I have a Minelab Excalibur II and a Minelab 800, when air testing the excel can detect a quarter three times the distance fron the coil than the 800 will. On the beach the 800 has signaled small pull tabs 8 inches down in the sand. this is after the upgrade. any idea why on air testing it is so poor? I have not tried both. on the beach over the same object but may be my project today.
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