Guest guest Posted February 10, 2004 Report Share Posted February 10, 2004 Hello Drasko, there are canopies who shield 30dB, 40 Db and 50 dB. For everyone there is a price tag attached. However, there can be side effects, where electrosensibles can react on. Some people feel very uncomfortable under it. However, it can be a solution, but if the HF radiation is too heavy, it is not sufficient. In my earlier posting *understanding I mentioned a german company, which has some solutions. I prefer shielding against the walls. Especially the bedroom, where we allow max 0,1 - 1 uW/m2 (microWatt per square meter) You could start by taping those *thermo blankets* against the bedroom curtains, with the silver side outside. Against the walls where the hf radiation is coming from, you may place this black paint or the Diamant tissue. In a living room, where we allow 100 uW/m2, there are transparent window films (RDF) to glue with water against the window pane. It is extremely hard to shield against magnetic fields, but with the materials mentioned you can shield against radio and television radiation also. Phone masts are all over, but don't forget the DECT phones of the neighbours. In order to work properly, and being able to plan things properly, you need a HF meter. As I mentioned in the former posting. Those HF Analysers are the lastest developments in metering technology. If you want to look at more details (how they look like) youcan download *het bitje* oktober/november 2003 from: http://members.rott.chello.nl/cclaessens/Pagina44.html It is completely in dutch or german, but the images speak for itsself. Now, these are my personal hints. You may also look at the valuable hints Marc mentioned before. Although I live in the netherlands, I look at websites all over the world. In my opinion, regarding meters and shielding materials and baubiologie (building biology), the germans are much farther than the americans. No pun intended. Greetings, Claessens member Verband Baubiologie http://members.rott.chello.nl/cclaessens/ http://www.hese-project.org checked by Norton Antivirus shielding > , one more question to you - you mentioned " shielding the room " . As I mentioned regaring canopies, they do the job, but shiled only the bed. I have done a lot of thinking on how to shield a room, but even if we neglect magnetic field from power lines, MW radiation is extremely hard to shiled. What do you generally suggest for propper shielding? If I wanted to live in urban areas, I would have needed attenuation of up to 1000 times, as phone masts are all over... > > Drasko Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 10, 2004 Report Share Posted February 10, 2004 At 07:35 PM 2/10/2004, you wrote: >, one more question to you - you mentioned " shielding the room " . As >I mentioned regaring canopies, they do the job, but shiled only the bed. I >have done a lot of thinking on how to shield a room, but even if we >neglect magnetic field from power lines, MW radiation is extremely hard to >shiled. What do you generally suggest for propper shielding? If I wanted >to live in urban areas, I would have needed attenuation of up to 1000 >times, as phone masts are all over... > >Drasko Hi Drasko, For walls, ceilings, doors etc., there is an excellent shielding paint called CuPro-Cote (http://www.lessemf.com/paint.html). It is a water based latex paint (easy to apply and easy to clean up) which has copper particles. Attenuation is very good: over 75 dB from 1 MHz to 1 GHz. I would guess that the shielding performance is still good at higher frequencies, but it has not been formally tested above 1 GHz. You can paint over it with normal latex paint to adjust color. For windows, mesh type fabrics are available to make drapes (or drape linings). The mesh fabrics allow light and air to pass. For example, See-Thru Fabric is available in 12 foot wide by any length you want. (http://www.lessemf.com/fabric.html) As always, RF shields should be grounded (Earthed). Controlling leakage points is critical for high attenuation RF shielding. Small leaks, such as around a door or light switch can reduce overall shielding in the room to 20 dB, even if the walls are covered with 80 dB material. Emil Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 10, 2004 Report Share Posted February 10, 2004 Hello Emil, I am sorry, but I disagree with you. All shielding for low frequencies must be grounded. That is right. But for high frequencies that is not neccessary. Sometimes it is even impossible. The exception is this paint, because it is electrical conductive, and therefore it MUST be grounded. Canopies, curtains, window pane films are never grounded. The received radiation is transformed into heat. If you use certain fabrics or woven stuff, which can also shield electrical alternating fields, than these materials MUST be grounded also. When I walk with my cap, or T-shirt or normal shirt, these are not grounded either, and I am not charged up. Greetings, Claessens member Verband Baubiologie http://members.rott.chello.nl/cclaessens/ http://www.hese-project.org checked by Norton Antivirus Re: shielding > At 07:35 PM 2/10/2004, you wrote: > >, one more question to you - you mentioned " shielding the room " . As > >I mentioned regaring canopies, they do the job, but shiled only the bed. I > >have done a lot of thinking on how to shield a room, but even if we > >neglect magnetic field from power lines, MW radiation is extremely hard to > >shiled. What do you generally suggest for propper shielding? If I wanted > >to live in urban areas, I would have needed attenuation of up to 1000 > >times, as phone masts are all over... > > > >Drasko > > > Hi Drasko, > > For walls, ceilings, doors etc., there is an excellent shielding paint > called CuPro-Cote (http://www.lessemf.com/paint.html). It is a water based > latex paint (easy to apply and easy to clean up) which has copper > particles. Attenuation is very good: over 75 dB from 1 MHz to 1 GHz. I > would guess that the shielding performance is still good at higher > frequencies, but it has not been formally tested above 1 GHz. You can paint > over it with normal latex paint to adjust color. > > For windows, mesh type fabrics are available to make drapes (or drape > linings). The mesh fabrics allow light and air to pass. For example, > See-Thru Fabric is available in 12 foot wide by any length you want. > (http://www.lessemf.com/fabric.html) > > As always, RF shields should be grounded (Earthed). Controlling leakage > points is critical for high attenuation RF shielding. Small leaks, such as > around a door or light switch can reduce overall shielding in the room to > 20 dB, even if the walls are covered with 80 dB material. > > Emil Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 10, 2004 Report Share Posted February 10, 2004 As far as I know RF shields do not need to be grounded (Earthed)! Grounding has no effect on the RF shielding. If someone insist that grounding the RF shielding is necessary, please tell me why. /Anders sson Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 11, 2004 Report Share Posted February 11, 2004 Hi , I agree with you partially. Grounding is always required for low frequency electric field shielding. Grounding for RF shielding is theoretically not necessary, as most RF shields are primarily reflectors. In the real world however, we have noticed by experience that grounding IMPROVES the shielding performance of paints, fabrics, and other conductive shielding materials. Furthermore, when shielded enclosures are imperfectly sealed, the radiation which gets inside the enclosure will dissipate much faster if the shield is grounded. Emil At 11:05 PM 2/10/2004, you wrote: >Hello Emil, > >I am sorry, but I disagree with you. > >All shielding for low frequencies must be grounded. That is right. > >But for high frequencies that is not neccessary. >Sometimes it is even impossible. >The exception is this paint, because it is electrical conductive, and >therefore it MUST be grounded. > >Canopies, curtains, window pane films are never grounded. >The received radiation is transformed into heat. > >If you use certain fabrics or woven stuff, which can also shield electrical >alternating fields, than these materials MUST be grounded also. > >When I walk with my cap, or T-shirt or normal shirt, these are not grounded >either, and I am not charged up. > >Greetings, > Claessens >member Verband Baubiologie >http://members.rott.chello.nl/cclaessens/ >http://www.hese-project.org >checked by Norton Antivirus > > > > Re: shielding > > > > At 07:35 PM 2/10/2004, you wrote: > > >, one more question to you - you mentioned " shielding the room " . >As > > >I mentioned regaring canopies, they do the job, but shiled only the bed. >I > > >have done a lot of thinking on how to shield a room, but even if we > > >neglect magnetic field from power lines, MW radiation is extremely hard >to > > >shiled. What do you generally suggest for propper shielding? If I wanted > > >to live in urban areas, I would have needed attenuation of up to 1000 > > >times, as phone masts are all over... > > > > > >Drasko > > > > > > Hi Drasko, > > > > For walls, ceilings, doors etc., there is an excellent shielding paint > > called CuPro-Cote (http://www.lessemf.com/paint.html). It is a water based > > latex paint (easy to apply and easy to clean up) which has copper > > particles. Attenuation is very good: over 75 dB from 1 MHz to 1 GHz. I > > would guess that the shielding performance is still good at higher > > frequencies, but it has not been formally tested above 1 GHz. You can >paint > > over it with normal latex paint to adjust color. > > > > For windows, mesh type fabrics are available to make drapes (or drape > > linings). The mesh fabrics allow light and air to pass. For example, > > See-Thru Fabric is available in 12 foot wide by any length you want. > > (http://www.lessemf.com/fabric.html) > > > > As always, RF shields should be grounded (Earthed). Controlling leakage > > points is critical for high attenuation RF shielding. Small leaks, such as > > around a door or light switch can reduce overall shielding in the room to > > 20 dB, even if the walls are covered with 80 dB material. > > > > Emil > > > > > > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 11, 2004 Report Share Posted February 11, 2004 What about a Farday Cage? http://www.emishieldinggaskets.com/faraday_cage%20_tent.htm Regards, Dillion > , one more question to you - you mentioned " shielding the room " . As I mentioned regaring canopies, Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 12, 2004 Report Share Posted February 12, 2004 Hi Dillon, I took a quick tour on the page you linked to. As far as i can find out it looks like they know what they talks about. But since they are professionals it probably costs. I wouldn't mind having 120dB attenuation from EMR in my bedroom. Regards /Anders sson INB wrote: > What about a Farday Cage? > > http://www.emishieldinggaskets.com/faraday_cage%20_tent.htm > > Regards, > Dillion > > > >>, one more question to you - you mentioned " shielding the > > room " . As I mentioned regaring canopies, > > > > > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 12, 2004 Report Share Posted February 12, 2004 Did you see the price tag? Re: Re: shielding > Hi Dillon, > > I took a quick tour on the page you linked to. As far as i can find out > it looks like they know what they talks about. But since they are > professionals it probably costs. I wouldn't mind having 120dB > attenuation from EMR in my bedroom. > > Regards > > /Anders sson > > INB wrote: > > What about a Farday Cage? > > > > http://www.emishieldinggaskets.com/faraday_cage%20_tent.htm > > > > Regards, > > Dillion > > > > > > > >>, one more question to you - you mentioned " shielding the > > > > room " . As I mentioned regaring canopies, > > > > > > > > > > > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 12, 2004 Report Share Posted February 12, 2004 Everything is 'spensive about this illnes, that and MCS. I have MCS, ES, CFIDS, FMS. Regards, Dillion > Hi Dillon, > > I took a quick tour on the page you linked to. As far as i can find out > it looks like they know what they talks about. But since they are > professionals it probably costs. I wouldn't mind having 120dB > attenuation from EMR in my bedroom. > > Regards > > /Anders sson Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 6, 2005 Report Share Posted July 6, 2005 > Yes, that is right, those are the only I tried. I will look into the others. > I am trying to convince my husband to move, not an easy task, so I will > keep on keeping on. What type of EMF do you live near? I'm not exactly sure why one side of my house is better than another. It could be a cell tower -- I know of a big one a few blocks away, and since we're at the top of hill there could be some that I'm not aware of. Also the power lines outside seem to be a problem, but they're on the same side of the house as the tower. But the house thing was never the big problem with me -- computers, laptops, and florescent lighting were the worst for me. A lot of my problems are resolved at this point, although with laptops, LCD monitors, and cellphones I practice avoidance. But I'm on the computer for lots of hours many days and don't have any problems at the end of the day. I remember the days when I couldn't stand 5 minutes on the computer! So some of the stuff I've tried has certainly helped me out a lot. Marc Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 7, 2005 Report Share Posted July 7, 2005 > What all have you tried? Heh, I have tried more things than I can remember. Probably at least 30 different EMF protection devices, plus various shielding, meters, mercury filling removal, detox, dietary changes, hundreds of different supplements, sauna/steam, massage, chiropractic, nutritionists... all over the course of 5 years. I've made great progress, but I think most people would have given up (or gone broke) during the process... Marc Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 7, 2005 Report Share Posted July 7, 2005 So what do you think has been the most helpful? >From: Marc <marc@...> >Reply- > >Subject: Re: shielding >Date: Thu, 07 Jul 2005 07:38:10 -0700 > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 7, 2005 Report Share Posted July 7, 2005 > So what do you think has been the most helpful? Well, avoidance is good where practical, but often is not practical if you want to live a normal life (e.g, use a computer, shop in stores, watch TV, etc.) And my goal is to not let the ES get in the way of what I want to do. EMF protection devices have been essential -- like I said before the stuff from Quantum Products and Springlife Polarizers I have used for years. However, I have a long list of devices which either did nothing or caused adverse reactions. There have been a few isolated supplements which have been helpful. The top ones have been Seasilver, Cellfood, Megahydrin, e-Poise, Primal Defense and Zypan. These supplements balance my pH, provide vitamins and minerals, and provide digestive enzymes and probiotics. Eating healthy has helped too -- more raw foods, more fruits and veggies, more digestable proteins, more healthy fats, more organic... and of course, cut out all the junk. I find that the " Eat Right for Your Blood Type " diet seems like a good starting point, but basically one can experiment with foods and see if they help or hurt sensitivity. For example, for me, bananas help but oranges hurt. Lots of people say to detox, but all I can say is don't overdo it. Basically, for me, just letting my body detox at its own pace seems to work best. Taking supplements which actively mobilize toxins into my bloodstream just make me feel bad (and usually makes my ES worse) So that's the high-level executive summary for me. :-) Right now I'm focusing on the immune system, as I've had life-long allergies to grass, weeds, dust, etc. (and currently this is a bigger unresolved issue than the ES). I don't know how many people who have ES also have allergies, but I think that for me they are related. Marc Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 19, 2006 Report Share Posted January 19, 2006 wrote: > I bought a meter recently, as I've already told. So, little story : > I use a piece of shielding curtain hanged on the window. It is very > funny. On one spot behing the shielding it can read 20 more uW than > on another spot 30 cm apart also behind the shielding curtain. > > Shivani replies: My Electrosmog Detector clearly shows similar variations in signal, both inside our house and out. One thing to be aware of is that a signal from a tower is not uniform in strength in all directions to begin with, so that houses at the same distance from it, but at different points on a circle drawn around the tower, will not receive the same signal strength. Then, trees, buildings, etc. block signal. Even a branch waving on a tree in your yard can vary how the signal will enter your window. And in winter when the leaves have fallen, you will be more exposed. If there are two or more signals involved, especially if they come from different directions, there will be hot spots ( " nodes, " as was pointed out by ) where they meet. In addition, all these signals will be reflected by various metals in your house, creating more signal beams. Also, if your TV antenna or wiring are picking up signals, they will then broadcast them into the living space of the house. Yeesh? Shivani Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 19, 2006 Report Share Posted January 19, 2006 How significant are TV antennae at picking up e-m radiation at non-TV frequencies? We tried taking our TV aerial down but didn't notice any real difference. Incidentally, when two beams overlap, the " nodes " referred to by and Shivani can be an " interference pattern " , with alternating high and low intensities a short distance apart, caused by transverse waves at different points in their cycle either reinforcing each other or cancelling each other out. Ian _____ From: [mailto: ] On Behalf Of SArjuna@... Sent: 19 January 2006 17:38 Subject: Re: shielding My Electrosmog Detector clearly shows similar variations in signal, both inside our house and out. One thing to be aware of is that a signal from a tower is not uniform in strength in all directions to begin with, so that houses at the same distance from it, but at different points on a circle drawn around the tower, will not receive the same signal strength. Then, trees, buildings, etc. block signal. Even a branch waving on a tree in your yard can vary how the signal will enter your window. And in winter when the leaves have fallen, you will be more exposed. If there are two or more signals involved, especially if they come from different directions, there will be hot spots ( " nodes, " as was pointed out by ) where they meet. In addition, all these signals will be reflected by various metals in your house, creating more signal beams. Also, if your TV antenna or wiring are picking up signals, they will then broadcast them into the living space of the house. Yeesh? Shivani Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 19, 2006 Report Share Posted January 19, 2006 > > How significant are TV antennae at picking up e-m radiation at non- TV > frequencies? We tried taking our TV aerial down but didn't notice any real > difference. > > > > Incidentally, when two beams overlap, the " nodes " referred to by and > Shivani can be an " interference pattern " , with alternating high and low > intensities a short distance apart, caused by transverse waves at different > points in their cycle either reinforcing each other or cancelling each other > out. > > > > Ian It just give me the idea of another thing to measure. Now in my case the phone tri mast, my window is parallel to one side of the triangle (I assume, although not sure). That means I would get two lobes more or less equally, although once again not sure. Yes, depending of the exact distance, and different signal from each mast, ... sinusoidal variation, ... Although I'm not sure that in the average if I keep the meter at the same point a while, 20 uW of difference is a lot. I get something like 15uW in one points and 35 uW 30cm apart. Anybody has the exact math theory ? I don't have anything between the window and the mast it's too high for the trees. jean. Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 19, 2006 Report Share Posted January 19, 2006 > > wrote: > > I bought a meter recently, as I've already told. So, little story : > > That is not uncommon. > One has to consider measuring techniques. > - How fas was your meter away from the curtain? If you are too close, you > may pick-up some electrical fields from the curtain. > - Was the angle at which you measured the same? > - Didn't you catch a reflection from somewhere else? > - Was the meter on the second spot perhaps in a *hotspot* ? > > Measuring is not holding a meter and pressing a button. > One has to take in consideration all kind of possible influences, like > reflections. > > Greetings, > Claessens It is 1.3 meter from the curtain. the angle is the same, cause I have the triangular antenna. Possible explanation also : the curtain is not regularly folded, there are not in fact nice folds, it is stretched (1.70m width out of a curtain width measure of 2.5m to give an idea). It's interesting once again what you say about the curtain. The mast frequency I pick is the GSM around 900 Mhz. I'll do more tests later. jean. Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 19, 2006 Report Share Posted January 19, 2006 > My Electrosmog Detector clearly shows similar variations in signal, both > inside our house and out. One thing to be aware of is that a signal from a > tower is not uniform in strength in all directions to begin with, so that > houses at the same distance from it, but at different points on a circle drawn > around the tower, will not receive the same signal strength. > Then, trees, buildings, etc. block signal. Even a branch waving on a > tree in your yard can vary how the signal will enter your window. And in > winter when the leaves have fallen, you will be more exposed. > If there are two or more signals involved, especially if they come from > different directions, there will be hot spots ( " nodes, " as was pointed out by > ) where they meet. > In addition, all these signals will be reflected by various metals in > your house, creating more signal beams. > Also, if your TV antenna or wiring are picking up signals, they will > then broadcast them into the living space of the house. > Yeesh? > > Shivani Okay for the possible interference between two emitting sources, it's possible. I'll do more measuring later. Yeah, there is lots of possible explanation, I'm gonna try to understand that a little bit more. There can be a drop of 30 uW by moving very little the meter. jean. Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 19, 2006 Report Share Posted January 19, 2006 Hello since your meter lacks a schielding inside for the antenna bus, it is quite possible, that you come with your meter inside a hotspot, and that therefore your meter gives another value. But, if I were you, don't worry. Itbis important, that you can measure, at the same spot, with and without your shielding curtain. It is also possible, that you measure a reflection coming from behind you, iand relecting in the curtain. Greetings, Claessens member Verband Baubiologie www.milieuziektes.nl www.milieuziektes.be www.hetbitje.nl checked by Norton Antivirus Re: shielding > >> My Electrosmog Detector clearly shows similar variations in > signal, both >> inside our house and out. One thing to be aware of is that a > signal from a >> tower is not uniform in strength in all directions to begin with, > so that >> houses at the same distance from it, but at different points on a > circle drawn >> around the tower, will not receive the same signal strength. >> Then, trees, buildings, etc. block signal. Even a branch > waving on a >> tree in your yard can vary how the signal will enter your window. > And in >> winter when the leaves have fallen, you will be more exposed. >> If there are two or more signals involved, especially if they > come from >> different directions, there will be hot spots ( " nodes, " as was > pointed out by >> ) where they meet. >> In addition, all these signals will be reflected by various > metals in >> your house, creating more signal beams. >> Also, if your TV antenna or wiring are picking up signals, > they will >> then broadcast them into the living space of the house. >> Yeesh? >> >> Shivani > > Okay for the possible interference between two emitting sources, it's > possible. I'll do more measuring later. Yeah, there is lots of > possible explanation, I'm gonna try to understand that a little bit > more. > > There can be a drop of 30 uW by moving very little the meter. > > jean. > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 19, 2006 Report Share Posted January 19, 2006 Re: shielding >> >> >> >> My Electrosmog Detector clearly shows similar variations in signal, >> both >> inside our house and out. One thing to be aware of is that a signal >> from >> a >> tower is not uniform in strength in all directions to begin with, so that >> houses at the same distance from it, but at different points on a circle >> drawn >> around the tower, will not receive the same signal strength. >> Then, trees, buildings, etc. block signal. Even a branch waving on >> a >> >> tree in your yard can vary how the signal will enter your window. And >> in >> winter when the leaves have fallen, you will be more exposed. >> If there are two or more signals involved, especially if they come >> from >> >> different directions, there will be hot spots ( " nodes, " as was pointed >> out >> by >> ) where they meet. >> In addition, all these signals will be reflected by various metals in >> your house, creating more signal beams. >> Also, if your TV antenna or wiring are picking up signals, they will >> then broadcast them into the living space of the house. >> Yeesh? >> >> Shivani >> >> >> >> Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 19, 2006 Report Share Posted January 19, 2006 Thanks . Interesting about the satellite dish, Sue has felt she was being " zapped " in our front garden and we had tentatively ascribed that to next door's satellite dish, about 5m away. (Houses are pretty closely packed where we are!) Ian _____ From: [mailto: ] On Behalf Of charles Sent: 19 January 2006 21:43 Subject: Fw: Re: shielding Re: shielding >> >> >> >> My Electrosmog Detector clearly shows similar variations in signal, >> both >> inside our house and out. One thing to be aware of is that a signal >> from >> a >> tower is not uniform in strength in all directions to begin with, so that >> houses at the same distance from it, but at different points on a circle >> drawn >> around the tower, will not receive the same signal strength. >> Then, trees, buildings, etc. block signal. Even a branch waving on >> a >> >> tree in your yard can vary how the signal will enter your window. And >> in >> winter when the leaves have fallen, you will be more exposed. >> If there are two or more signals involved, especially if they come >> from >> >> different directions, there will be hot spots ( " nodes, " as was pointed >> out >> by >> ) where they meet. >> In addition, all these signals will be reflected by various metals in >> your house, creating more signal beams. >> Also, if your TV antenna or wiring are picking up signals, they will >> then broadcast them into the living space of the house. >> Yeesh? >> >> Shivani >> >> >> >> Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 19, 2006 Report Share Posted January 19, 2006 The theory of interference patterns is that one could get down to a complete zero signal at the " antinode " and double the original signal at a " node " . However a meter may not be able to measure a location that accurately. And I am only guessing that it is a true interference pattern; local variations can be caused by other effects e.g. reflection, partial blockage, trees etc., as others correctly said previously. Ian _____ From: [mailto: ] On Behalf Of jean Sent: 19 January 2006 19:52 Subject: Re: shielding > Incidentally, when two beams overlap, the " nodes " referred to by and Shivani can be an " interference pattern " , with alternating high and low intensities a short distance apart, caused by transverse waves at different points in their cycle either reinforcing each other or cancelling each other out. > > Ian Yes, depending of the exact distance, and different signal from each mast, ... sinusoidal variation, ... Although I'm not sure that in the average if I keep the meter at the same point a while, 20 uW of difference is a lot. I get something like 15uW in one points and 35 uW 30cm apart. Anybody has the exact math theory ? I don't have anything between the window and the mast it's too high for the trees. jean. Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 19, 2006 Report Share Posted January 19, 2006 Hi, Before i would feel " thrown " by the sattelite dish or something (the cable to it or the back of the tv, or the box) just everytime i walked there.. At that time I used more tachyon disks there. Now i usually have one disk trying to cover the lot (very intuitive). It gives me no problem now, with or without tachyon// Maybe they cut a tree up the road, or well, not much bothers me anymore now. To Light alone I bow Love Ian Kemp <ianandsue.kemp@...> wrote: Thanks . Interesting about the satellite dish, Sue has felt she was being " zapped " in our front garden and we had tentatively ascribed that to next door's satellite dish, about 5m away. (Houses are pretty closely packed where we are!) Ian _____ From: [mailto: ] On Behalf Of charles Sent: 19 January 2006 21:43 Subject: Fw: Re: shielding Re: shielding >> >> >> >> My Electrosmog Detector clearly shows similar variations in signal, >> both >> inside our house and out. One thing to be aware of is that a signal >> from >> a >> tower is not uniform in strength in all directions to begin with, so that >> houses at the same distance from it, but at different points on a circle >> drawn >> around the tower, will not receive the same signal strength. >> Then, trees, buildings, etc. block signal. Even a branch waving on >> a >> >> tree in your yard can vary how the signal will enter your window. And >> in >> winter when the leaves have fallen, you will be more exposed. >> If there are two or more signals involved, especially if they come >> from >> >> different directions, there will be hot spots ( " nodes, " as was pointed >> out >> by >> ) where they meet. >> In addition, all these signals will be reflected by various metals in >> your house, creating more signal beams. >> Also, if your TV antenna or wiring are picking up signals, they will >> then broadcast them into the living space of the house. >> Yeesh? >> >> Shivani >> >> >> >> Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 20, 2006 Report Share Posted January 20, 2006 thanks for the answer. I'm still trying to figure out more about this question. Interferences, signal recombination, ugh. It's messy physics. It might be interference between two masts, cause I'm really facing the masts without anything in between. And there are big variations just moving the meter 30 cm, and pointing in the same direction. jean. > > > Incidentally, when two beams overlap, the " nodes " referred to by > and Shivani can be an " interference pattern " , with alternating high > and > low intensities a short distance apart, caused by transverse waves at > different points in their cycle either reinforcing each other or cancelling > each other out. > > > > Ian > > > Yes, depending of the exact distance, and different signal from each > mast, ... sinusoidal variation, ... Although I'm not sure that in > the average if I keep the meter at the same point a while, 20 uW of > difference is a lot. I get something like 15uW in one points and 35 > uW 30cm apart. Anybody has the exact math theory ? I don't have > anything between the window and the mast it's too high for the trees. > > jean. > > > > > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 20, 2006 Report Share Posted January 20, 2006 Hello it is not the interference with two masts. It is just so that you enter a hotspot. The reflections may come from many directions, not related to the two mastst. Greetings, Claessens member Verband Baubiologie www.milieuziektes.nl www.milieuziektes.be www.hetbitje.nl checked by Norton Antivirus Re: shielding > thanks for the answer. I'm still trying to figure out more about > this question. Interferences, signal recombination, ugh. It's messy > physics. It might be interference between two masts, cause I'm > really facing the masts without anything in between. And there are > big variations just moving the meter 30 cm, and pointing in the same > direction. > > jean. > > >> >> > Incidentally, when two beams overlap, the " nodes " referred to by >> and Shivani can be an " interference pattern " , with > alternating high >> and >> low intensities a short distance apart, caused by transverse waves > at >> different points in their cycle either reinforcing each other or > cancelling >> each other out. >> > >> > Ian >> >> >> Yes, depending of the exact distance, and different signal from > each >> mast, ... sinusoidal variation, ... Although I'm not sure that in >> the average if I keep the meter at the same point a while, 20 uW of >> difference is a lot. I get something like 15uW in one points and > 35 >> uW 30cm apart. Anybody has the exact math theory ? I don't have >> anything between the window and the mast it's too high for the > trees. >> >> jean. >> >> >> >> >> >> > > > > > > > > > Quote Link to comment Share on other sites More sharing options...
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