All of this gear is hooked up to a surveyor’s pole and hand carried to every industry station. The magnetic receiver filters and screens different frequencies, amplifies the indicators by noise-reduction algorithms, measures the energy on the signature magnetic area, and converts all the information to a recordable info set http://hgi-home-page94714.ampedpages.com/The-smart-Trick-of-dam-seepage-That-No-One-is-Discussing-22752714