This video is to show the signal Response of the GPZ 7000, 19 Inch Coil. Test conducted on Mineralised Ground, buried targets undisturbed for approx. 7 years. Settings used were basically what I use for the majority of my detecting, however the audio was increased for use with the speaker as I always use headphones. I over compensated for the audio by 1 or 2 increments as I was unsure how good the gopro would pick up the audio.