Macbook Pros/laptops - questions about speakers, etc.

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Svetaswan-2

Macbook Pros/laptops - questions about speakers, etc.

Hi,

Yesterday, I was in the Apple Store again, looking at Macbooks (I know - don't ask). I was trying to compare the 13" Macbook Pro and the 15" Macbook Pro on a few features - among them being how "symptomatic" each made me feel. I'm not 100% sure of this, but it seemed that I could "feel" whatever "spirits" were coming from the 15" more - which I guess is not surprising. Besides being bigger, having a more powerful processor & graphics card and all that - I also noticed that it seemed to have more powerful/bigger speakers inside of the chassis. I could put my hand on the right side of the body (to the right of the trackpad), and could feel the speakers vibrating as a YouTube video played. I didn't feel any such vibrations on the 13".

I haven't come across anything really definitive - but from what I've seen via Google, the 15" Macbook Pro does indeed have bigger/"better"/more powerful speakers - with some sort of subwoofer (although the subwoofer may be small). My question is - would the speakers contribute to any emr or emf? Could these speakers contribute to any discomfort an electrosensitive may feel?

I remember Eli referring to how bad the Macbook Pro's AC magnetic field is - could its speakers contribute to this field?

Also, would someone be able to feel the difference between a 15" Macbook Pro with a 2.4 GHz processor (Core i5) and a 15" Macbook Pro with a 2.53 GHz processor (also Core i5) - while doing ordinary things like websurfing, watching YouTube? I couldn't compare these two Macbooks because only the 2.53 GHz version was on display. Maybe the 2.4 GHz is a little better, I don't know.

I really prefer a laptop with a 15" screen size - but for Macbooks, you have to *pay* in a lot of ways to get this screen size.

I also repeated the AM radio test - and again, the Macbooks tested remarkably well. The radio picked up nothing - not even when I dimmed the screens. And this was a different Apple Store than the one where I did the previous AM tests at.

~Svetaswan

BiBrun

Re: Macbook Pros/laptops - questions about speakers, etc.

That's amazing about the AM radio test. Conceivably they have
moved all the frequencies above 1.7 MHz. Should try an AirBand
radio. Or the MFJ-856. (mfjenterprises.com). I've heard there is
some engineer at Apple who is EHS. Maybe they've seen the light
(but I doubt it; the unibody mac book I have used (~2 years old) is
terrible.

2.4 GHz is the same as a microwave oven, and wi-fi. It might be
wise to stay away from that frequency unless you have found
(remarkably) that those don't bother you. Also a lot of cordless phones
use that frequency.

Speakers can be a factor. They have coils and usually some RF gets to them
despite the filters. Subwoofers are usually the worst.

On Tue, Nov 30, 2010 at 7:17 AM, svetaswan <[hidden email]> wrote:

>
>
> Hi,
>
> Yesterday, I was in the Apple Store again, looking at Macbooks (I know -
> don't ask). I was trying to compare the 13" Macbook Pro and the 15" Macbook
> Pro on a few features - among them being how "symptomatic" each made me
> feel. I'm not 100% sure of this, but it seemed that I could "feel" whatever
> "spirits" were coming from the 15" more - which I guess is not surprising.
> Besides being bigger, having a more powerful processor & graphics card and
> all that - I also noticed that it seemed to have more powerful/bigger
> speakers inside of the chassis. I could put my hand on the right side of the
> body (to the right of the trackpad), and could feel the speakers vibrating
> as a YouTube video played. I didn't feel any such vibrations on the 13".
>
> I haven't come across anything really definitive - but from what I've seen
> via Google, the 15" Macbook Pro does indeed have bigger/"better"/more
> powerful speakers - with some sort of subwoofer (although the subwoofer may
> be small). My question is - would the speakers contribute to any emr or emf?
> Could these speakers contribute to any discomfort an electrosensitive may
> feel?
>
> I remember Eli referring to how bad the Macbook Pro's AC magnetic field is
> - could its speakers contribute to this field?
>
> Also, would someone be able to feel the difference between a 15" Macbook
> Pro with a 2.4 GHz processor (Core i5) and a 15" Macbook Pro with a 2.53 GHz
> processor (also Core i5) - while doing ordinary things like websurfing,
> watching YouTube? I couldn't compare these two Macbooks because only the
> 2.53 GHz version was on display. Maybe the 2.4 GHz is a little better, I
> don't know.
>
> I really prefer a laptop with a 15" screen size - but for Macbooks, you
> have to *pay* in a lot of ways to get this screen size.
>
> I also repeated the AM radio test - and again, the Macbooks tested
> remarkably well. The radio picked up nothing - not even when I dimmed the
> screens. And this was a different Apple Store than the one where I did the
> previous AM tests at.
>
> ~Svetaswan
>
>
>

[Non-text portions of this message have been removed]

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charles-4

Re: Macbook Pros/laptops - questions about speakers, etc.

My Acer 26" monitor has very wide and high peaks at around 4.5 MHz.

Greetings,
Charles Claessens
member Verband Baubiologie
www.milieuziektes.nl
www.milieuziektes.be
www.hetbitje.nl
checked by Norton

----- Original Message -----
From: Bill Bruno
To: [hidden email]
Sent: Tuesday, November 30, 2010 4:59 PM
Subject: Re: [eSens] Macbook Pros/laptops - questions about speakers, etc.

That's amazing about the AM radio test. Conceivably they have
moved all the frequencies above 1.7 MHz. Should try an AirBand
radio. Or the MFJ-856. (mfjenterprises.com). I've heard there is
some engineer at Apple who is EHS. Maybe they've seen the light
(but I doubt it; the unibody mac book I have used (~2 years old) is
terrible.

2.4 GHz is the same as a microwave oven, and wi-fi. It might be
wise to stay away from that frequency unless you have found
(remarkably) that those don't bother you. Also a lot of cordless phones
use that frequency.

Speakers can be a factor. They have coils and usually some RF gets to them
despite the filters. Subwoofers are usually the worst.

On Tue, Nov 30, 2010 at 7:17 AM, svetaswan <[hidden email]> wrote:

>
>
> Hi,
>
> Yesterday, I was in the Apple Store again, looking at Macbooks (I know -
> don't ask). I was trying to compare the 13" Macbook Pro and the 15" Macbook
> Pro on a few features - among them being how "symptomatic" each made me
> feel. I'm not 100% sure of this, but it seemed that I could "feel" whatever
> "spirits" were coming from the 15" more - which I guess is not surprising.
> Besides being bigger, having a more powerful processor & graphics card and
> all that - I also noticed that it seemed to have more powerful/bigger
> speakers inside of the chassis. I could put my hand on the right side of the
> body (to the right of the trackpad), and could feel the speakers vibrating
> as a YouTube video played. I didn't feel any such vibrations on the 13".
>
> I haven't come across anything really definitive - but from what I've seen
> via Google, the 15" Macbook Pro does indeed have bigger/"better"/more
> powerful speakers - with some sort of subwoofer (although the subwoofer may
> be small). My question is - would the speakers contribute to any emr or emf?
> Could these speakers contribute to any discomfort an electrosensitive may
> feel?
>
> I remember Eli referring to how bad the Macbook Pro's AC magnetic field is
> - could its speakers contribute to this field?
>
> Also, would someone be able to feel the difference between a 15" Macbook
> Pro with a 2.4 GHz processor (Core i5) and a 15" Macbook Pro with a 2.53 GHz
> processor (also Core i5) - while doing ordinary things like websurfing,
> watching YouTube? I couldn't compare these two Macbooks because only the
> 2.53 GHz version was on display. Maybe the 2.4 GHz is a little better, I
> don't know.
>
> I really prefer a laptop with a 15" screen size - but for Macbooks, you
> have to *pay* in a lot of ways to get this screen size.
>
> I also repeated the AM radio test - and again, the Macbooks tested
> remarkably well. The radio picked up nothing - not even when I dimmed the
> screens. And this was a different Apple Store than the one where I did the
> previous AM tests at.
>
> ~Svetaswan
>
>
>

[Non-text portions of this message have been removed]

------------------------------------

Yahoo! Groups Links

[Non-text portions of this message have been removed]

jaime_schunkewitz

Re: Macbook Pros/laptops - questions about speakers, etc.

There's something wrong with your AM radio test.
I detect plenty of noise from my brother's 17"
MacBook Pro with an i7 processor. That machine is
lethal.

Eli

--- In [hidden email], "charles" <charles@...> wrote:

>
> My Acer 26" monitor has very wide and high peaks at around 4.5 MHz.
>
> Greetings,
> Charles Claessens
> member Verband Baubiologie
> www.milieuziektes.nl
> www.milieuziektes.be
> www.hetbitje.nl
> checked by Norton
>
> ----- Original Message -----
> From: Bill Bruno
> To: [hidden email]
> Sent: Tuesday, November 30, 2010 4:59 PM
> Subject: Re: [eSens] Macbook Pros/laptops - questions about speakers, etc.
>
>
> That's amazing about the AM radio test. Conceivably they have
> moved all the frequencies above 1.7 MHz. Should try an AirBand
> radio. Or the MFJ-856. (mfjenterprises.com). I've heard there is
> some engineer at Apple who is EHS. Maybe they've seen the light
> (but I doubt it; the unibody mac book I have used (~2 years old) is
> terrible.
>
> 2.4 GHz is the same as a microwave oven, and wi-fi. It might be
> wise to stay away from that frequency unless you have found
> (remarkably) that those don't bother you. Also a lot of cordless phones
> use that frequency.
>
> Speakers can be a factor. They have coils and usually some RF gets to them
> despite the filters. Subwoofers are usually the worst.
>
>
>
> On Tue, Nov 30, 2010 at 7:17 AM, svetaswan <svetaswan@...> wrote:
>
> >
> >
> > Hi,
> >
> > Yesterday, I was in the Apple Store again, looking at Macbooks (I know -
> > don't ask). I was trying to compare the 13" Macbook Pro and the 15" Macbook
> > Pro on a few features - among them being how "symptomatic" each made me
> > feel. I'm not 100% sure of this, but it seemed that I could "feel" whatever
> > "spirits" were coming from the 15" more - which I guess is not surprising.
> > Besides being bigger, having a more powerful processor & graphics card and
> > all that - I also noticed that it seemed to have more powerful/bigger
> > speakers inside of the chassis. I could put my hand on the right side of the
> > body (to the right of the trackpad), and could feel the speakers vibrating
> > as a YouTube video played. I didn't feel any such vibrations on the 13".
> >
> > I haven't come across anything really definitive - but from what I've seen
> > via Google, the 15" Macbook Pro does indeed have bigger/"better"/more
> > powerful speakers - with some sort of subwoofer (although the subwoofer may
> > be small). My question is - would the speakers contribute to any emr or emf?
> > Could these speakers contribute to any discomfort an electrosensitive may
> > feel?
> >
> > I remember Eli referring to how bad the Macbook Pro's AC magnetic field is
> > - could its speakers contribute to this field?
> >
> > Also, would someone be able to feel the difference between a 15" Macbook
> > Pro with a 2.4 GHz processor (Core i5) and a 15" Macbook Pro with a 2.53 GHz
> > processor (also Core i5) - while doing ordinary things like websurfing,
> > watching YouTube? I couldn't compare these two Macbooks because only the
> > 2.53 GHz version was on display. Maybe the 2.4 GHz is a little better, I
> > don't know.
> >
> > I really prefer a laptop with a 15" screen size - but for Macbooks, you
> > have to *pay* in a lot of ways to get this screen size.
> >
> > I also repeated the AM radio test - and again, the Macbooks tested
> > remarkably well. The radio picked up nothing - not even when I dimmed the
> > screens. And this was a different Apple Store than the one where I did the
> > previous AM tests at.
> >
> > ~Svetaswan
> >
> >
> >
>
>
> [Non-text portions of this message have been removed]
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
>
>
> [Non-text portions of this message have been removed]
>

Svetaswan-2

Re: Macbook Pros/laptops - questions about speakers, etc.

In reply to this post by BiBrun

That's what I was thinking - that it's possible that the emitted frequencies are beyond the range where a basic AM radio could detect. But I don't have the money to spend on higher-tech, more capable sensors. Unless those radios you mentioned are sufficiently inexpensive...

Could it also be that Apple dims their monitors by increasing the "black level", instead of dimming the backlight? I've recently noticed that many LCD TVs on the market have separate "Backlight" and "Brightness" controls - so that it's possible to lower the brightness of the TV without messing with the backlight (thus saving us from the emf-producing "chopping" mechanism). Maybe Apple employs technology along the same lines?

I'm not really sure if the frequency of the processor affects me - I mean, it's totally possible, but it could be other things about a laptop that factor more into my sensitivity. Four or so years ago, I bought a 5.8 GHz cordless phone system (w/ base station & remote handset) for our home, and to this day I've never really "felt" it or have had any overt problems with it. (Maybe because I'm not on the phone that much?) I didn't even "feel" our old WiFi (Comcast) - unless I got very close to the router.

I could be rationalizing, though. For someone like me - who needs the assurance of technical support options - there is little choice out there but Dell and Apple. And I thought Apple would have the advantage over most PCs anyway - because their operating system is less "bloated" and is custom fit for the hardware, and would be less taxing on the hardware (making the hardware not work as hard and making the hardware less likely to "heat up"). And, of course - PCs are more prone to viruses, malware - and both viruses/malware and the software used to combat them can be taxing on the hardware. The less hard a computer has to work, the less emr, right? Or is it that simple? Please correct me if I'm wrong - because my current line of thinking is that even if a certain PC is "more comfortable" than a Mac when new - it may not remain that way as the different "issues" (malware, bloated antivirus software, etc.) accumulate over the years.

There seem to be fewer and fewer options out there for "slower" processors - unless you get a small netbook, or take a risk on a used computer. Apple uses slower processors in their Macbook Airs - but the Airs screens are smaller than I would like and from my experience, Macbook Airs aren't necessarily better for me from an e.s. standpoint.

And from my experience with my Dell laptop - there seems to be a direct relationship between how hot the laptop gets and how severe my symptoms are. (I've found that just elevating the laptop so that there is more space between its bottom and the table has given me some relief - I can feel the effects almost immediately.) I found this website that incorprates temperature measurements in their reviews of many laptops - and, according to this site, the Macbook Pro has some of the coolest temperatures on the market - at least along its top surface. It does tend to get hotter (relative to some other laptops) along its bottom - but, to me, that might be a good thing. It signals that the laptop is designed so that the heat "sinks" toward the bottom instead of remaining on the surface or escaping through the top - where I am more likely to "feel" it. If I elevate the laptop or get one of those laptop "cooling" stands that might serve as an additional "heat sink", it might make things (even) better.

Here is the site that gives laptop temps - they reviewed the Core i7 version of the Macbook Pro, so the Core i5s might be even cooler:

http://www.laptopmag.com/review/laptops/apple-macbook-pro-15-inch-core-i7.aspx?page=1

~Svetaswan

--- In [hidden email], Bill Bruno <wbruno@...> wrote:

>
> That's amazing about the AM radio test. Conceivably they have
> moved all the frequencies above 1.7 MHz. Should try an AirBand
> radio. Or the MFJ-856. (mfjenterprises.com). I've heard there is
> some engineer at Apple who is EHS. Maybe they've seen the light
> (but I doubt it; the unibody mac book I have used (~2 years old) is
> terrible.
>
> 2.4 GHz is the same as a microwave oven, and wi-fi. It might be
> wise to stay away from that frequency unless you have found
> (remarkably) that those don't bother you. Also a lot of cordless phones
> use that frequency.
>
> Speakers can be a factor. They have coils and usually some RF gets to them
> despite the filters. Subwoofers are usually the worst.
>
>
>
> On Tue, Nov 30, 2010 at 7:17 AM, svetaswan <svetaswan@...> wrote:
>
> >
> >
> > Hi,
> >
> > Yesterday, I was in the Apple Store again, looking at Macbooks (I know -
> > don't ask). I was trying to compare the 13" Macbook Pro and the 15" Macbook
> > Pro on a few features - among them being how "symptomatic" each made me
> > feel. I'm not 100% sure of this, but it seemed that I could "feel" whatever
> > "spirits" were coming from the 15" more - which I guess is not surprising.
> > Besides being bigger, having a more powerful processor & graphics card and
> > all that - I also noticed that it seemed to have more powerful/bigger
> > speakers inside of the chassis. I could put my hand on the right side of the
> > body (to the right of the trackpad), and could feel the speakers vibrating
> > as a YouTube video played. I didn't feel any such vibrations on the 13".
> >
> > I haven't come across anything really definitive - but from what I've seen
> > via Google, the 15" Macbook Pro does indeed have bigger/"better"/more
> > powerful speakers - with some sort of subwoofer (although the subwoofer may
> > be small). My question is - would the speakers contribute to any emr or emf?
> > Could these speakers contribute to any discomfort an electrosensitive may
> > feel?
> >
> > I remember Eli referring to how bad the Macbook Pro's AC magnetic field is
> > - could its speakers contribute to this field?
> >
> > Also, would someone be able to feel the difference between a 15" Macbook
> > Pro with a 2.4 GHz processor (Core i5) and a 15" Macbook Pro with a 2.53 GHz
> > processor (also Core i5) - while doing ordinary things like websurfing,
> > watching YouTube? I couldn't compare these two Macbooks because only the
> > 2.53 GHz version was on display. Maybe the 2.4 GHz is a little better, I
> > don't know.
> >
> > I really prefer a laptop with a 15" screen size - but for Macbooks, you
> > have to *pay* in a lot of ways to get this screen size.
> >
> > I also repeated the AM radio test - and again, the Macbooks tested
> > remarkably well. The radio picked up nothing - not even when I dimmed the
> > screens. And this was a different Apple Store than the one where I did the
> > previous AM tests at.
> >
> > ~Svetaswan
> >
> >
> >
>
>
> [Non-text portions of this message have been removed]
>

Svetaswan-2

Re: Macbook Pros/laptops - questions about speakers, etc.

In reply to this post by jaime_schunkewitz

Hi Eli - I don't think there's anything wrong with my AM radio test. Just a few weeks ago, I was in Sears (again) "testing" LCD TVs, and my radio picked up some noise on at least one of the two products I was testing. And just now, my radio picked up noise on this Dell.

My radio is the recommended Radio Shack model (CAT NO. : 12-586).

Which i7 does your brother have - I think you can get up to a 2.8 GHz i7 in a Macbook, IIRC (particularly with the 17" model).

I wish Apple offered more flexibility as far as customizable options. Why do you have to buy a juiced-up beast just to get a 15" screen?

~Svetaswan

--- In [hidden email], "jaime_schunkewitz" <jaime_schunkewitz@...> wrote:

>
>
>
> There's something wrong with your AM radio test.
> I detect plenty of noise from my brother's 17"
> MacBook Pro with an i7 processor. That machine is
> lethal.
>
> Eli
>
>
> --- In [hidden email], "charles" <charles@> wrote:
> >
> > My Acer 26" monitor has very wide and high peaks at around 4.5 MHz.
> >
> > Greetings,
> > Charles Claessens
> > member Verband Baubiologie
> > www.milieuziektes.nl
> > www.milieuziektes.be
> > www.hetbitje.nl
> > checked by Norton
> >
> > ----- Original Message -----
> > From: Bill Bruno
> > To: [hidden email]
> > Sent: Tuesday, November 30, 2010 4:59 PM
> > Subject: Re: [eSens] Macbook Pros/laptops - questions about speakers, etc.
> >
> >
> > That's amazing about the AM radio test. Conceivably they have
> > moved all the frequencies above 1.7 MHz. Should try an AirBand
> > radio. Or the MFJ-856. (mfjenterprises.com). I've heard there is
> > some engineer at Apple who is EHS. Maybe they've seen the light
> > (but I doubt it; the unibody mac book I have used (~2 years old) is
> > terrible.
> >
> > 2.4 GHz is the same as a microwave oven, and wi-fi. It might be
> > wise to stay away from that frequency unless you have found
> > (remarkably) that those don't bother you. Also a lot of cordless phones
> > use that frequency.
> >
> > Speakers can be a factor. They have coils and usually some RF gets to them
> > despite the filters. Subwoofers are usually the worst.
> >
> >
> >
> > On Tue, Nov 30, 2010 at 7:17 AM, svetaswan <svetaswan@> wrote:
> >
> > >
> > >
> > > Hi,
> > >
> > > Yesterday, I was in the Apple Store again, looking at Macbooks (I know -
> > > don't ask). I was trying to compare the 13" Macbook Pro and the 15" Macbook
> > > Pro on a few features - among them being how "symptomatic" each made me
> > > feel. I'm not 100% sure of this, but it seemed that I could "feel" whatever
> > > "spirits" were coming from the 15" more - which I guess is not surprising.
> > > Besides being bigger, having a more powerful processor & graphics card and
> > > all that - I also noticed that it seemed to have more powerful/bigger
> > > speakers inside of the chassis. I could put my hand on the right side of the
> > > body (to the right of the trackpad), and could feel the speakers vibrating
> > > as a YouTube video played. I didn't feel any such vibrations on the 13".
> > >
> > > I haven't come across anything really definitive - but from what I've seen
> > > via Google, the 15" Macbook Pro does indeed have bigger/"better"/more
> > > powerful speakers - with some sort of subwoofer (although the subwoofer may
> > > be small). My question is - would the speakers contribute to any emr or emf?
> > > Could these speakers contribute to any discomfort an electrosensitive may
> > > feel?
> > >
> > > I remember Eli referring to how bad the Macbook Pro's AC magnetic field is
> > > - could its speakers contribute to this field?
> > >
> > > Also, would someone be able to feel the difference between a 15" Macbook
> > > Pro with a 2.4 GHz processor (Core i5) and a 15" Macbook Pro with a 2.53 GHz
> > > processor (also Core i5) - while doing ordinary things like websurfing,
> > > watching YouTube? I couldn't compare these two Macbooks because only the
> > > 2.53 GHz version was on display. Maybe the 2.4 GHz is a little better, I
> > > don't know.
> > >
> > > I really prefer a laptop with a 15" screen size - but for Macbooks, you
> > > have to *pay* in a lot of ways to get this screen size.
> > >
> > > I also repeated the AM radio test - and again, the Macbooks tested
> > > remarkably well. The radio picked up nothing - not even when I dimmed the
> > > screens. And this was a different Apple Store than the one where I did the
> > > previous AM tests at.
> > >
> > > ~Svetaswan
> > >
> > >
> > >
> >
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
> > ------------------------------------
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
>

BiBrun

Re: Macbook Pros/laptops - questions about speakers, etc.

So you hold the radio right up to the laptop and nothing?
Did you try both the high and low ends of the tuning dial?
Occasionally I"ve not noticed right away that the radio was
switched to FM.

On Thu, Dec 2, 2010 at 4:52 PM, svetaswan <[hidden email]> wrote:

>
>
>
>
> Hi Eli - I don't think there's anything wrong with my AM radio test. Just a
> few weeks ago, I was in Sears (again) "testing" LCD TVs, and my radio picked
> up some noise on at least one of the two products I was testing. And just
> now, my radio picked up noise on this Dell.
>
> My radio is the recommended Radio Shack model (CAT NO. : 12-586).
>
> Which i7 does your brother have - I think you can get up to a 2.8 GHz i7 in
> a Macbook, IIRC (particularly with the 17" model).
>
> I wish Apple offered more flexibility as far as customizable options. Why
> do you have to buy a juiced-up beast just to get a 15" screen?
>
> ~Svetaswan
>
>
> --- In [hidden email] <eSens%40yahoogroups.com>,
> "jaime_schunkewitz" <jaime_schunkewitz@...> wrote:
> >
> >
> >
> > There's something wrong with your AM radio test.
> > I detect plenty of noise from my brother's 17"
> > MacBook Pro with an i7 processor. That machine is
> > lethal.
> >
> > Eli
> >
> >
> > --- In [hidden email] <eSens%40yahoogroups.com>, "charles"
> <charles@> wrote:
> > >
> > > My Acer 26" monitor has very wide and high peaks at around 4.5 MHz.
> > >
> > > Greetings,
> > > Charles Claessens
> > > member Verband Baubiologie
> > > www.milieuziektes.nl
> > > www.milieuziektes.be
> > > www.hetbitje.nl
> > > checked by Norton
> > >
> > > ----- Original Message -----
> > > From: Bill Bruno
> > > To: [hidden email] <eSens%40yahoogroups.com>
> > > Sent: Tuesday, November 30, 2010 4:59 PM
> > > Subject: Re: [eSens] Macbook Pros/laptops - questions about speakers,
> etc.
> > >
> > >
> > > That's amazing about the AM radio test. Conceivably they have
> > > moved all the frequencies above 1.7 MHz. Should try an AirBand
> > > radio. Or the MFJ-856. (mfjenterprises.com). I've heard there is
> > > some engineer at Apple who is EHS. Maybe they've seen the light
> > > (but I doubt it; the unibody mac book I have used (~2 years old) is
> > > terrible.
> > >
> > > 2.4 GHz is the same as a microwave oven, and wi-fi. It might be
> > > wise to stay away from that frequency unless you have found
> > > (remarkably) that those don't bother you. Also a lot of cordless phones
> > > use that frequency.
> > >
> > > Speakers can be a factor. They have coils and usually some RF gets to
> them
> > > despite the filters. Subwoofers are usually the worst.
> > >
> > >
> > >
> > > On Tue, Nov 30, 2010 at 7:17 AM, svetaswan <svetaswan@> wrote:
> > >
> > > >
> > > >
> > > > Hi,
> > > >
> > > > Yesterday, I was in the Apple Store again, looking at Macbooks (I
> know -
> > > > don't ask). I was trying to compare the 13" Macbook Pro and the 15"
> Macbook
> > > > Pro on a few features - among them being how "symptomatic" each made
> me
> > > > feel. I'm not 100% sure of this, but it seemed that I could "feel"
> whatever
> > > > "spirits" were coming from the 15" more - which I guess is not
> surprising.
> > > > Besides being bigger, having a more powerful processor & graphics
> card and
> > > > all that - I also noticed that it seemed to have more powerful/bigger
> > > > speakers inside of the chassis. I could put my hand on the right side
> of the
> > > > body (to the right of the trackpad), and could feel the speakers
> vibrating
> > > > as a YouTube video played. I didn't feel any such vibrations on the
> 13".
> > > >
> > > > I haven't come across anything really definitive - but from what I've
> seen
> > > > via Google, the 15" Macbook Pro does indeed have bigger/"better"/more
> > > > powerful speakers - with some sort of subwoofer (although the
> subwoofer may
> > > > be small). My question is - would the speakers contribute to any emr
> or emf?
> > > > Could these speakers contribute to any discomfort an electrosensitive
> may
> > > > feel?
> > > >
> > > > I remember Eli referring to how bad the Macbook Pro's AC magnetic
> field is
> > > > - could its speakers contribute to this field?
> > > >
> > > > Also, would someone be able to feel the difference between a 15"
> Macbook
> > > > Pro with a 2.4 GHz processor (Core i5) and a 15" Macbook Pro with a
> 2.53 GHz
> > > > processor (also Core i5) - while doing ordinary things like
> websurfing,
> > > > watching YouTube? I couldn't compare these two Macbooks because only
> the
> > > > 2.53 GHz version was on display. Maybe the 2.4 GHz is a little
> better, I
> > > > don't know.
> > > >
> > > > I really prefer a laptop with a 15" screen size - but for Macbooks,
> you
> > > > have to *pay* in a lot of ways to get this screen size.
> > > >
> > > > I also repeated the AM radio test - and again, the Macbooks tested
> > > > remarkably well. The radio picked up nothing - not even when I dimmed
> the
> > > > screens. And this was a different Apple Store than the one where I
> did the
> > > > previous AM tests at.
> > > >
> > > > ~Svetaswan
> > > >
> > > >
> > > >
> > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> > >
> > >
> > > ------------------------------------
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> >
>
>
>

Svetaswan-2

Re: Macbook Pros/laptops - questions about speakers, etc.

Yes, I held the radio right up to the laptop - I may not have physically touched it with the radio (for the most part), but I put the radio right up to it.

And it crossed my mind that there was a chance that my radio was on FM - but I checked it yesterday (I had not touched the radio since my little field trip), and it was indeed on AM.

Yes, I tried both ends of of the tuning dial - I often start on the low end, and slowly move the dial (to see if I pick up any noise at *any* frequency) up toward the high end - then slowly move it back down to the low end. I often repeat the process. I did this several times - on maybe 3 or 4 different laptops - and my radio just never "pinged", so to speak - I got no sharp noises.

There seems to be too much of a pattern at this point for it to be a mistake or a lucky coincidence. Two visits to the Apple Store - testing several laptops - moving my radio up and down the dial many times over both visits - and not once do I pick up any sharp responses from my radio? Yet I can walk into a Sears, a Staples, a Best Buy - or just stay here at home and test my laptop or the new LCD TV that my parents put in the den - and my radio picks up noise? (Thankfully, the LCD TV is o.k. as long as the backlight is kept at maximum level.)

It might be that we are getting two different results from the Apple computers for whatever reason - but it's not because of any defectiveness of my radio or testing methods.

~Svetaswan

--- In [hidden email], Bill Bruno <wbruno@...> wrote:

>
> So you hold the radio right up to the laptop and nothing?
> Did you try both the high and low ends of the tuning dial?
> Occasionally I"ve not noticed right away that the radio was
> switched to FM.
>
> On Thu, Dec 2, 2010 at 4:52 PM, svetaswan <svetaswan@...> wrote:
>
> >
> >
> >
> >
> > Hi Eli - I don't think there's anything wrong with my AM radio test. Just a
> > few weeks ago, I was in Sears (again) "testing" LCD TVs, and my radio picked
> > up some noise on at least one of the two products I was testing. And just
> > now, my radio picked up noise on this Dell.
> >
> > My radio is the recommended Radio Shack model (CAT NO. : 12-586).
> >
> > Which i7 does your brother have - I think you can get up to a 2.8 GHz i7 in
> > a Macbook, IIRC (particularly with the 17" model).
> >
> > I wish Apple offered more flexibility as far as customizable options. Why
> > do you have to buy a juiced-up beast just to get a 15" screen?
> >
> > ~Svetaswan
> >
> >
> > --- In [hidden email] <eSens%40yahoogroups.com>,
> > "jaime_schunkewitz" <jaime_schunkewitz@> wrote:
> > >
> > >
> > >
> > > There's something wrong with your AM radio test.
> > > I detect plenty of noise from my brother's 17"
> > > MacBook Pro with an i7 processor. That machine is
> > > lethal.
> > >
> > > Eli
> > >
> > >
> > > --- In [hidden email] <eSens%40yahoogroups.com>, "charles"
> > <charles@> wrote:
> > > >
> > > > My Acer 26" monitor has very wide and high peaks at around 4.5 MHz.
> > > >
> > > > Greetings,
> > > > Charles Claessens
> > > > member Verband Baubiologie
> > > > www.milieuziektes.nl
> > > > www.milieuziektes.be
> > > > www.hetbitje.nl
> > > > checked by Norton
> > > >
> > > > ----- Original Message -----
> > > > From: Bill Bruno
> > > > To: [hidden email] <eSens%40yahoogroups.com>
> > > > Sent: Tuesday, November 30, 2010 4:59 PM
> > > > Subject: Re: [eSens] Macbook Pros/laptops - questions about speakers,
> > etc.
> > > >
> > > >
> > > > That's amazing about the AM radio test. Conceivably they have
> > > > moved all the frequencies above 1.7 MHz. Should try an AirBand
> > > > radio. Or the MFJ-856. (mfjenterprises.com). I've heard there is
> > > > some engineer at Apple who is EHS. Maybe they've seen the light
> > > > (but I doubt it; the unibody mac book I have used (~2 years old) is
> > > > terrible.
> > > >
> > > > 2.4 GHz is the same as a microwave oven, and wi-fi. It might be
> > > > wise to stay away from that frequency unless you have found
> > > > (remarkably) that those don't bother you. Also a lot of cordless phones
> > > > use that frequency.
> > > >
> > > > Speakers can be a factor. They have coils and usually some RF gets to
> > them
> > > > despite the filters. Subwoofers are usually the worst.
> > > >
> > > >
> > > >
> > > > On Tue, Nov 30, 2010 at 7:17 AM, svetaswan <svetaswan@> wrote:
> > > >
> > > > >
> > > > >
> > > > > Hi,
> > > > >
> > > > > Yesterday, I was in the Apple Store again, looking at Macbooks (I
> > know -
> > > > > don't ask). I was trying to compare the 13" Macbook Pro and the 15"
> > Macbook
> > > > > Pro on a few features - among them being how "symptomatic" each made
> > me
> > > > > feel. I'm not 100% sure of this, but it seemed that I could "feel"
> > whatever
> > > > > "spirits" were coming from the 15" more - which I guess is not
> > surprising.
> > > > > Besides being bigger, having a more powerful processor & graphics
> > card and
> > > > > all that - I also noticed that it seemed to have more powerful/bigger
> > > > > speakers inside of the chassis. I could put my hand on the right side
> > of the
> > > > > body (to the right of the trackpad), and could feel the speakers
> > vibrating
> > > > > as a YouTube video played. I didn't feel any such vibrations on the
> > 13".
> > > > >
> > > > > I haven't come across anything really definitive - but from what I've
> > seen
> > > > > via Google, the 15" Macbook Pro does indeed have bigger/"better"/more
> > > > > powerful speakers - with some sort of subwoofer (although the
> > subwoofer may
> > > > > be small). My question is - would the speakers contribute to any emr
> > or emf?
> > > > > Could these speakers contribute to any discomfort an electrosensitive
> > may
> > > > > feel?
> > > > >
> > > > > I remember Eli referring to how bad the Macbook Pro's AC magnetic
> > field is
> > > > > - could its speakers contribute to this field?
> > > > >
> > > > > Also, would someone be able to feel the difference between a 15"
> > Macbook
> > > > > Pro with a 2.4 GHz processor (Core i5) and a 15" Macbook Pro with a
> > 2.53 GHz
> > > > > processor (also Core i5) - while doing ordinary things like
> > websurfing,
> > > > > watching YouTube? I couldn't compare these two Macbooks because only
> > the
> > > > > 2.53 GHz version was on display. Maybe the 2.4 GHz is a little
> > better, I
> > > > > don't know.
> > > > >
> > > > > I really prefer a laptop with a 15" screen size - but for Macbooks,
> > you
> > > > > have to *pay* in a lot of ways to get this screen size.
> > > > >
> > > > > I also repeated the AM radio test - and again, the Macbooks tested
> > > > > remarkably well. The radio picked up nothing - not even when I dimmed
> > the
> > > > > screens. And this was a different Apple Store than the one where I
> > did the
> > > > > previous AM tests at.
> > > > >
> > > > > ~Svetaswan
> > > > >
> > > > >
> > > > >
> > > >
> > > >
> > > > [Non-text portions of this message have been removed]
> > > >
> > > >
> > > >
> > > > ------------------------------------
> > > >
> > > > Yahoo! Groups Links
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > [Non-text portions of this message have been removed]
> > > >
> > >
> >
> >
> >
>
>
> [Non-text portions of this message have been removed]
>

jaime_schunkewitz

Re: Macbook Pros/laptops - questions about speakers, etc.

I see. Your looking for sharp noises, whereas I'm
considering the very strong static that the laptop
produces. My Radio Shack 12-586 starts to pick up
static over 2 ft from the center of the keyboard,
whereas the Grundig mini 300 starts at 1 1/2 ft. That's
with the laptop running of the battery.

So the radio shack radio is a bit more sensitive,
however the tone of the Grundig is much better and
you can get a better sense of the severity of the
noise. It produces a much more menacing growl.

I used this laptop for a few minutes yesterday and
the ringing in my ears kept me up most of the night.
And I felt chest pains the instant it was turned
on for this test. It also pegs my Trifield (100+ mg)
just above the keyboard. This is no computer for
the hypersensitive.

Eli

--- In [hidden email], "svetaswan" <svetaswan@...> wrote:

>
>
>
> Yes, I held the radio right up to the laptop - I may not have physically touched it with the radio (for the most part), but I put the radio right up to it.
>
> And it crossed my mind that there was a chance that my radio was on FM - but I checked it yesterday (I had not touched the radio since my little field trip), and it was indeed on AM.
>
> Yes, I tried both ends of of the tuning dial - I often start on the low end, and slowly move the dial (to see if I pick up any noise at *any* frequency) up toward the high end - then slowly move it back down to the low end. I often repeat the process. I did this several times - on maybe 3 or 4 different laptops - and my radio just never "pinged", so to speak - I got no sharp noises.
>
> There seems to be too much of a pattern at this point for it to be a mistake or a lucky coincidence. Two visits to the Apple Store - testing several laptops - moving my radio up and down the dial many times over both visits - and not once do I pick up any sharp responses from my radio? Yet I can walk into a Sears, a Staples, a Best Buy - or just stay here at home and test my laptop or the new LCD TV that my parents put in the den - and my radio picks up noise? (Thankfully, the LCD TV is o.k. as long as the backlight is kept at maximum level.)
>
> It might be that we are getting two different results from the Apple computers for whatever reason - but it's not because of any defectiveness of my radio or testing methods.
>
> ~Svetaswan
>
>
>
> --- In [hidden email], Bill Bruno <wbruno@> wrote:
> >
> > So you hold the radio right up to the laptop and nothing?
> > Did you try both the high and low ends of the tuning dial?
> > Occasionally I"ve not noticed right away that the radio was
> > switched to FM.
> >
> > On Thu, Dec 2, 2010 at 4:52 PM, svetaswan <svetaswan@> wrote:
> >
> > >
> > >
> > >
> > >
> > > Hi Eli - I don't think there's anything wrong with my AM radio test. Just a
> > > few weeks ago, I was in Sears (again) "testing" LCD TVs, and my radio picked
> > > up some noise on at least one of the two products I was testing. And just
> > > now, my radio picked up noise on this Dell.
> > >
> > > My radio is the recommended Radio Shack model (CAT NO. : 12-586).
> > >
> > > Which i7 does your brother have - I think you can get up to a 2.8 GHz i7 in
> > > a Macbook, IIRC (particularly with the 17" model).
> > >
> > > I wish Apple offered more flexibility as far as customizable options. Why
> > > do you have to buy a juiced-up beast just to get a 15" screen?
> > >
> > > ~Svetaswan
> > >
> > >
> > > --- In [hidden email] <eSens%40yahoogroups.com>,
> > > "jaime_schunkewitz" <jaime_schunkewitz@> wrote:
> > > >
> > > >
> > > >
> > > > There's something wrong with your AM radio test.
> > > > I detect plenty of noise from my brother's 17"
> > > > MacBook Pro with an i7 processor. That machine is
> > > > lethal.
> > > >
> > > > Eli
> > > >
> > > >
> > > > --- In [hidden email] <eSens%40yahoogroups.com>, "charles"
> > > <charles@> wrote:
> > > > >
> > > > > My Acer 26" monitor has very wide and high peaks at around 4.5 MHz.
> > > > >
> > > > > Greetings,
> > > > > Charles Claessens
> > > > > member Verband Baubiologie
> > > > > www.milieuziektes.nl
> > > > > www.milieuziektes.be
> > > > > www.hetbitje.nl
> > > > > checked by Norton
> > > > >
> > > > > ----- Original Message -----
> > > > > From: Bill Bruno
> > > > > To: [hidden email] <eSens%40yahoogroups.com>
> > > > > Sent: Tuesday, November 30, 2010 4:59 PM
> > > > > Subject: Re: [eSens] Macbook Pros/laptops - questions about speakers,
> > > etc.
> > > > >
> > > > >
> > > > > That's amazing about the AM radio test. Conceivably they have
> > > > > moved all the frequencies above 1.7 MHz. Should try an AirBand
> > > > > radio. Or the MFJ-856. (mfjenterprises.com). I've heard there is
> > > > > some engineer at Apple who is EHS. Maybe they've seen the light
> > > > > (but I doubt it; the unibody mac book I have used (~2 years old) is
> > > > > terrible.
> > > > >
> > > > > 2.4 GHz is the same as a microwave oven, and wi-fi. It might be
> > > > > wise to stay away from that frequency unless you have found
> > > > > (remarkably) that those don't bother you. Also a lot of cordless phones
> > > > > use that frequency.
> > > > >
> > > > > Speakers can be a factor. They have coils and usually some RF gets to
> > > them
> > > > > despite the filters. Subwoofers are usually the worst.
> > > > >
> > > > >
> > > > >
> > > > > On Tue, Nov 30, 2010 at 7:17 AM, svetaswan <svetaswan@> wrote:
> > > > >
> > > > > >
> > > > > >
> > > > > > Hi,
> > > > > >
> > > > > > Yesterday, I was in the Apple Store again, looking at Macbooks (I
> > > know -
> > > > > > don't ask). I was trying to compare the 13" Macbook Pro and the 15"
> > > Macbook
> > > > > > Pro on a few features - among them being how "symptomatic" each made
> > > me
> > > > > > feel. I'm not 100% sure of this, but it seemed that I could "feel"
> > > whatever
> > > > > > "spirits" were coming from the 15" more - which I guess is not
> > > surprising.
> > > > > > Besides being bigger, having a more powerful processor & graphics
> > > card and
> > > > > > all that - I also noticed that it seemed to have more powerful/bigger
> > > > > > speakers inside of the chassis. I could put my hand on the right side
> > > of the
> > > > > > body (to the right of the trackpad), and could feel the speakers
> > > vibrating
> > > > > > as a YouTube video played. I didn't feel any such vibrations on the
> > > 13".
> > > > > >
> > > > > > I haven't come across anything really definitive - but from what I've
> > > seen
> > > > > > via Google, the 15" Macbook Pro does indeed have bigger/"better"/more
> > > > > > powerful speakers - with some sort of subwoofer (although the
> > > subwoofer may
> > > > > > be small). My question is - would the speakers contribute to any emr
> > > or emf?
> > > > > > Could these speakers contribute to any discomfort an electrosensitive
> > > may
> > > > > > feel?
> > > > > >
> > > > > > I remember Eli referring to how bad the Macbook Pro's AC magnetic
> > > field is
> > > > > > - could its speakers contribute to this field?
> > > > > >
> > > > > > Also, would someone be able to feel the difference between a 15"
> > > Macbook
> > > > > > Pro with a 2.4 GHz processor (Core i5) and a 15" Macbook Pro with a
> > > 2.53 GHz
> > > > > > processor (also Core i5) - while doing ordinary things like
> > > websurfing,
> > > > > > watching YouTube? I couldn't compare these two Macbooks because only
> > > the
> > > > > > 2.53 GHz version was on display. Maybe the 2.4 GHz is a little
> > > better, I
> > > > > > don't know.
> > > > > >
> > > > > > I really prefer a laptop with a 15" screen size - but for Macbooks,
> > > you
> > > > > > have to *pay* in a lot of ways to get this screen size.
> > > > > >
> > > > > > I also repeated the AM radio test - and again, the Macbooks tested
> > > > > > remarkably well. The radio picked up nothing - not even when I dimmed
> > > the
> > > > > > screens. And this was a different Apple Store than the one where I
> > > did the
> > > > > > previous AM tests at.
> > > > > >
> > > > > > ~Svetaswan
> > > > > >
> > > > > >
> > > > > >
> > > > >
> > > > >
> > > > > [Non-text portions of this message have been removed]
> > > > >
> > > > >
> > > > >
> > > > > ------------------------------------
> > > > >
> > > > > Yahoo! Groups Links
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > [Non-text portions of this message have been removed]
> > > > >
> > > >
> > >
> > >
> > >
> >
> >
> > [Non-text portions of this message have been removed]
> >
>

jaime_schunkewitz

Re: Macbook Pros/laptops - questions about speakers, etc.

In reply to this post by Svetaswan-2

I see. Your looking for sharp noises,
whereas I'm considering the very strong
static that the laptop produces. My Radio
Shack 12-586 starts to pick up static over
2 ft from the center of the keyboard,
whereas the Grundig mini 300 starts at
1 1/2 ft. That's with the laptop running
of the battery.

So the radio shack radio is a bit more
sensitive, however the tone of the Grundig
is much better and you can get a much
better sense of the severity of the
noise. It produces a much more menacing growl.

I used this laptop for a few minutes
yesterday and the ringing in my ears kept
me up most of the night. And I felt chest
pains the instant it was turned on for this
test. It also pegs my Trifield (100+ mg)
above the keyboard. The same goes for 99% of
the other available laptops equipped with
the new Intel i3, i5, and i7 processors.

This is not a good computer for the
hypersensitive, solid aluminum body and all.

Eli

--- In [hidden email], "svetaswan" <svetaswan@...> wrote:

Svetaswan-2

Re: Macbook Pros/laptops - questions about speakers, etc.

{Oops - I forgot to log in using the correct username - repost}

Oh, wait - *static* is considered fair-game when it comes to evaluating RF output? It has been my understanding that you listen for the sharp buzzes that sometimes (or often, depending on the object) comes in over the static - not the static itself. I don't even pay attention to the static when I'm doing these tests - I just listen for distinct sounds (buzzes, "squeals").

Since I don't pay attention to static, I don't have a good sense for when a nearby object is increasing the intensity of the static. But an object can be considered an "EMF nightmare" based on the *static* it produces in a radio?

From a symptoms standpoint - maybe I'm engaging in some "wishful thinking" when it comes to these Macbooks. I've found myself doing some rationalizing, having thoughts like - "Well, these Macboooks have given me symptoms before - but this time the symptoms aren't as bad..." Since my computer expertise is in the gutter, and I don't trust myself to buy a computer that's not backed by a solid warranty/tech-support plan - I feel locked into either a Mac or a Dell. Maybe I'm repeating myself - but I feel like there are so many other considerations than just e.s.-related things.

Theoretically, though - it seems that Macs are supposed to be relatively benign - at least when compared to computers with similar specs. And the Core is - at least the Core i3s and the Core i5s - use a 32nm manufacturing process, don't they? Isn't that supposed to cut down on the emfs? By comparsion, the processor in this old Dell laptop is 90nm (1.6 GHz Pentium M).

Do you know of any current laptops that might be better?

~Svetaswan

--- In [hidden email], "jaime_schunkewitz" <jaime_schunkewitz@...> wrote:

>
>
>
> I see. Your looking for sharp noises,
> whereas I'm considering the very strong
> static that the laptop produces. My Radio
> Shack 12-586 starts to pick up static over
> 2 ft from the center of the keyboard,
> whereas the Grundig mini 300 starts at
> 1 1/2 ft. That's with the laptop running
> of the battery.
>
> So the radio shack radio is a bit more
> sensitive, however the tone of the Grundig
> is much better and you can get a much
> better sense of the severity of the
> noise. It produces a much more menacing growl.
>
> I used this laptop for a few minutes
> yesterday and the ringing in my ears kept
> me up most of the night. And I felt chest
> pains the instant it was turned on for this
> test. It also pegs my Trifield (100+ mg)
> above the keyboard. The same goes for 99% of
> the other available laptops equipped with
> the new Intel i3, i5, and i7 processors.
>
> This is not a good computer for the
> hypersensitive, solid aluminum body and all.
>
> Eli
>
> --- In [hidden email], "svetaswan" <svetaswan@> wrote:
> >
> >
> >
> > Yes, I held the radio right up to the laptop - I may not have physically touched it with the radio (for the most part), but I put the radio right up to it.
> >
> > And it crossed my mind that there was a chance that my radio was on FM - but I checked it yesterday (I had not touched the radio since my little field trip), and it was indeed on AM.
> >
> > Yes, I tried both ends of of the tuning dial - I often start on the low end, and slowly move the dial (to see if I pick up any noise at *any* frequency) up toward the high end - then slowly move it back down to the low end. I often repeat the process. I did this several times - on maybe 3 or 4 different laptops - and my radio just never "pinged", so to speak - I got no sharp noises.
> >
> > There seems to be too much of a pattern at this point for it to be a mistake or a lucky coincidence. Two visits to the Apple Store - testing several laptops - moving my radio up and down the dial many times over both visits - and not once do I pick up any sharp responses from my radio? Yet I can walk into a Sears, a Staples, a Best Buy - or just stay here at home and test my laptop or the new LCD TV that my parents put in the den - and my radio picks up noise? (Thankfully, the LCD TV is o.k. as long as the backlight is kept at maximum level.)
> >
> > It might be that we are getting two different results from the Apple computers for whatever reason - but it's not because of any defectiveness of my radio or testing methods.
> >
> > ~Svetaswan
> >
> >
> >
> > --- In [hidden email], Bill Bruno <wbruno@> wrote:
> > >
> > > So you hold the radio right up to the laptop and nothing?
> > > Did you try both the high and low ends of the tuning dial?
> > > Occasionally I"ve not noticed right away that the radio was
> > > switched to FM.
> > >
> > > On Thu, Dec 2, 2010 at 4:52 PM, svetaswan <svetaswan@> wrote:
> > >
> > > >
> > > >
> > > >
> > > >
> > > > Hi Eli - I don't think there's anything wrong with my AM radio test. Just a
> > > > few weeks ago, I was in Sears (again) "testing" LCD TVs, and my radio picked
> > > > up some noise on at least one of the two products I was testing. And just
> > > > now, my radio picked up noise on this Dell.
> > > >
> > > > My radio is the recommended Radio Shack model (CAT NO. : 12-586).
> > > >
> > > > Which i7 does your brother have - I think you can get up to a 2.8 GHz i7 in
> > > > a Macbook, IIRC (particularly with the 17" model).
> > > >
> > > > I wish Apple offered more flexibility as far as customizable options. Why
> > > > do you have to buy a juiced-up beast just to get a 15" screen?
> > > >
> > > > ~Svetaswan
> > > >
> > > >
> > > > --- In [hidden email] <eSens%40yahoogroups.com>,
> > > > "jaime_schunkewitz" <jaime_schunkewitz@> wrote:
> > > > >
> > > > >
> > > > >
> > > > > There's something wrong with your AM radio test.
> > > > > I detect plenty of noise from my brother's 17"
> > > > > MacBook Pro with an i7 processor. That machine is
> > > > > lethal.
> > > > >
> > > > > Eli
> > > > >
> > > > >
> > > > > --- In [hidden email] <eSens%40yahoogroups.com>, "charles"
> > > > <charles@> wrote:
> > > > > >
> > > > > > My Acer 26" monitor has very wide and high peaks at around 4.5 MHz.
> > > > > >
> > > > > > Greetings,
> > > > > > Charles Claessens
> > > > > > member Verband Baubiologie
> > > > > > www.milieuziektes.nl
> > > > > > www.milieuziektes.be
> > > > > > www.hetbitje.nl
> > > > > > checked by Norton
> > > > > >
> > > > > > ----- Original Message -----
> > > > > > From: Bill Bruno
> > > > > > To: [hidden email] <eSens%40yahoogroups.com>
> > > > > > Sent: Tuesday, November 30, 2010 4:59 PM
> > > > > > Subject: Re: [eSens] Macbook Pros/laptops - questions about speakers,
> > > > etc.
> > > > > >
> > > > > >
> > > > > > That's amazing about the AM radio test. Conceivably they have
> > > > > > moved all the frequencies above 1.7 MHz. Should try an AirBand
> > > > > > radio. Or the MFJ-856. (mfjenterprises.com). I've heard there is
> > > > > > some engineer at Apple who is EHS. Maybe they've seen the light
> > > > > > (but I doubt it; the unibody mac book I have used (~2 years old) is
> > > > > > terrible.
> > > > > >
> > > > > > 2.4 GHz is the same as a microwave oven, and wi-fi. It might be
> > > > > > wise to stay away from that frequency unless you have found
> > > > > > (remarkably) that those don't bother you. Also a lot of cordless phones
> > > > > > use that frequency.
> > > > > >
> > > > > > Speakers can be a factor. They have coils and usually some RF gets to
> > > > them
> > > > > > despite the filters. Subwoofers are usually the worst.
> > > > > >
> > > > > >
> > > > > >
> > > > > > On Tue, Nov 30, 2010 at 7:17 AM, svetaswan <svetaswan@> wrote:
> > > > > >
> > > > > > >
> > > > > > >
> > > > > > > Hi,
> > > > > > >
> > > > > > > Yesterday, I was in the Apple Store again, looking at Macbooks (I
> > > > know -
> > > > > > > don't ask). I was trying to compare the 13" Macbook Pro and the 15"
> > > > Macbook
> > > > > > > Pro on a few features - among them being how "symptomatic" each made
> > > > me
> > > > > > > feel. I'm not 100% sure of this, but it seemed that I could "feel"
> > > > whatever
> > > > > > > "spirits" were coming from the 15" more - which I guess is not
> > > > surprising.
> > > > > > > Besides being bigger, having a more powerful processor & graphics
> > > > card and
> > > > > > > all that - I also noticed that it seemed to have more powerful/bigger
> > > > > > > speakers inside of the chassis. I could put my hand on the right side
> > > > of the
> > > > > > > body (to the right of the trackpad), and could feel the speakers
> > > > vibrating
> > > > > > > as a YouTube video played. I didn't feel any such vibrations on the
> > > > 13".
> > > > > > >
> > > > > > > I haven't come across anything really definitive - but from what I've
> > > > seen
> > > > > > > via Google, the 15" Macbook Pro does indeed have bigger/"better"/more
> > > > > > > powerful speakers - with some sort of subwoofer (although the
> > > > subwoofer may
> > > > > > > be small). My question is - would the speakers contribute to any emr
> > > > or emf?
> > > > > > > Could these speakers contribute to any discomfort an electrosensitive
> > > > may
> > > > > > > feel?
> > > > > > >
> > > > > > > I remember Eli referring to how bad the Macbook Pro's AC magnetic
> > > > field is
> > > > > > > - could its speakers contribute to this field?
> > > > > > >
> > > > > > > Also, would someone be able to feel the difference between a 15"
> > > > Macbook
> > > > > > > Pro with a 2.4 GHz processor (Core i5) and a 15" Macbook Pro with a
> > > > 2.53 GHz
> > > > > > > processor (also Core i5) - while doing ordinary things like
> > > > websurfing,
> > > > > > > watching YouTube? I couldn't compare these two Macbooks because only
> > > > the
> > > > > > > 2.53 GHz version was on display. Maybe the 2.4 GHz is a little
> > > > better, I
> > > > > > > don't know.
> > > > > > >
> > > > > > > I really prefer a laptop with a 15" screen size - but for Macbooks,
> > > > you
> > > > > > > have to *pay* in a lot of ways to get this screen size.
> > > > > > >
> > > > > > > I also repeated the AM radio test - and again, the Macbooks tested
> > > > > > > remarkably well. The radio picked up nothing - not even when I dimmed
> > > > the
> > > > > > > screens. And this was a different Apple Store than the one where I
> > > > did the
> > > > > > > previous AM tests at.
> > > > > > >
> > > > > > > ~Svetaswan
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > >
> > > > > >
> > > > > > [Non-text portions of this message have been removed]
> > > > > >
> > > > > >
> > > > > >
> > > > > > ------------------------------------
> > > > > >
> > > > > > Yahoo! Groups Links
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > [Non-text portions of this message have been removed]
> > > > > >
> > > > >
> > > >
> > > >
> > > >
> > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> >
>