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Can a HackRF One be used to measure safe/unsafe levels of EMF?
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T3sl4co1l:

--- Quote from: GeoffreyF on October 06, 2018, 07:37:41 pm ---Keep in mind the "inverse square law".  You don't have to be very far from something that is unsafe, even lethal, to be safe.

--- End quote ---

This is particularly true of well-known hazardous EMF, i.e. UV, x-rays and gamma rays.  Well, not always UV, just because it bounces off shiny surfaces and is sometimes broadly illuminated -- e.g. sunlight.  But the rest are absorbed by pretty much everything else, and go inverse-square (or better, where shielding material is involved) with distance.  The consequences in nuclear accidents bear this out (with gruesome results for those most affected :( ).

Tim
4hJXHsxFH:
this is what i call a super helpful comment.

my two cents: i have the rf explorer and i think is a piece of garbage. the best instrument i've found for rf measurement is the acoustimeter or its "junior" version which is the acousticom which is the one i have.

I also have the hackrf one, although have not found a great software to get most of it. I've used sdr sharp.

any recommendations?
4hJXHsxFH:
this is what i call a super helpful comment.

my two cents: i have the rf explorer and i think is a piece of garbage. the best instrument i've found for rf measurement is the acoustimeter or its "junior" version which is the acousticom which is the one i have.

I also have the hackrf one, although have not found a great software to get most of it. I've used sdr sharp.

any recommendations?
--- Quote from: T3sl4co1l on October 06, 2018, 06:22:53 pm ---No, a HackRF cannot measure harmful levels of EMF, whether chronic or acute.

Harmful levels will more than overload the detector.  Consider a thermometer instead. :)

Tim

--- End quote ---
4hJXHsxFH:
milligauss is used for low frequency electromagnetic radiation, like the one caused by home wiring, electric motor, ac systems, and electricity in general. I believe this is frequencies (ultra low emfs) go something like 40 hz to 100,000 hz (100 khz)... pleasr correct my if i'm wrong.

on the other hand, rf radiation is the one cause by cellphones, wifi, cellphone towers etc. and the most common are from 2,400,000,000 hz (2.4 gz), 5,000,000,000 hz (5 ghz) and something around there.

note that the standard channels for cellphone carriers are like 1800 mhz, 1900 mhz etc. which is in the same rd spectrum.

to measure this, the best simple tool to buy is the acousticom (only measures rd) or the tf2, which measures the 3 (magnetic, electric and rf) but my gut (only anecdotal evidence), tells me that for RF the acousticom is beter.

even though if you want an overall good general purpose cheap meter, i would go to the trifield tf2 (around 200$)
tom66:
Any product that calls itself an 'electrosmog' detector needs to be laughed out of the room.
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