Guest guest Posted July 27, 2006 Report Share Posted July 27, 2006 Hello Marc, it looks like it works like those Stetzer filters. Somebody should buy one and measure with a Stetzeriser meter. Greetings, Claessens member Verband Baubiologie www.milieuziektes.nl www.milieuziektes.be www.hetbitje.nl checked by Norton Antivirus Noise Harvester > Hi all, > > I was just shopping online for some stereo equipment, > and came across the " Noise Harvester " , which looks > like an interesting little plug-in device: > > http://tinyurl.com/rs85h > > I wonder if it has ES applications? > > Marc > > > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 27, 2006 Report Share Posted July 27, 2006 Hi All I just ordered the Noise Harvester. I have the Stetzer filters and the meter so I will let you all know how it works. Bill E > > Hello Marc, > > it looks like it works like those Stetzer filters. > > Somebody should buy one and measure with a Stetzeriser meter. > > Greetings, > Claessens > member Verband Baubiologie > www.milieuziektes.nl > www.milieuziektes.be > www.hetbitje.nl > checked by Norton Antivirus > > > > Noise Harvester > > > > Hi all, > > > > I was just shopping online for some stereo equipment, > > and came across the " Noise Harvester " , which looks > > like an interesting little plug-in device: > > > > http://tinyurl.com/rs85h > > > > I wonder if it has ES applications? > > > > Marc > > > > > > > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 27, 2006 Report Share Posted July 27, 2006 > I just ordered the Noise Harvester. I have the Stetzer filters and > the meter so I will let you all know how it works. I'm also going to order one. I seem to be the only person in the world who had a bad reaction to the Stetzer filters, so it'll be interesting to see what my reaction will be to this (and I also have a Stetzerizer meter to check readings). Note that the manufacturer's website even has photos of oscilloscope readings, which should make Shivani happy. :-) http://www.psaudio.com/products/noiseharvester_overview.asp Marc Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 27, 2006 Report Share Posted July 27, 2006 > it looks like it works like those Stetzer filters. As I understand it, the Stetzer filters reroutes the line noise from the hot wire to the neutral wire? I've tried 3 types of filters which work using this principal, and all 3 of them gave me a similar sort of irritation (sharp pain my head was the main symptom). The Noise Harvester doesn't claim to work like this. Instead, it takes the noise from the hot wire, temporarily stores it, and then uses that to drive an LED. So there is no transfer of the noise to the neutral line. I think this possibly would also make this safer for households which may have some of their outlets wired wired incorrectly? (perhaps not) The video on the manufacturers website shows how the device flashes more rapidly when you turn on a nearby dimmer switch, and also shows how the oscilloscope meter changes as you plug in one of the devices. I've ordered one for myself, and will report what I find. I no longer have any Stetzer filters, so I cannot do a direct comparison, but I'm sure others here can do that (I do still have the Stetzer meter, though) Marc Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 27, 2006 Report Share Posted July 27, 2006 Hello Marc, then you can see if it makes any difference in the mains. You may test it in a powerbox. Plug the Meter in, and then next to it the Noise Harvester. Greetings, Claessens member Verband Baubiologie www.milieuziektes.nl www.milieuziektes.be www.hetbitje.nl checked by Norton Antivirus Re: Noise Harvester >> it looks like it works like those Stetzer filters. > > As I understand it, the Stetzer filters reroutes > the line noise from the hot wire to the neutral > wire? I've tried 3 types of filters which work > using this principal, and all 3 of them gave me > a similar sort of irritation (sharp pain my > head was the main symptom). > > The Noise Harvester doesn't claim to work like > this. Instead, it takes the noise from the > hot wire, temporarily stores it, and then > uses that to drive an LED. So there is > no transfer of the noise to the neutral > line. > > I think this possibly would also make this > safer for households which may have some > of their outlets wired wired incorrectly? > (perhaps not) > > The video on the manufacturers website shows > how the device flashes more rapidly when you > turn on a nearby dimmer switch, and also shows > how the oscilloscope meter changes as you plug > in one of the devices. > > I've ordered one for myself, and will report > what I find. I no longer have any Stetzer > filters, so I cannot do a direct comparison, > but I'm sure others here can do that (I > do still have the Stetzer meter, though) > > Marc > > > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 27, 2006 Report Share Posted July 27, 2006 Where did you get this noise harvester and how much does it cost. I may be interested in one. Re: Noise Harvester > it looks like it works like those Stetzer filters. As I understand it, the Stetzer filters reroutes the line noise from the hot wire to the neutral wire? I've tried 3 types of filters which work using this principal, and all 3 of them gave me a similar sort of irritation (sharp pain my head was the main symptom). The Noise Harvester doesn't claim to work like this. Instead, it takes the noise from the hot wire, temporarily stores it, and then uses that to drive an LED. So there is no transfer of the noise to the neutral line. I think this possibly would also make this safer for households which may have some of their outlets wired wired incorrectly? (perhaps not) The video on the manufacturers website shows how the device flashes more rapidly when you turn on a nearby dimmer switch, and also shows how the oscilloscope meter changes as you plug in one of the devices. I've ordered one for myself, and will report what I find. I no longer have any Stetzer filters, so I cannot do a direct comparison, but I'm sure others here can do that (I do still have the Stetzer meter, though) Marc Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 27, 2006 Report Share Posted July 27, 2006 denom wrote: > Where did you get this noise harvester and how much does it cost. I got mine at: http://audioadvisor.com/ They cost $85 each. From what I gather, they recommend about 5 for a whole house (but they recommend this based on audio/video quality, not health). Marc Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 28, 2006 Report Share Posted July 28, 2006 Hello, as fas as I can read, the Noise Harvester works in the frequency band of 8 and 12 kHz. As far as I can measure, most disturbances are in the frequency band of 30 and 150 kHz. So mostly just above 30 kHz. Regarding regulations and norms, the frequency band between 1.25 and 150 kHz is a grey area. A German company with great experience with distorted tranformators and capacitors warns against the use of more Stetzer filters, because than unwanted resonances may occur, which can damage other electrical equipment. Greetings, Claessens member Verband Baubiologie www.milieuziektes.nl www.milieuziektes.be www.hetbitje.nl checked by Norton Antivirus Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 28, 2006 Report Share Posted July 28, 2006 > as fas as I can read, the Noise Harvester works in the frequency band of > 8 and 12 kHz. Yes, although elsewhere I've read that it works at all frequencies above 8 khz. But perhaps that's just because it takes out the harmonics of 8khz-12khz noise? Also, I've read that the Noise Harvester removes noise from both the hot and the neutral wire, which is why the plug is not polarized. It doesn't matter if it's plugged in upside down or not. It does nothing to the ground connection, so there is no ground connection. Oh well, all that really matters to me is whether it makes some sort of difference in my ES symptoms while watching TV or using the computer, and only some hands-on experience will tell me that! (and I guess one could combine the Stetzer filters with these -- the 10khz noise introduced by the Stetzers will be taken out by the Noise Harvesters!) :-) Marc Quote Link to comment Share on other sites More sharing options...
Guest guest Posted August 2, 2006 Report Share Posted August 2, 2006 > When I did new > readings today I see that my reading at the moment (6 P.M.) are between > 10 and 12 on all outlets checked. This is lower than it was before. > Which is surprising to me. Maybe there is not enough noise left on > my lines to make the noise harvester blink. I think you have so many Stetzer filters installed, that you may not have any noise left to harvest! :-) I find that my Noise Harvester flashes furiously (~10 times/second) when the Stetzer meter is above 200. At meter readings of about 150, it flashes about once per second. At meter readings of 50, it doesn't flash at all (or perhaps it does very rarely). One problem with the Noise Harvester when used at night in the bedroom is that all the flashing could keep you awake! So I've been putting something in front of it to block the light. I've seen reports of people using electrical tape to block the light, but in general I like to see the light to see how hard it is working. Marc Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You are posting as a guest. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.