GTAx™ 550 - Garrett

Junk TargetsYour GTAx 550, in its factory set B (Coins) detectionmode, will not respond audibly to most junk items.Occasionally, you'll encounter targets that causethe detector to respond with a quick, sharp sound,not like the clear, strong signal of a coin. Before youdig up some of the targets that make irregular audio"blips", see how they register on the Upper Scaleof the graphic display. Learn to recognize them.Because your GTAx 550, in the factory preset ModeB is set primarily to hunt coins, it will also preciselyidentify small junk targets. Some larger objectssuch as aluminum cans may, however, present a"good" audio signal due to their composition. Thisis normal.28