hi all i had my gta 500 and took it out on some fields i found plenty of iron with it but little confused on the settings namely audio and depth. with the depth if i decrease it im losing sensitivity is this for minerilzation also audio if i set it to max theres a buzzing noise so i decrease just till i cant hear the noise am i on the right track with this or am i completly wrong
thx in advance
paul
thx in advance
paul