Ok these have been around for a while but seem to have made a comeback. The Ghost box. I can understand the theory behind these machines but I have a hard time accepting that the paranormal are communicating through them. Basically a Ghost Box is a simple radio frequency scanner. there are thousands upon thousands of raido waves bouncing around earth and even out into space. Supposedly this machine sits there and scans radio frequencies and ghosts direct what words on what frequencies they want you to hear. Oooookay. I have a Bearcat scanner. One of the good ones too, before the FCC banned the ability to scan some frequencies. This scanner is in our tool kit. I have set it to scan all frequencies and on scan mode it runs through until it finds an active frequency then stops for a few seconds then moves on to the next active frequency. So I end up listening to 1 or 2 words of each conversation. Much like you would hear on a ghost box. If you put one or 2 words from many different conversations together it could possibly be misinterpeted by someone reading a transcript or predisposed to thinking it is one entity communicating accross multiple wavelengths that it is one whole conversation. For example, if I am listening to my scanner and ask "is anyone here?" My scanner might stop on a frequency where the one or two words I hear are yes or no or maybe. Does that mean a ghost answered me? The problem is that those trying to communicate with ghosts want it to be a ghost answering them so they can twist and turn the words they are recieving into a conversation with the boogeyman instead of what it really is. A bunch of random words from multiple conversations, across multiple wavelengths. made into one sentence or phrase. I would be much more impressed if an entity would hold a conversation with me and answer my questions on one single frequency instead of picking them out of many. And if they have the ability to communicate in one way theoretically they should be able to do it in the other. And for that reason, I don't think the Ghost Box is a very reliable investigation tool.