I took my new Excal II 1000 to the Jersey Shore today. First time using it. My question is after setting my threshold and other settings as I am hunting I will get a loud buzzing sound that doesn't go away unless I pass the coil over my scoop and it seems to reset the threshold. When its buzzing the Volume control has no control over the volume. Is this normal? Not sure if I have a defective unit. If I pass over a coin it beeps and resets but when this happens the loud buzzing sound stays on. Am I passing over an iron target and if so why doesn't it reset to the set threshold after moving from the target? It seems it will be annoying. Can someone help with this?. Maybe different settings? This is in discriminate mode. Thanks for your help.
Anthony
Anthony