I have doing a lot of research into ghost hunting and visited this guy's page:
http://www.mcmsys.com/~brammer/
It sounds very interesting to use the EVP to capture what ghosts are saying, but I wonder if higher level frequency spirit guides could also be captured. Has anyone ever done this? I am definitely planning on getting my own equipment and giving it a shot, but I know I have to be careful if it is really spirit guides and not just some random spirit.