GTAxâ¢ 550 - Garrett

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Setting Discrimination (SelectingNotches)Using only the discrimination of its two factory-setoperating modes, the GTAx 550 will more than satisfythe requirements of almost every treasure hunter.Many will never require any other discrimination.Still, this detector offers more; it offers precisecontrols that enable any treasure hunter to tailor adetection mode to his or her specific requirementsby setting accept/reject notches.The Lower Scale of the Graphic Display containssegments. Those that are displayed representtargets that will cause the detector's sound toincrease when they are detected. In Mode A forinstance, all segments shown indicate that everymetal target will cause the GTAx 550 to respondaudibly. Specific notches can be created by addingor removing targets from acceptance in eitheroperating mode.Every target detected will always be indicated by thetarget ID cursor.32
There are two ways to set discrimination.First method: Press the (+) and (-) touchpads toposition the blinking Upper Scale cursor abovethe Lower Scale segment corresponding to theparticular target to be detected or ignored. If thesegment is displayed, that particular target willbe detected. If you wish to reject that type oftarget, press the ACCEPT/REJECT touchpad. Thesegment will disappear, creating a reject notch. Ifthe Lower Scale segment is not displayed, press theACCEPT/REJECT touchpad to illuminate it, creatingan accept notch, and your GTAx 550 will begindetecting targets represented by that segment.Second method: Pass the searchcoil over anobject to be accepted or rejected as a target or passthe particular target across the face of the coil abouttwo inches from its surface. Check to make certainthere is an appropriate cursor on the Upper Scale ofthe Graphic Display. Then press ACCEPT/REJECTdepending upon your discrimination choice for thisspecific target.33
Page 3 and 4: target acceptance / rejection, prec
Page 5 and 6: Making Adjustments 29Mode A (Zero D
Page 8: GTAx 550 ASSEMBLYNo tools are requi
Page 14 and 15: weighs less than 2 pounds. Yet, all
Page 16 and 17: 2. PINPOINT (Coin Depth) - Activate
Page 18 and 19: interference and irregular ground m
Page 20 and 21: - AND + - Use these touchpads to ad
Page 22 and 23: Target IdentificationTarget identif
Page 24 and 25: You can also watch the Upper Scale
Page 26 and 27: The Upper Scale of the graphic disp
Page 28 and 29: Junk TargetsYour GTAx 550, in its f
Page 30 and 31: Relic hunters, prospectors and othe
Page 34 and 35: Note: Each time the detector is tur
Page 36 and 37: BENCH TESTSBench Tests enable you t
Page 38 and 39: TEST PLOT CONSTRUCTIONAs you operat
Page 40 and 41: BATTERIESThe GTAx 550 is equipped w
Page 42 and 43: 5. Press out the old batteries from
Page 44 and 45: The 9"x12" PROformance—Use to inc
Page 46 and 47: SPECIALIZED HUNTINGFor literature t
Page 48 and 49: Since the 550 is a motion detector,
Page 50 and 51: You have carefully packed the detec
Page 52 and 53: Charles Garrett's Ghost Town Treasu
Page 54 and 55: MAIL-IN ORDER FORMAdd $2.00 for fir
Page 56 and 57: control, display and panel.• Conv
Page 58 and 59: • I will observe the Golden Rule,
Page 60: 1881 W. State StreetGarland, Texas

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GTAxâ¢ 550 - Garrett