EMF meter recommendations

okay..

itfp, pls don't make fun of me due to my erudition i have always found physical sciences challenging.. eg. raised by a spiritual family i wasn't able to integrate with my science courses in school. i've hacked dozens of circuit bending electronic projects for music but failed to grasp electronic theory despite reading a number of texts. logic i can do.. i program audio dsp for a living, so understand heterodyning and frequency/power based stuff. i guess my head just isn't in a 'sciences' place...

..when i was circuit bending i bought a fluke meter based on recommendations. having solid, reliable tools is a worthwhile foundation for any investigation.

i'd like to be able to objectively measure ..fields and transmissions.. i have failed to effectively discern between electric and magnetic fields in my practical understanding, so i'm not even sure what i want to measure and don't know if a gauss meter is a different animal from an EMF meter or geiger counter.. "it's all waves" - i do audio

i'd like a device that can detect and identify with some modicum of accuracy the frequency and signal strength of energy.. i can live without ELFs. like a tricorder, if you'll forgive me for that.

is there an affordable product or project anyone can direct me to? best to build some kind of variable induction coil with a range of calibrated meters? my objective is to be able to observe when a transmission of unknown content is occuring, whether natural or artificial.

too much?

xoxos said:

don't know if a gauss meter is a different animal from an EMF meter or geiger counter.. "it's all waves"

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No, it's not all waves. A magnetic field is... hard to explain, but it's a field, not a wave . An EMF meter usually measures in gauss (or milligauss). It's the same as the difference between an ammeter and a current meter. A geiger counter measures particle radiation (again, not really waves) and/or gamma radiation depending on the design.

xoxos said:

i'd like a device that can detect and identify with some modicum of accuracy the frequency and signal strength of energy.

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That's impossible to make unless you have the budget of Bruce Wayne. What kind of energy? There's potential, kinetic, electrical, chemical, nuclear, electromagnetic...

xoxos said:

my objective is to be able to observe when a transmission of unknown content is occuring, whether natural or artificial

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Unknown as in coded?

xoxos said:

too much?

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Oh, yes. :tinfoil:

Reminds me of this:

he's doing someone else :hihi: there's a video from years before that of an older gentleman, the relevant search criteria escape me. audio dsp is full of flux capacitors

i'm not really sure if coded would be an accurate description of my criteria the greater part of my interest is in artificial signals in mHz, the thought has also occured to me that it would be interesting when considering eg. why plants in a certain location grow in a different manner.

thank you for the response i expect i'll start with an inexpensive emf meter.

yes, of course.. the turbo encabulator
YouTube - Turbo Encabulator

About your meter, you need to measure magnetic (fixed and low frequency) fields, or electromagnetic (high frequency) field, or pure electric field ?

Cause you need different detectors, for them ..... as for magnetic fields like earth one, you need a high sensitivity hall sensor or a fluxgate sensor, for low frequency fields, is enough a calibrated coil, for high frequency fields a calibrated antenna ..... for pure electric fields the thing is a little bit more complex, cause you need specific sensors (if you need precision), or you can also build one yourself (if you only need a working model, with no lab precision, cause in this case the problem is the calibration), and also you need to know if you want to measure a surface field or a volume field (panel sensor or spherical sensor).

$19.00 - DT-1130 EMF Meter for Electromagnetic Radiation Detector (50Hz~2000MHz) - Multimeters

No one seems to know that the units of measurement are on that thing, and the op doesn't know what he wants to measure. That's a great match, actually

:hihi: i don't see anything i afford that has a spectral capability so yes, an "thar's sumpin thar" meter is likely a good start. bet i can wire one myself.