Jabby brought up EMF in an earlier thread so I thought I would perform some tests. Now these are very non-scientific backyard DIY observations, and no claims are made by me one way or another as to the safety of this equipment. I am just passing on what I saw using a cheap EMF meter. So if you get cancer or grow a 3rd arm IT'S NOT MY FAULT!
The meter I used is here
http://amzn.to/2Grg8ovAlright, so I started roughly 20' away from my 3 miners (2 S9s and 1 S7 all running new Bitmain APW3++). Zero readings on my meter.
10' No reading on the meter
1' from an S9 Jan batch 13.5 TH/s
![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fwww.buildpics.org%2Fwp-content%2Fgallery%2Fantminer-emf%2F20180129_000337852_iOS.jpg&t=663&c=PUj3USHUFlzGBw)
6.5" From an S9 Jan batch 13.5 TH/s
![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fwww.buildpics.org%2Fwp-content%2Fgallery%2Fantminer-emf%2F20180129_000355410_iOS.jpg&t=663&c=W0F1tjj2r7TUmQ)
Right up on the miner
![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fwww.buildpics.org%2Fwp-content%2Fgallery%2Fantminer-emf%2F20180129_000401345_iOS.jpg&t=663&c=aHRjSAkWkg0PSQ)
After that I tested some household items.
Regular fan ~12"
![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fwww.buildpics.org%2Fwp-content%2Fgallery%2Fantminer-emf%2F20180129_000441487_iOS.jpg&t=663&c=YXc65scTYsURKA)
Regular fan ~5"
![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fwww.buildpics.org%2Fwp-content%2Fgallery%2Fantminer-emf%2F20180129_000446179_iOS.jpg&t=663&c=9y6_ZL6YQiSAIg)
Right up on the fan motor
![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fwww.buildpics.org%2Fwp-content%2Fgallery%2Fantminer-emf%2F20180129_000457495_iOS.jpg&t=663&c=hYjboO6XJU1yoQ)
Breaker panel
![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fwww.buildpics.org%2Fwp-content%2Fgallery%2Fantminer-emf%2F20180129_000558627_iOS.jpg&t=663&c=UNVkGFaHCy1Yyg)
Breaker
![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fwww.buildpics.org%2Fwp-content%2Fgallery%2Fantminer-emf%2F20180129_000607769_iOS.jpg&t=663&c=N145L6673vE_-Q)
Brother printer!
![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fwww.buildpics.org%2Fwp-content%2Fgallery%2Fantminer-emf%2F20180129_000743642_iOS.jpg&t=663&c=RB7URh0g4ctHxg)
Pioneer Stereo Reciver
![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fwww.buildpics.org%2Fwp-content%2Fgallery%2Fantminer-emf%2F20180129_000844040_iOS.jpg&t=663&c=kaXtP21nvYPnmA)
TV
![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fwww.buildpics.org%2Fwp-content%2Fgallery%2Fantminer-emf%2F20180129_000917913_iOS.jpg&t=663&c=9s_OpHZ80UfT9A)
Microwave running
![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fwww.buildpics.org%2Fwp-content%2Fgallery%2Fantminer-emf%2F20180129_001002418_iOS.jpg&t=663&c=WQREme0RCqXlbQ)
So I feel that yeah, if you blanket yourself in Antminers it's bad
![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif)
But more than a foot or so and you do not have to worry. As an anecdote the meter started flashing harmful when I was outside my garage near a power line...