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3. Sometimes targets close together will cause a confusing signal - try sweeping from 

different angles to help isolate the targets. 
Pinpointing the target: Good pinpointing is important as it helps to avoid damage to the 

object and to the ground. During a competitive hunt, good pinpointing is especially 
important for quick target retrieval. 
"X"ing as shown helps to pinpoint the target: 
Your detector can tell you many things about a particular target that can be helpful in 

determining whether or not to "dig". Learn to make use of all the information available. 
EXAMPLE: The sound response can tell a lot - a coin usually gives a good solid sound 

regardless of sweep direction, trash does not. When checking a target, listen to the "size" 
of the sound in the pinpoint mode. A large target, like a sprinkler head, produces sound 

over a much greater area than does a single coin. 
Accuracy: Although your detector is very accurate, it is not perfect and certain items may 

give responses that are easily misinterpreted. An example of this would be a deeply buried 
aluminum can that sounds like a shallower coin would. 
Halo effect: Some nails, nuts, bolts, and other iron objects such as old bottle caps often 
oxidize a lot and the halo around these objects can make it very hard for the detector's 

circuitry to ignore or reject them. 
Hot rocks: With any "motion" type detector you may find some targets that sound "good" in 

the disc/notch mode but when you try to pinpoint the signal, you find the target 
"disappears". This is because you have located what TH'ers call "hot rocks". These "hot 

rocks" are actually less conductive than the ground over which you are searching. 
GLOSSARY OF TERMS 
1. G.B. - Abbreviated term for "ground balance". 
2. DISC - Abbreviated term for "discrimination". 
3. A.T. I. - Abbreviated term for audio target identification. 
MlNERALlZATlON - Refers to soils containing ferric oxides ormagnetic particles. HALO 

EFFECT - Certain metal, when buried for long periods, oxidize and leech into the 
surrounding soil. This results in a "metallic halo" around the buried object. TARGET - Refers 

to any object sensed (detected) by the detector. 
SWEEP - The action of moving the search coil over the ground when attempting to locate 

metal. 
DETECTOR CARE & SERVICE 
Metal detectors are sensitive electronic instruments. Although it does not have to be 
babied, reasonable care must be taken to help ensure a long trouble-free life for your 

detector. 
KEEP IT CLEAN . . . The search coil and rod are waterproof. They can be cleaned with fresh 

water and a mild cleanser. The case can be wiped clean with a damp cloth. Check the 
batteries often for leakage and never leave them stored in the unit for prolonged periods of 

time. 
KEEP IT COOL . . . Never store your detector in an extremely hot environment, such as an 

Summary of Contents for Turbo

Page 1: ...aws whether national state or local Aid law enforcement officials whenever possible 3 Never destroy priceless historical or archaeological treasures 4 Leave the land and vegetation as it was Fill in all holes 5 Remove all trash and litter when you leave 6 All treasure hunters may be judged by the example you set Always obtain permission before searching any site Be extremely careful with your prob...

Page 2: ...lects 4 primary or back up batteries to power the unit 2 SPEED Selects fast sweep and pinpoint or slow sweep and pinpoint 3 DISC NOTCH Variable control adjusts discrimination or notch setting 4 FREQUENCY Rotary switch that adjusts the unit s operating frequency 5 MODE Selects the pinpointing mode all metal or the motion mode disc and notch 6 CONNECTOR Search coil cable connection 7 DISC NOTCH Sele...

Page 3: ...uits The primary position turns the unit ON by applying power from the two 9 volt penlight AA cell packs These packs are connected to the longer of the two battery leads on each side of the control housing The back up position also turns the unit ON however the power is now applied from the two 9 volt transistor batteries The unit should normally be operated from the primary batteries and the back...

Page 4: ...the interference is reduced the most 5 Fig 14 MODE TOGGLE This is a three position toggle that has two stationary and one momentary positions The momentary position up instantly retunes the all metals pinpoint mode The center setting is the all metals pinpoint mode This mode automatically narrows the target signal for easier pinpointing When the speed toggle is set to fast the pinpoint mode narrow...

Page 5: ...should sweep the search coil as close to the ground as possible without actually touching or rubbing the ground Hitting the ground or rocks may cause a false signal much like a desired target would sound Sweeping the coil too high above the ground will result in a loss of depth When operating the detector some false signals may occur at the end of your swing At the point where the coil reversed di...

Page 6: ...ctor s circuitry to ignore or reject them Hot rocks With any motion type detector you may find some targets that sound good in the disc notch mode but when you try to pinpoint the signal you find the target disappears This is because you have located what TH ers call hot rocks These hot rocks are actually less conductive than the ground over which you are searching GLOSSARY OF TERMS 1 G B Abbrevia...

Page 7: ...ons c Adjust stability control and or frequency switch 3 Constant oscillating tone a Low batteries if operating in the notch mode b Adjust stability control and or frequency switch This effect can be caused by external electrical sources such as power lines CB radios or other nearby detectors 4 No sensitivity and or poor accuracy a The disc notch mode requires motion to produce sufficient signal b...

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