I was reading about EMF (electromagnetic fields) and how they can be produced through natural and man-made means. From the World Health Organization website it states that electric fields are created by differences in voltage and magnetic fields are created when electricity flows. Natural EMF can come from build up of electric charges in the atmosphere before a thunderstorm. Man-made is anything we have come up with! Electrical outlets always carry some amount of EMF.
There are extremely low frequency (ELF) fields that have a large variance in frequency ranges with intermediate frequency (IF) from 300Hz to 10 MHz and radio frequency (RF) fields that range form 10 MHz to 300 GHz.
The part that I find interesting is the ELF fields and the sources of IF that are found in radio, television, radar and cell phone antennas.
What does this mean for ghost hunting? That means cell phones (and walkie talkies) on all investigations should be off, put in airplane mode, or are not on a person who is using an EMF detector. There should be no electricity flowing in a room- lights off and anything that runs off of electricity (not battery operated) should also be off. Base line readings should be taken when entering a room. Everything we do is based on best guess. There is no 100% tried and true method or piece of equipment that can be said to find paranormal activity.
I do not always reach for the EMF detector because I know there can be interference. The same goes with using a spirit box- I will not ever use one in an investigation because it uses radio frequency (white noise) to potentially hear something other worldly. It's basically listening to a radio waiting to hear something. Of course you'll hear something there are all kinds of radio frequencies being used! While that is my opinion alone- other members of the team have their own ideas and theories- I stand by my decision on not using a spirit box. Guidelines are in place for using an EMF detector.