when I use my DECT and GSM phone. But I don't think it's
caused by the radio waves, it's caused by the movement and pressure of the
phone rubbing against my ear and surrounds. The tell-tale sign that I've
been gas-bagging on the phone is my one glowing red ear.

I bet if you walked around with a TV remote control pressed against your ear
for 10 minutes you'd feel a heating sensation. Your head and ears have a lot
of nerves, blood vessels and pressure points that can trigger various
sensations. I know of a few tradesman who idiotically will not wear ear
protection because they get headaches from the pressure of the headband and
ear cups.

HR

 

[lynx]

HeadRush wrote:

"lynx" <none@nothere.com> wrote in message
news:12snghh9avnmhb3@news.supernews.com...


What explanation do you have then? This is a known phenomenon.

Like in a 700 watt microwave oven?

I meant actually what explanation do you have for the heating effect that
I and others experience when using a mobile phone, if it's 'physically'
impossible?


I get a "warm" ear when I use my DECT and GSM phone. But I don't think it's
caused by the radio waves, it's caused by the movement and pressure of the
phone rubbing against my ear and surrounds. The tell-tale sign that I've
been gas-bagging on the phone is my one glowing red ear.

I had considered that possibility. There are however two considerations.
One, I don't press the phone against my ear, I hold it very lightly, and
two, in my case the pain effect was in the area behind the ear and
extending into the cheek and jaw. I do experience the effect that you
describe when using a corded phone, but without the associated
discomfort of the surrounding area of the ear, and the headache. If I
have to use a mobile to my ear, I just turn the volume full on, and hold
it several centimetres away.

I bet if you walked around with a TV remote control pressed against your ear
for 10 minutes you'd feel a heating sensation. Your head and ears have a lot
of nerves, blood vessels and pressure points that can trigger various
sensations. I know of a few tradesman who idiotically will not wear ear
protection because they get headaches from the pressure of the headband and
ear cups.

Interesting.

HR

--

rgds,

Pete
=====
http://pw352.blogspot.com/
'I lose my weight, but it keeps finding me again!'

 

[Mr.T]

"Trevor Wilson" <trevor@SPAMBLOCKrageaudio.com.au> wrote in message
news:45ca461f$0$16371$88260bb3@free.teranews.com...

**Yep. The statistics show that smokers die earlier and by a range of
interesting diseases.

Yep, and people smoking 200 years ago didn't know that. I wonder how many
would NOT have dismissed any risks?

Asbestos has been a known carcinogen for at leat 100 years.

Yep, and people were still disputing it 40 years ago. Just like you are
doing now, they claimed there was no proof. At least none they would accept.
Fortunately James Hardie has now learnt an expensive lesson why that is not
necessarily the best policy.

Despite several trials, there is no proven link between DECT 'phones
and any harmful effects.

Ah, there's the rub, "several trials" do not PROVE a negative. Simply that
no one has conclusively proven the positive, YET.

Trials need to be CAREFULLY performed. Anecdotes don't count.

Exactly, they don't prove anything is safe either, just because the dangers
are not yet understood (if indeed there are any)
A real scientist remains open minded when there is insufficient proof one
way or the other.

MrT.

 

[Mr.T]

"PeterD" <peter2@hipson.net> wrote in message
newsvcms2henhbgohaa21ev9kso7ua4q44k4m@4ax.com...

One doesn't get that much heat from a watt of power... Say the phone
puts out 2 watts of power (I'd be surprised if it is even close to a
watt, myself). Say 1 watt is absorbed by the head, over a hemisphere
with a radius of 2 inches. That results in a volume of about 15 cubic
inches.

Now put a watt into 15 cubic inches of water, and what heating effects
do you get? You can, I suppose, assume it is perfectly insulated, so
there is no heat loss, but that's not going to be true. In fact, the
head is liquid cooled (fairly efficiently at these rates), so maybe
just take that 15 cubic inches of water and put it on a table.

In the end, you'll notice no appreciable heat buildup in the water
from that one watt of power.

And you KNOW that is the only POSSIBLE cause for ANY possible biological
effects, HOW exactly?

MrT.

 

[Mr.T]

"Matt2 - Amstereo" <amstereo@ToptusDOTcomDOTau> wrote in message
news:45cb99b2$0$9775$afc38c87@news.optusnet.com.au...

1.8 - 1.9 Ghz in both cases, except when a gsm phone is on 900 Mhz

And the fact that WDECT is usually 2.4GHz. But then that would actually mean
*different* in most cases wouldn't it?

MrT.

 

[Clockmeister]

"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:531rv7F1qpit5U1@mid.individual.net...

Clockmeister <whowhere@andwhy.com> wrote
Rod Speed <rod.speed.aaa@gmail.com> wrote
Mr.T <MrT@home> wrote
Michael <michael@yahoo.com> wrote

When switching it off, the headache effect and
light headedness diminishes almost immediately.

So it cant be due to the DECT phone.

(There are other effects that I'm reluctant to
mention for fear of being considered crazy!)

Yeah, those voices in the head can be a tad of a giveaway.

Rubbish, its just your psychologic condition

In your "well researched" opinion.

Nope. No one has ever established ANY health effects with a proper
double blind trial.

No opinion involved what so ever.

Fact is that WDECT phones operate at much the same frequency as
microwave ovens, and DO emit radiation an inch or two from the brain.

Pity no one has ever established ANY health effects with a proper double
blind trial.

Though I agree, where are the results of the trials that back up your
assertion?

Even a stupid car crashing fuckwit should be able to do better than that
pathetic effort, child.

Why the insult? So you have nothing to back up the assertion that no one
has ever established ANY health effects with a proper double blind trial?

It's a genuine question

 

[Justin]

"Clockmeister" <whowhere@andwhy.com> wrote in message
news:12sogk7rhsmv6d2@corp.supernews.com...
|
| "Rod Speed" <rod.speed.aaa@gmail.com> wrote in message

| >
| > Even a stupid car crashing fuckwit should be able to do better than that
| > pathetic effort, child.
|
| Why the insult? So you have nothing to back up the assertion that no one
| has ever established ANY health effects with a proper double blind trial?
|
| It's a genuine question
|
|
|
|


Because that's all our beloved Roddles knows, don't take it personally,
you're not alone...

 

[lynx]

Mr.T wrote:

"Matt2 - Amstereo" <amstereo@ToptusDOTcomDOTau> wrote in message
news:45cb99b2$0$9775$afc38c87@news.optusnet.com.au...

1.8 - 1.9 Ghz in both cases, except when a gsm phone is on 900 Mhz


And the fact that WDECT is usually 2.4GHz. But then that would actually mean
*different* in most cases wouldn't it?

And now 5.8 Ghz, which is what mine is.

MrT.

--

rgds,

Pete
=====
http://pw352.blogspot.com/
'I don't have a solution but I admire the problem'

 

[HeadRush]

"lynx" <none@nothere.com> wrote in message
news:12sonaqq0mc0va7@news.supernews.com...

Mr.T wrote:

"Matt2 - Amstereo" <amstereo@ToptusDOTcomDOTau> wrote in message
news:45cb99b2$0$9775$afc38c87@news.optusnet.com.au...

1.8 - 1.9 Ghz in both cases, except when a gsm phone is on 900 Mhz


And the fact that WDECT is usually 2.4GHz. But then that would actually
mean
*different* in most cases wouldn't it?


And now 5.8 Ghz, which is what mine is.

If you have these concerns and have felt the symptoms with mobile phones,
why did you buy a 5.8GHz cordless phone?

HR