meters

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meters

charles-2
Hello,

in a home, there are several dangers lurking at you.
You can not see them, you cannot hear them and you cannot taste them, but
they are there.

With a building biology search, many items are looked after.

But many people want to investigate for themselves and consider what meters
they need.
I want to give here my personal impression, for people in the USA.
Others may have another opinion, but this is for starters.

1. We have the high frequency from mobile phone masts and DECT telephones.
For shielding, it is neccessary to know how much is coming from where.
My advice is the Gigahertz HF Analyser 35C or the more sophisticated 58B.
In a few months the 59B is coming, but that one is more expensive, and for
professionals.
This meter starts at 800 MHz till 2.5 GHz. All frequencies below 800 MHz are
filtered out.
That means, that radio and television waves do not interfere with the
signals you want to measure.
This meter does not have a AGC, automatic gain control, other meters do
have.
So the signals you pick up, are not amplified, but real, and right with the
value on display.
In my opinion, the value/price for this meter is right.
Lessemf has it in its programm.
One uses this meter regularly, to check for changes.

2. Electrical alternating fields are not so a great concern to me.
The magnetic alternating fields are.
Gigahertz has a nice meter for it. ME3030B. You may measure electrical
alternating fields as well as the magnetic alternating fields by pressing a
button. (See Lessemf)
But, for measuring magnetic fields, ons must measure the X-, Y-, and Z-axis.
Those values must be quadrupled, added, and taking the quare root of it. One
needs a calculator for it.

I use a 3D Teslameter, who calculates that himself. Just point and read.
The 3-axis AC digital AC Gauss meter from Bell. See Lessemf.

3. Magnetic static fields.
That is a meter for DC magnetics, which occur in metal parts that have
become magnetic. Like pipings under the floor, metal support beams, metal
parts on beds, earth beams, etc.
I have a simple Magnetometer according to Cromm, which is no longer in
production.
Perhaps the DC Magnetometer from AlphaLab (Trifield) is a choice.
On the other hand, this is not something one measures everyday, but it can
be an enormous pest.

Greetings,
Charles Claessens
member Verband Baubiologie
http://members.rott.chello.nl/cclaessens/
http://www.hese-project.org
checked by Norton Antivirus

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RE: meters

Lachlan Mudge
My apologies to everyone, it appears that the manuals I sent for people to have
a look at get stripped from my messages. If anyone wants me to send them the
information I have on the 'Gigahertz Solutions' meters, please let me know.
Thanks,
LACHLAN MUDGE
Research Engineer
Sustainable Energy Centre
University of South Australia
Ph: +61 8 8302 3497
Fax: +61 8 8302 3380
Email: [hidden email]

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RE: meters

Marc Martin
Administrator
In reply to this post by charles-2
>My apologies to everyone, it appears that the manuals I sent for people to
>have
>a look at get stripped from my messages. If anyone wants me to send them the
>information I have on the 'Gigahertz Solutions' meters, please let me know.

The group is automatically set to strip out attachments, as I think not
everyone wants to receive files sent to them via email. However, if you
have a file of interest to the group, you can upload it to our "files"
area, and then announce here what it is.

Here's a link to the "files" area:

http://groups.yahoo.com/group/eSens/files


Marc

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Re: meters

Drasko Cvijovic
In reply to this post by charles-2
Regarding meters, I have a HF Profy meter which I think has the best sensitivity / price ratio. It also has an audio output for signal nature estimation. Look at www.electrosmog.de
I have not investigated Gigahertz analyzer proposed by Charles, I haven't found it at lessemf. But I found a site in German with a list of the similar meters. And you know what - Google translates German very succesfully! What a discovery for me! See the meters list translated at:
http://216.239.39.104/translate_c?hl=en&sl=de&u=http://mitglied.lycos.de/elektrosmog/hf-messgeraete.htm&prev=/search%3Fq%3DGigahertz%2BHF%2BAnalyser%26hl%3Den%26lr%3D%26ie%3DUTF-8%26oe%3DUTF-8%26sa%3DG

Drasko


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