measuring EMF
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From: Jasen Betts on 1 Jun 2010 04:52 On 2010-06-01, lerameur <lerameur(a)yahoo.com> wrote: > On May 31, 10:05 am, "Tom Biasi" <tombi...(a)optonline.net> wrote: >> "lerameur" <leram...(a)yahoo.com> wrote in message >> >> news:10d985bd-8d93-4508-a167-0e538dd6fc17(a)q33g2000vbt.googlegroups.com...> Hello, >> >> > I would like to know if anyone know of a good performing EMF meter. >> > mainly from 0 to 1Ghz under 200$. The only one I saw was a trifield >> > recorder, that ''they '' use also for ghost hunting. I am not into >> > ghost hunting, but will this measure , My home power outlet EMF, radio >> > wave coming in my house ? because this is what I need it for. >> > thanks >> >> > K >> >> There are many radio fields coming into your house. What are you going to do >> once you measure them? >> >> Tom > > Hi Tom, > > I am actually beginning to study antennas and there EMF field. I am > trying to see if by shaping the antenna, or using different conducting > material will increase or decrease the EMF I am producing, and this at > different frequencies. SO basically i need a tool that can show me > the performance of my antenna. For that you probably want a signal strength meter, see if you can find a copy of the ARRL antenna book in a library, there should be plans for a few signal strength meters in there. (also many antenna plans) --- news://freenews.netfront.net/ - complaints: news(a)netfront.net ---
From: Tom Biasi on 1 Jun 2010 06:18 "lerameur" <lerameur(a)yahoo.com> wrote in message news:11d1301c-dc9b-4bb9-910f-3914f5279d47(a)w3g2000vbd.googlegroups.com... On May 31, 10:05 am, "Tom Biasi" <tombi...(a)optonline.net> wrote: > "lerameur" <leram...(a)yahoo.com> wrote in message > > news:10d985bd-8d93-4508-a167-0e538dd6fc17(a)q33g2000vbt.googlegroups.com...> > Hello, > > > I would like to know if anyone know of a good performing EMF meter. > > mainly from 0 to 1Ghz under 200$. The only one I saw was a trifield > > recorder, that ''they '' use also for ghost hunting. I am not into > > ghost hunting, but will this measure , My home power outlet EMF, radio > > wave coming in my house ? because this is what I need it for. > > thanks > > > K > > There are many radio fields coming into your house. What are you going to > do > once you measure them? > > Tom Hi Tom, I am actually beginning to study antennas and there EMF field. I am trying to see if by shaping the antenna, or using different conducting material will increase or decrease the EMF I am producing, and this at different frequencies. SO basically i need a tool that can show me the performance of my antenna. regards, K You need a field strength meter and some polar plot paper. ( Or computer equivalent) Tom
From: lerameur on 1 Jun 2010 09:16 On Jun 1, 6:18 am, "Tom Biasi" <tombi...(a)optonline.net> wrote: > "lerameur" <leram...(a)yahoo.com> wrote in message > > news:11d1301c-dc9b-4bb9-910f-3914f5279d47(a)w3g2000vbd.googlegroups.com... > On May 31, 10:05 am, "Tom Biasi" <tombi...(a)optonline.net> wrote: > > > > > "lerameur" <leram...(a)yahoo.com> wrote in message > > >news:10d985bd-8d93-4508-a167-0e538dd6fc17(a)q33g2000vbt.googlegroups.com....> > > Hello, > > > > I would like to know if anyone know of a good performing EMF meter. > > > mainly from 0 to 1Ghz under 200$. The only one I saw was a trifield > > > recorder, that ''they '' use also for ghost hunting. I am not into > > > ghost hunting, but will this measure , My home power outlet EMF, radio > > > wave coming in my house ? because this is what I need it for. > > > thanks > > > > K > > > There are many radio fields coming into your house. What are you going to > > do > > once you measure them? > > > Tom > > Hi Tom, > > I am actually beginning to study antennas and there EMF field. I am > trying to see if by shaping the antenna, or using different conducting > material will increase or decrease the EMF I am producing, and this at > different frequencies. SO basically i need a tool that can show me > the performance of my antenna. > > regards, > > K > > You need a field strength meter and some polar plot paper. ( Or computer > equivalent) > > Tom Anybody know of a good field strength meter ? model company? I am looking at this one, but it do not look like I can change frequency. Therefore if I am experimenting at 5V & 5Khz and I decide to jump to 6V, I want to know field strength difference at a certain distance. Is this possible with this meter ? K
From: Baron on 1 Jun 2010 13:05 lerameur Inscribed thus: > On Jun 1, 6:18 am, "Tom Biasi" <tombi...(a)optonline.net> wrote: >> "lerameur" <leram...(a)yahoo.com> wrote in message >> >> news:11d1301c-dc9b-4bb9-910f-3914f5279d47(a)w3g2000vbd.googlegroups.com... >> On May 31, 10:05 am, "Tom Biasi" <tombi...(a)optonline.net> wrote: >> >> >> >> > "lerameur" <leram...(a)yahoo.com> wrote in message >> >> >news:10d985bd-8d93-4508-a167-0e538dd6fc17(a)q33g2000vbt.googlegroups.com...> >> > Hello, >> >> > > I would like to know if anyone know of a good performing EMF >> > > meter. mainly from 0 to 1Ghz under 200$. The only one I saw was a >> > > trifield recorder, that ''they '' use also for ghost hunting. I >> > > am not into ghost hunting, but will this measure , My home power >> > > outlet EMF, radio wave coming in my house ? because this is what >> > > I need it for. thanks >> >> > > K >> >> > There are many radio fields coming into your house. What are you >> > going to do >> > once you measure them? >> >> > Tom >> >> Hi Tom, >> >> I am actually beginning to study antennas and there EMF field. I am >> trying to see if by shaping the antenna, or using different >> conducting material will increase or decrease the EMF I am producing, >> and this at different frequencies. SO basically i need a tool that >> can show me the performance of my antenna. >> >> regards, >> >> K >> >> You need a field strength meter and some polar plot paper. ( Or >> computer equivalent) >> >> Tom > > Anybody know of a good field strength meter ? model company? > I am looking at this one, but it do not look like I can change > frequency. > Therefore if I am experimenting at 5V & 5Khz and I decide to jump to > 6V, I want to know field strength difference at a certain distance. Is > this possible with this meter ? > > > K There are plenty of good circuits around, just Google for it, then get one made. The very simplest is just a diode and voltmeter. -- Best Regards: Baron.
From: Tom Biasi on 1 Jun 2010 16:07
"Baron" <baron.nospam(a)linuxmaniac.nospam.net> wrote in message news:hu3ein$q30$1(a)news.eternal-september.org... > lerameur Inscribed thus: > >> On Jun 1, 6:18 am, "Tom Biasi" <tombi...(a)optonline.net> wrote: >>> "lerameur" <leram...(a)yahoo.com> wrote in message >>> >>> > news:11d1301c-dc9b-4bb9-910f-3914f5279d47(a)w3g2000vbd.googlegroups.com... >>> On May 31, 10:05 am, "Tom Biasi" <tombi...(a)optonline.net> wrote: >>> >>> >>> >>> > "lerameur" <leram...(a)yahoo.com> wrote in message >>> >>> >>news:10d985bd-8d93-4508-a167-0e538dd6fc17(a)q33g2000vbt.googlegroups.com...> >>> > Hello, >>> >>> > > I would like to know if anyone know of a good performing EMF >>> > > meter. mainly from 0 to 1Ghz under 200$. The only one I saw was a >>> > > trifield recorder, that ''they '' use also for ghost hunting. I >>> > > am not into ghost hunting, but will this measure , My home power >>> > > outlet EMF, radio wave coming in my house ? because this is what >>> > > I need it for. thanks >>> >>> > > K >>> >>> > There are many radio fields coming into your house. What are you >>> > going to do >>> > once you measure them? >>> >>> > Tom >>> >>> Hi Tom, >>> >>> I am actually beginning to study antennas and there EMF field. I am >>> trying to see if by shaping the antenna, or using different >>> conducting material will increase or decrease the EMF I am producing, >>> and this at different frequencies. SO basically i need a tool that >>> can show me the performance of my antenna. >>> >>> regards, >>> >>> K >>> >>> You need a field strength meter and some polar plot paper. ( Or >>> computer equivalent) >>> >>> Tom >> >> Anybody know of a good field strength meter ? model company? >> I am looking at this one, but it do not look like I can change >> frequency. >> Therefore if I am experimenting at 5V & 5Khz and I decide to jump to >> 6V, I want to know field strength difference at a certain distance. Is >> this possible with this meter ? >> >> >> K > > There are plenty of good circuits around, just Google for it, then get > one made. The very simplest is just a diode and voltmeter. > > -- > Best Regards: > Baron. I agree with this. No need to spend a lot of money on this project. Tom |