Many paranormal enthusiasts and researchers might not have heard of this yet but it is starting to catch on. Previously, people have been using EMF meters, digital recorders, and full-spectrum cameras to capture evidence of the unknown. However, most of the time nothing has been achieved.
Exploring haunted sites takes a daring soul but they ultimately want to capture some kind of documentation. It is a learning process and many believe these things take time to understand.
About three years ago in Estes Park, Colorado, a new groundbreaking method was conceived. It took place within the infamous Stanley Hotel, known to be a haunted location. This new extrasensory communication idea was the brainchild of Karl Pfeiffer, Connor Randall and Michelle Tate.
They had been kicking around ideas since 2011, but on January 21, 2016, everything changed. They decided to isolate the noise from a SB7 Spirit Box. This device transmits signals such as radio signals into random chunks of noises.
Read more here: https://www.freaklore.com/this-groundbreaking-method-is-changing-the-way-paranormal-investigations-are-being-conducted