Re: VLF

Posted by xmanflash2001 on
URL: https://www.es-forum.com/VLF-tp1536681p1536752.html

Hi Charles,

------
I was astounded how much signals my completely turned-off televisions
set was still emitting.
-----

Is this off at the power switch, so no current, or do you mean in
stand-by mode?

Thanks
Pete


Charles wrote:

> Hello Anders,
>
> of course spectrum analysis equipment is good equipment, but the costs are
> enormous.
>
> For a private person too high.
> And you must take into account, that those values are not precise.
> Officially, they calculate with a tolerance of + and - 3 dB.
> The meter, the antenna and the cables must be calculated as well, and they
> must be checked and calibrated periodically, which costs also.
>
> There are alternatives, which give about the same information.
> I have found that.
>
> Perhaps after 1 November, another alternative is on the market.
> We will see.
>
> Your dream about DC-3GHz will remain a dream.
> A spectrum analyzer will not measure anything about DC.
> There, one needs other measuring equipment, like a Feldmuehle for
> electrical
> DC or a magnetometer or a scintillationscounter for magnetic DC.
>
> For AC, I now have a meter, measuring from 5 kHz to 30 kHz and from 30 kHz
> to 150 kHz.
> Some sounds I have placed on the website under info.
>
> I was astounded how much signals my completely turned-off televisions set
> was still emitting.
>
> Greetings,
> Charles Claessens
> member Verband Baubiologie
> www.milieuziektes.nl
> www.hetbitje.nl
> checked by Norton Antivirus
>
> ----- Original Message -----
> From: "Anders Eriksson" <[hidden email]>
> To: <[hidden email]>
> Sent: Monday, September 06, 2004 11:56
> Subject: Re: [eSens] VLF
>
>
> > Hi Charles,
> >
> > as I see it, it's the only instrument (spectrum analysis equipment)
> > worth using if you are supposed to do serious measurements.
> > If you use a spectrum analyzer and an antenna of good quality you can
> > tell exactly the amount of energy emanating from each source (cellular
> > phone tower, DECT, FM-radio and so on).
> > My dream is to get hold of professional instrumentation for the entire
> > spectrum from DC to lets say at least 50GHz. I'm sure I will fulfill a
> > part (DC-3GHz) of my dream during 2005!
> >
> > As for florescent light: has anyone on the list information of how much
> > UV-light (and other frequencies related to Hg)that is emitted?
> >
> > Greetings Anders
> >
> > ------------
> >
> > Charles wrote:
> > > So Lachlan,
> > >
> > > you are thinking about buying spectrum analysis equipment.
> > > Why?
> > > To what purpose?
> > >
> > > Greetings,
> > > Charles Claessens
> > > member Verband Baubiologie
> > > www.milieuziektes.nl
> > > www.hetbitje.nl
> > > checked by Norton Antivirus
> > >
>
>
>
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