Has anyone tried to turn thier monitor slightly to the side to veiw it I am
sure that this leads to less effects perhaps the invertor throws waves out at mainly at 90degrees ? ps My laptop died, normally viewed 1.5m away using zoom software, so I am back on the desktop with 17inch dell lcd monitor hence the above, but the difference is clear as this old croc fries me good and proper ! If I take the AM radio near the mouse and keyboard the nasty sound that is picked up on the desktop tower is coming out of the keyboard/mouse so there we have it - shame that we cannot filter post power supplysay with a stetzer type filter fitted at usb ports ? paul uk [Non-text portions of this message have been removed] |
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> If I take the AM radio near the mouse and keyboard the nasty sound
> that is picked up on the desktop tower is coming out of the > keyboard/mouse so there we have it - shame that we cannot filter post > power supply say with a stetzer type filter fitted at usb ports ? You could try using ferrites on the USB cables... Marc |
In reply to this post by PUK
There is an aspect, not many are aware of.
Dirty power, or simple VLF frequencies can come from the mains electricity net, from the outside, or inside your house self made. Some electrical appliances can fire back VLF into the mains. But a number of electrical appliances, lik f.i. LCD TV's do not send back VLF into the mains, but radiate it into space. And there those filters are no help, because these filters only work into the mains. Greetings, Charles Claessens member Verband Baubiologie www.milieuziektes.nl www.milieuziektes.be www.hetbitje.nl checked by Norton ----- Original Message ----- From: <[hidden email]> To: <[hidden email]> Sent: Thursday, May 14, 2009 9:19 AM Subject: [eSens] VDU POSITION > Has anyone tried to turn thier monitor slightly to the side to veiw it I > am > sure that this leads to less effects perhaps the invertor throws waves out > at mainly at 90degrees ? > > ps My laptop died, normally viewed 1.5m away using zoom software, so I am > back on the desktop with 17inch dell lcd monitor hence the above, but the > difference is clear as this old croc fries me good and proper ! If I take > the > AM radio near the mouse and keyboard the nasty sound that is picked up on > the desktop tower is coming out of the keyboard/mouse so there we have > it - > shame that we cannot filter post power supplysay with a stetzer type > filter fitted at usb ports ? > > paul uk > > > [Non-text portions of this message have been removed] > > > > ------------------------------------ > > Yahoo! Groups Links > > > > > |
I agree that if there's dirty power, then any ELF generating appliance,
including a monitor, will couple it into the room. But this is a situation where a filter, on the same phase and close to the power panel, can help (assuming the impedance of the source is not too high, which would require multiple filters) Bill On Thu, May 14, 2009 at 8:55 AM, <[hidden email]> wrote: > > > There is an aspect, not many are aware of. > > Dirty power, or simple VLF frequencies can come from the mains electricity > net, from the outside, or inside your house self made. Some electrical > appliances can fire back VLF into the mains. > > But a number of electrical appliances, lik f.i. LCD TV's do not send back > VLF into the mains, but radiate it into space. > And there those filters are no help, because these filters only work into > the mains. > > Greetings, > Charles Claessens > member Verband Baubiologie > www.milieuziektes.nl > www.milieuziektes.be > www.hetbitje.nl > checked by Norton > > > ----- Original Message ----- > From: <[hidden email] <paulpjc%40aol.com>> > To: <[hidden email] <eSens%40yahoogroups.com>> > Sent: Thursday, May 14, 2009 9:19 AM > Subject: [eSens] VDU POSITION > > > Has anyone tried to turn thier monitor slightly to the side to veiw it I > > am > > sure that this leads to less effects perhaps the invertor throws waves > out > > at mainly at 90degrees ? > > > > ps My laptop died, normally viewed 1.5m away using zoom software, so I am > > back on the desktop with 17inch dell lcd monitor hence the above, but the > > difference is clear as this old croc fries me good and proper ! If I take > > > the > > AM radio near the mouse and keyboard the nasty sound that is picked up on > > the desktop tower is coming out of the keyboard/mouse so there we have > > it - > > shame that we cannot filter post power supplysay with a stetzer type > > filter fitted at usb ports ? > > > > paul uk > > > > > > [Non-text portions of this message have been removed] > > > > > > > > ------------------------------------ > > > > Yahoo! Groups Links > > > > > > > > > > > > > [Non-text portions of this message have been removed] |
Hello Bill,
I must contradict you here. You may place a hunderd filters in the mains, it does not prevent the emission of VLF frequencies into the room, into the space. I have tested that before. Greetings, Charles Claessens member Verband Baubiologie www.milieuziektes.nl www.milieuziektes.be www.hetbitje.nl checked by Norton ----- Original Message ----- From: "Bill Bruno" <[hidden email]> To: <[hidden email]> Sent: Thursday, May 14, 2009 6:22 PM Subject: Re: [eSens] VDU POSITION >I agree that if there's dirty power, then any ELF generating appliance, > including a monitor, will couple it into the room. But this is a > situation > where a filter, on the same phase and close to the power panel, > can help (assuming the impedance of the source is not too high, which > would require multiple filters) > Bill > > On Thu, May 14, 2009 at 8:55 AM, <[hidden email]> wrote: > >> >> >> There is an aspect, not many are aware of. >> >> Dirty power, or simple VLF frequencies can come from the mains >> electricity >> net, from the outside, or inside your house self made. Some electrical >> appliances can fire back VLF into the mains. >> >> But a number of electrical appliances, lik f.i. LCD TV's do not send back >> VLF into the mains, but radiate it into space. >> And there those filters are no help, because these filters only work into >> the mains. >> >> Greetings, >> Charles Claessens >> member Verband Baubiologie >> www.milieuziektes.nl >> www.milieuziektes.be >> www.hetbitje.nl >> checked by Norton >> >> >> ----- Original Message ----- >> From: <[hidden email] <paulpjc%40aol.com>> >> To: <[hidden email] <eSens%40yahoogroups.com>> >> Sent: Thursday, May 14, 2009 9:19 AM >> Subject: [eSens] VDU POSITION >> >> > Has anyone tried to turn thier monitor slightly to the side to veiw it >> > I >> > am >> > sure that this leads to less effects perhaps the invertor throws waves >> out >> > at mainly at 90degrees ? >> > >> > ps My laptop died, normally viewed 1.5m away using zoom software, so I >> > am >> > back on the desktop with 17inch dell lcd monitor hence the above, but >> > the >> > difference is clear as this old croc fries me good and proper ! If I >> > take >> >> > the >> > AM radio near the mouse and keyboard the nasty sound that is picked up >> > on >> > the desktop tower is coming out of the keyboard/mouse so there we have >> > it - >> > shame that we cannot filter post power supplysay with a stetzer type >> > filter fitted at usb ports ? >> > >> > paul uk >> > >> > >> > [Non-text portions of this message have been removed] >> > >> > >> > >> > ------------------------------------ >> > >> > Yahoo! Groups Links >> > >> > >> > >> > >> > >> >> >> > > > [Non-text portions of this message have been removed] > > > > ------------------------------------ > > Yahoo! Groups Links > > > > > |
Few filters will do anything at VLF frequencies.
On Thu, May 14, 2009 at 10:39 AM, <[hidden email]> wrote: > > > Hello Bill, > > I must contradict you here. > > You may place a hunderd filters in the mains, it does not prevent the > emission of VLF frequencies into the room, into the space. > > I have tested that before. > > > Greetings, > Charles Claessens > member Verband Baubiologie > www.milieuziektes.nl > www.milieuziektes.be > www.hetbitje.nl > checked by Norton > > ----- Original Message ----- > From: "Bill Bruno" <[hidden email] <wbruno%40gmail.com>> > To: <[hidden email] <eSens%40yahoogroups.com>> > Sent: Thursday, May 14, 2009 6:22 PM > Subject: Re: [eSens] VDU POSITION > > >I agree that if there's dirty power, then any ELF generating appliance, > > including a monitor, will couple it into the room. But this is a > > situation > > where a filter, on the same phase and close to the power panel, > > can help (assuming the impedance of the source is not too high, which > > would require multiple filters) > > Bill > > > > On Thu, May 14, 2009 at 8:55 AM, <[hidden email]<charles%40milieuziektes.be>> > wrote: > > > >> > >> > >> There is an aspect, not many are aware of. > >> > >> Dirty power, or simple VLF frequencies can come from the mains > >> electricity > >> net, from the outside, or inside your house self made. Some electrical > >> appliances can fire back VLF into the mains. > >> > >> But a number of electrical appliances, lik f.i. LCD TV's do not send > back > >> VLF into the mains, but radiate it into space. > >> And there those filters are no help, because these filters only work > into > >> the mains. > >> > >> Greetings, > >> Charles Claessens > >> member Verband Baubiologie > >> www.milieuziektes.nl > >> www.milieuziektes.be > >> www.hetbitje.nl > >> checked by Norton > >> > >> > >> ----- Original Message ----- > >> From: <[hidden email] <paulpjc%40aol.com> <paulpjc%40aol.com>> > >> To: <[hidden email] <eSens%40yahoogroups.com> <eSens% > 40yahoogroups.com>> > >> Sent: Thursday, May 14, 2009 9:19 AM > >> Subject: [eSens] VDU POSITION > >> > >> > Has anyone tried to turn thier monitor slightly to the side to veiw it > > >> > I > >> > am > >> > sure that this leads to less effects perhaps the invertor throws waves > >> out > >> > at mainly at 90degrees ? > >> > > >> > ps My laptop died, normally viewed 1.5m away using zoom software, so I > > >> > am > >> > back on the desktop with 17inch dell lcd monitor hence the above, but > >> > the > >> > difference is clear as this old croc fries me good and proper ! If I > >> > take > >> > >> > the > >> > AM radio near the mouse and keyboard the nasty sound that is picked up > > >> > on > >> > the desktop tower is coming out of the keyboard/mouse so there we have > >> > it - > >> > shame that we cannot filter post power supplysay with a stetzer type > >> > filter fitted at usb ports ? > >> > > >> > paul uk > >> > > >> > > >> > [Non-text portions of this message have been removed] > >> > > >> > > >> > > >> > ------------------------------------ > >> > > >> > Yahoo! Groups Links > >> > > >> > > >> > > >> > > >> > > >> > >> > >> > > > > > > [Non-text portions of this message have been removed] > > > > > > > > ------------------------------------ > > > > Yahoo! Groups Links > > > > > > > > > > > > > [Non-text portions of this message have been removed] |
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