Pagina112a

Meters and units

With the lowfrequency we need two separate meters; one for measuring the elektrical alternating field, and one for measuring the magnetical alternating field.

There are manufacturors, who have built these two meters in one single apparatus. By shifting a button, one may switch between the one and the other.

Because at highfrequency these two fields are connected to each other, only one field has to be measured, from which the other one can be calculated. Therefore commonly the elektrical field will be measured.

Units

The unit is V/m.
Building biologists use the unit uW/m2, microWatt per square meter, and that we call the flux density (Leistungsflussdichte).

The calculation from V/m to uW/m2 is only allowed when real highfrequency fields are involved.
Close to a GSM phonemast those two fields (the elektrical and the magnetical) are not joined together, and for the calculation of the flux density also the magnetical field must be measured.
(TNO had neglected that, zie *het bitje* October/Februari 2004).

There is a handy little program to recalculate the different units.
Download Mobidig.exe here

Or look at www.funkenflug1998.de/inhalt/haupts_mess.html

We speak of elektrical alternating fields, of magnetical alternating fields and of elektromagnetic waves.

9 . Aaronia Spectran Spectrum Analyzer NF

- electric AC, magnetic AC, as well for static DC magnetic fields.
The magnetic fields in 3D.

I
One can determine the occurring frequencies.

(From 0 Hz up to 30 MHz with options)

Especially the possibility for mounting different probes, antennas and other stuff.

The issue of *het bitje* September 2008 tells it all.

Very interesting is the SMA entry connector, on which other antennas can be connected, like those offered by Aaronia as accessories.

Conversion table.

Attention, mikroWatt per square meter does not go to V/m but to mV/m

As example:

100 uW/m2 = 194 mV/m = 0,194 V/m

Beware, this conversion goes only for the HF Analysers of Gigahertz Solutions with their accompanying antennas.

My personal advices for measuring equipment.

It is important to reflect what one wants to measure, why, and which conclusions should be drawn from the results.

A meter that can measure everything does not exist.
Many meters can only measure within a certain area or range; if one wants more, than another type with extended features should be bought, which can measure in a larger frequency range, or can measure larger radiation quantities.

Furthermore one should distinguish between detectors and meters.

A detector only shows, and let it eventually HEAR, that highfrequent radiation is present.
Regarding the sound, one may recognize what kind of HF sources are detected, but one cannot determine how large the quantity or amount of the HF radiation is.

Electrosensibles may go very far with a detector.

However, when one wants to know exactly how much radiation is present, for instance in order to determining of a shielding is sufficient, or for checking a future home regarding mobile phone masts or neighbours with wireless apparatus, than a good meter is neccessary.
(For not being disturbed by radio- and TV signals, most HF meters start only at 800 MHz, so they cannot measure underlying sources like for instance TETRA!)

So most meters do have their limitations and cannot measure all.
Sometimes it may be cheaper to order a building-biological house survey, because then most incriminating factors are being investigated.
Because there are much more elektrosmog-factors, which can be health-damaging , and which cannot be traced by the following meters.

For that other meters are neccessary (which we possess).

General advice : Nr 1 or nr 4 and 7

1 . Esmog Spion
- Endotronic

A meter/detector which I always wear with me.
Actually, it is not a meter, but a detector. He lets HEAR in an excellent way what HF signals are *in the air*.
The diodes only show if the amount of signals is in- or decreasing.

I use him mostly without any antenna, because he is very sensitive.

Besides the highfrequency, he shows also the lowfrequency fields in hearing.
With the telecoping antenna also lowfrequent fields can be detected.
There is also a Profi Spion (where other antennas can be mounted.

See *het bitje* May 2006. and April 2003

2 . Microwave Warner
- Endotronic

A small handy detector with three HF radiation levels.
This is also not a meter, but a detector.
When the third level is reached, a peeping warning signal can be heard.

See *het bitje* August 2006.

3 . Electrosmog Detector
- Sensory Perspective

A detector, which only lets you hear which highfrequent signals are present *in the air*.

The sound quality is good, but in my opinion starts this detector too high with detecting and may give electrosensibles a false feeling of safety.

See *het bitje* Augustus 2005.

4 . HF Analyser HF35C
- Gigahertz Solutions

This is a real meter (from 800 - 2.500 MHz).
He lets hear also which radiation sources are found, but the sounds are less compared to those of the detectors.

On the display one can see immediately how much the total HF radiation amounts in uW/m2. For the layman, this is a fine starting model. It measures from 0.1 tot 2,000 uW/m2, and that is largely enough.
After all, if there is more radiation, one should run away!

With the supplied LogPer antenna, the sources can be easily localised.

See *het bitje* Oct/Feb 2004.

5 . HF Analysers other types
- Gigahertz Solutions

Those are meters with more possibilities, extensive frequency bands(27 MHz - 2500 MHz, 2.400 - 6.000 MHz), other antennas, more connecting possibilities, variable filters, signal amplifiers, etc.

Comment: Those are all broadband meters, which means that they *grab* all what comes in front of the antenna.
Except by menas of sound, one cannot know what kind of signal one has measured. That is only possible with a variable filter, with which one certain frequency can be suppressed, and one can determine which frequency is at hand.

See *het bitje* Oct/Feb 2004.

7 . NF Analysers for lowfrequent fields, f.i. ME3830B
- Gigahertz Solutions

This is a good starting model for measuring at home the electrical and magnetic alternating fields.

In this ME series, several types are available, which can measure more and extensively.
Even conform the TCO norms (between 5 Hz - 2 kHz, and 2 kHz - 400 kHz).

See *het bitje* October 2004.

Be aware that for electrical fields, the ground cable must be used, and for magnetic fields, the X-, Y- and Z- axis must be measured seperately and the resultant be calculated.

That is why I use for measuring magnetic alternating fileds a meter with a 3D measuring probe. That way, it is only *point and read!*
Like the image at right (Mark Bell).

It is time for Gigahertz Solutions to bring a 3D magnetic meter.
They mention a new ME type with a 3D probe, but only for 2008.
New developments seem to accelerate this proces!

Here two examples of other types with other antennes.

The lower one is the HF59B with theUBB27 antenna, which measures from 27 MHz till 2.5 GHz, but because there was no filter available for, so it is very difficult to determine what one has *caught* precisely.

The upper is the new HFW35C special, which can measure from 2.4 - 6 GHz. The sensitivity is raised by two amplifiers.

8 . Aaronia Spectran Spectrum Analyzer HF

..for highfrequent fields
- Version 3 and version 4

This is an analysis meter for advanced people.

With this the measuring is frequency-selective, and the complementary use of a laptop is advised.

See *het bitje* November 2007

Remark:

The Buergerwelle has placed a number of videos of their *test* of the Spectran HF .
For the layman it looks imposant, but in fact it is a witch-hunt against Aaronia.
The test is not objektive and ridicules with the basics of technique.
When the antenna only can measure starting at 680 MHz, one should not complain if there are ghost signals appear at 80 MHz. Even the most expensive spectrumanalysers show aliasses and ghostsignals, for which special algorithms arew applied in ordeer to filter them out.
It is possible to adjust the Spectran in such a way, that he shows problems and noise everywhere. Nowhere the Buergerwelle mentions how they have set up and adjusted the Spectran; but that can make a difference as chalk and cheese.
It is intimidation in posing, that the Spectran would produce elektrosmog. That is something, that every measuring device is doing, even the best spectrumanalyser. For that I have placed some recorded sounds of modulations placed with the MP3 sounds under the chapter*Info*. In fact every apparatus with a display *adiates*. OAlso the thermostat of your central heating.

In the RDW forum one has responded to the Buergerwelle test as foolish nonsence.

Soon the HF Spectran version 4 will be available. It is mor expensive, but can do a lot more.
I am testing a prototype, which is very fast and promising.

10. Analysis of highfrequent signals.

Many meters may show the total amount of radiation density of all signals, but we do not know which signals belong to which source.
It makes different if a GSM phone mast, DECT phone, wireless modem or an UMTS transmitter has been found as a radiation source. There are many disturbing radiation sources.

So, if we want to know more, the following may be applicable:

Firstly by listening to the modulations, which a number of meters may reproduce.
Under Info a number of recorded modulations can be listened to.
At www.priggen.com a CD with modulaties by Dr. Virnich is available.

Gigahertz Solutions has two variabele filters available for their meters. These suppress only one certain frequency: For example a shrilling DECT signal can be suppressed, in order to measure other signals better. On a scale the suppressed frequency can be read off.

ROM-elektronik has choosen to go another way and has developed a bandfiltert. This contains a number of frequencybands, mostly the downloads, in which one can measure. For example the GSM900 download band. All signals within this frequencyband is measured, and all signals outside this will be suppressed.
See this filter below.

In the HFA-3 meter, it is built in, see image right below.
It is a pleasure for measuring UMTS, because this signal is often drown out by GSM and DECT.

Elaborating on this Gigahertz Solutions has developed their own filter, and in three types.
In fact only two types; one forthe standard meters, beginning at 800 MHz and one for the *E* meters, which are supposed to measure from 27 MHz (concerning f.i. TETRA).
The FF3, the FF6 and the FF6E.
The purpose of the FF6 I fail to see.
One should choose between a FF3 or a FF6E, supposing the meter can handle those frequencies.

11. Remarks:

Although I seldomly express myself about prices, this time I think it wise to do so.
For all those, who already possess a Gigahertz, for instance a HF35C, it may be advisable to acquire an FF3 filter.

But if one does not yet possess such a meter, it may be advisable to buy a Spectran HF for that price, for instance the Spectran HF 4060 (which can measure even up to 6 GHz: Wimax and modems in the 5 GHz band, etc.). One gets much more value for money.

And only with a HFE35C or a HF59B, both with UBB27 antenna, a filter FF6E looks meaningful, but also here it seems qua investment and *Value for money* more advisable to buy Spectran HF V4, aside the existing Gigahertz meter.

Here, not only all seperate peaks inside the frequencyband concerned are shown, but the software can sum up them together. Also it is clearly visible which providers are present.
The image below shows the downlink, but also the uplink can be shown, that is all those who are calling with their cell phones.

Above is shown how it looks in the software.
Clearly, there are two transmitters of KPN and one of Vodafone present.
In the LCS software up to 10 peaks can be shown: On the display of the meter three is maximum.

The LCS software has some 20 frequencybands, which can be adjusted.
And new ones can be made easily.

At the right an image of the display of a Spectran HF at another spot.

12 Spectran news

New is now, that one can see directly on the Spectran HF meter which provider is transmitting.
Before, that was only possible with the free LCS software.

The image to the right shows a belgian provider Proximus.
The peak shown on the left is not from a provider, because that signal comes from Railinfrabeheer, the Railways, GSM-R.

It will take some time before the Spectran V5, Color will appear on the market.

But now a new type is announced, the Spectran HF XFR is coming, as well as a Spectran NF XFR.
That is a militairy design of a laptop, aee images below:

The XFR is resistant to chocks, falling, water, sand, you name it.
Also the screen can resist a lot. The XFR has all kinds of connections.

The Spectran XFR consists of the XFR laptop, with built-in a Spectran HF 60105 or NF5030 .
Only on the side, an antenna will be connected. Here the new OmniLOG is shown.

Qua antennae, there are HyperLOG, BicoLOG, OmniLOG and the special probes PBS and GEO.

Ballistic Armor™ Protection System to meet and exceed real world and military standards (MIL-STD-810F).

Spectran XFR with PrimoSeal™ technology has the highest Ingress protection rating (IP65) of any notebook in its class.

See You Tube film.

For the protection of the Spectrans, there are now rubber covers available see details above.

The OmniLOG90200 antenna is omnidirectional. He is radial isotropic, which means that the antenna does not need to point to a source, but that he *grabs* everything around.
For that, it needs only to point upwards..

GSM900, GSM1800, UMTS and 2.4 GHz WLan.

13. New HF detector in development

I have found another developer who is willing to develop a new relative cheap detector.
Beware, it is a detektor, not a measuring device.

It is especially meant for electrosensibles, who want to check their surroundings with a small device.

One type will go from100 MHz to 2.5 GHz with a sensitivity of - 80 dBm.

And a second one from 100 MHz to 10 GHz, with a sensitivity of - 60 dBm. That is less sensitive, but has a larger frequency range.

The expectation is that in about three months the first prototypes are available.

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