EMF effects on cabling

[chrisgp]

I'm a student doing a research project on the effects of EMF on computer networking, and just had a few questions that I would appreciate some insight on if possible.

1.) EMF consists of the electric (volts/meter) and magnetic (mG) aspects, but is there one of these that would be the main contributor to interference/induced currents in cabling?

2.) Somewhat of a follow on to 1., but I'm looking for EMF meters that would be applicable to a project like this, and am not sure if there is a particular company/meter I should be looking at. Ideally, I'd like for it to be able to measure the intensities at different frequency ranges.

3.) Any suggestions on methods to generate the EMF? My initial thought was to get a coil of wire and send an AC signal through it, but then I realized that if possible I'd want to get up to about the 2.4 GHz range, and I couldn't think of any reasonable source that could be variable and still generate up to that frequency.

Thanks!
Christopher

 

[robbietan]

1.) EMF consists of the electric (volts/meter) and magnetic (mG) aspects, but is there one of these that would be the main contributor to interference/induced currents in cabling?

most of the designs I see consider the magnetic aspect (produced by AC current) of EMF. most of the voltages located inside buildings are low voltage (i.e. 230V and below)

2.) Somewhat of a follow on to 1., but I'm looking for EMF meters that would be applicable to a project like this, and am not sure if there is a particular company/meter I should be looking at. Ideally, I'd like for it to be able to measure the intensities at different frequency ranges.

There are a lot of meters out there, I dont know it if would be appropriate to mention names but I use a sypris (formerly fw bell) EMF meter as I am mostly concerned on EMF from AC transmission lines

3.) Any suggestions on methods to generate the EMF? My initial thought was to get a coil of wire and send an AC signal through it, but then I realized that if possible I'd want to get up to about the 2.4 GHz range, and I couldn't think of any reasonable source that could be variable and still generate up to that frequency.

Sorry about this one, but I usually call someone on my cell phone and put the EMF tester near it just to show how much EMF is being pressed to your head everytime you answer a call.