First Texas F19MD Metal Detector User Manual F19 MANUAL printer

First Texas Products LLC Metal Detector F19 MANUAL printer

Users Manual

FOR COMPLETE DETAILS VISIT WWW.FISHERLAB.COM • 1-800-685-5050ACCESSORIESFOR COMPLETE DETAILS VISIT WWW.FISHERLAB.COM • 1-800-685-5050Fisher® Padded Carry BagRugged double stitched construction. Includes handy exteriorpocket for extra batteries or small accessories. – 103693000CFisher® Camo BackpackLarge camouflage and black with Fisher® logo. – FCBACKPACKFisher® Camo PouchCamo pouch with two inside pockets, belt included. – PCH-FFisher® Stereo Deluxe HeadphonesAdjustable single-volume control, 1/4 jack” jack, aluminum cones and coiled cord. 9720971000Stereo HeadphonesUse with Fisher® metal detectors. Lightweight and adjustable with true stereo sound, adjustable volume, 1/4 jack with 1/8 adaptor, 4’ cable. – 9720950000Metal Sand ScoopLarge galvanized metal scoop with filtering holes. Strong Rubberized grip. – SAND SCOOPGold PickTempered steel head is 10” long, edge is 3-1/4” wide, overall length 19”. Durable fiberglass handle, rubberized grip and super magnet attached to the head. – GOLDPICKLesche KnifeMade from high quality heat-treated tempered steel. The ultimate digging tool.Comes with a durable sheath. 12" in length with a 7" serrated blade. – LESCHE KNIFE Fisher® Baseball Cap One-size-fits-all. – FCAP Fisher® Camo Baseball Cap One-size-fits-all. Velcro closure, camouflage with Fisher® logo. – FCCAP Fisher® Coffee Mug16oz, stainless steel and plastic – FMUGFisher® T-Shirt100% cotton with Fisher® Logo. Sizes: S, M, LG, XL & XXL – FTSHIRTReplacement/Accessory Searchcoils11” DD Elliptical, Open Accessory Coil – 11COIL-GB*10” DD Elliptical, Closed Accessory Coil – 10COILDD-FRL 5” DD Round, Closed Replacement Coil – 5COIL-GBUGCoil Covers*Specially made to protect your coil from abrasion and damage. 11” DD Coil Cover – COVER-11DD10” Biaxial Accessory Coil Cover – 202319000 5” DD Coil Cover – 5COVER-BLKRain CoverSpecially designed to protect your detector from dirt and water – RAINCOV-GBGoldProspecting Kits*Image not shown.OWNER’S MANUALMF19 r ev 1 012915TMUse 9-voltALKALINE batteries.Do not use“Heavy Duty” batteries.Do not useordinary “Zinc Carbon” batteries.F19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 1
239Copyright© 2015 by Fisher Research Labs, Inc.All rights reserved, including the right to reproduce this book, or parts thereof, in any form.Published by Fisher Research Labs, Inc.Fisher®is a registered trademark of Fisher Research Labs, Inc.www.fisherlab.com1465 Henry Brennan Dr., El Paso, TX 79936 • (915) 225-0333TABLE OF CONTENTSIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7Quick-Start Demo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-9Headphones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9Basics Of Metal Detecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-11Ground Minerals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10Trash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11Identifying Buried Objects . . . . . . . . . . . . . . . . . . . . . . . . . . .11Size and Depth of Buried Objects . . . . . . . . . . . . . . . . . . . . .11electromagnetic Interference (e MI) . . . . . . . . . . . . . . . . . . . .11Operation and Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13Control KnobsOff / On / Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13Disc / All Metal / Threshold . . . . . . . . . . . . . . . . . . . . . . . .13Touchpad ControlsMenu/Ground Grab®(Computerized Ground Balancing) . . . .14+and - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14Pinpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14Operating in All Metal ModeGround Grab®(Computerized Ground Balancing) . . . . . . . .15Setting the Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15Unwanted Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15Sweeping the Searchcoil . . . . . . . . . . . . . . . . . . . . . . . . . . . .15r eading the Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16Target Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 Operating in Discrimination ModeGround Grab®(Computerized Ground Balancing) . . . . . . . .17Setting the Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17MeNU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17-19Unwanted Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20Sweeping the Searchcoil . . . . . . . . . . . . . . . . . . . . . . . . . . . .20Using Pinpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20r eading the Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-22Ground Balancing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23-25Ground Balancing Technical Info . . . . . . . . . . . . . . . . . . . . . . . . . .26Target Display & Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27Gold Prospecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28r elic Hunting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29Hot r ocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30electromagnetic Interference (e MI) . . . . . . . . . . . . . . . . . . . . . .31-32Search Techniques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33Target Pinpointing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34Optional 5”DD Searchcoil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35Device Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36Treasure Hunter’s Code of ethics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Back CoverF19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 2
35-YEAR LIMITED WARRANTYRegister your warranty on-line for a chance to win aFREE DETECTOR.For details, visit www.fisherlab.comThe F19™ metal detector is warranted against defects in materialsand workmanship under normal use for 5 years from the date ofpurchase to the original owner. Damage due to neglect, accidental damage, or misuse of thisproduct is not covered under this Warranty. Decisions regardingabuse or misuse of the detector are made solely at the discretionof the manufacturer. Proof of Purchase is required to make a claim under thiswarranty.Liability under this Warranty is limited to replacing or repairing, atour option, the metal detector returned, shipping cost prepaid toFisher Labs. Shipping cost to Fisher Labs is the responsibility of theconsumer.To return your detector for service, please first contact Fisher Labsfor a r eturn Authorization (r A) Number. r eference the r Anumber on your package and return the detector within 15 days ofcalling to:Fisher Research Labs, Inc.1465 Henry Brennan Dr.El Paso, TX 79936Phone: 915-225-0333 ext.118NOTICE TO CUSTOMERS OUTSIDE THE U.S.A.This Warranty may vary in other countries; check with your distributorfor details.Warranty does not cover shipping costs.Warranty coverage does not include the cost of transportingthe detector back to an owner who is located outside of theUnited States of America.F19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 338Introduction to the F19TMThe new F19™ is unique among relic hunting detectors for its versatilefunction as an all-purpose treasure detector and also its high sensitivity tosmall gold nuggets.The controls, menu options and features are tailored to relic-hunting, includinga sophisticated ground balancing system, separate control oversignal gain and threshold and a unique discrimination controlsystem. These features also make for a great gold prospecting detector,especially when the F19 is outfitted with the optional 5” DDsearchcoil. While the F19 makes for a highly competent coinshootingdetector, its user interface and features are not specificallydesigned for this purpose. As a coin-shooter, you will notice that theF19 exhibits slightly lower sensitivity to high-conductivity coins,like a U.S. quarter; this is a result of its specialized design toemphasize sensitivity to smaller, lower conductivity metals like relics andgold nuggets.The F19 is outfitted with a 10”DD closed elliptical searchcoil as standardequipment since this searchcoil construction is best-suited to relic-hunting.At the trashiest sites, you may find the smaller optional 5”DD searchcoil makespinpointing easier, is better suited to penetrate highly mineralized soils andimproves target separation.Congratulations!Congratulations on your purchase of the new F19™ metal detector. The F19™has been custom designed to find the smallest targets, provide superior targetseparation and features advanced discrimination control.Whether you use your Detector in the backyard, at the shoreline, in themountains or fields afar, your investment will let you experience the excitementof searching for yet to be discovered treasures and give you years of outdoorenjoyment. Buried treasure can be as near as your own door step and stretchfrom horizon to horizon. On your own or with friends, you’ll never run out ofplaces to use your F19.This manual has been written to help you get optimal use of your detector, so wehope you will read it thoroughly before your first outing and will also refer back tothis manual from time to time to reinforce features and methods as you becomemore proficient in the field.Happy Hunting from Fisher Research Labs!
374TERMINOLOGYThe following terms are used throughout the manual, and are standardterminology among detectorists.RELICA relic is an object of interest by reason of its age or its association withthe past. Many relics are made of iron, but can also be made of bronzeor precious metals.IRONIron is a common, low-grade metal that is an undesirable target in certainmetal detecting applications. examples of undesirable iron objects are oldcans, pipes, bolts and nails.Sometimes, the desired target is made of iron. Property markers, forinstance, contain iron. valuable relics can also be composed of iron;cannon balls, old armaments and parts of old structures and vehicles canalso be composed of iron.FERROUSMetals which are made of, or contain, iron.ELIMINATIONr eference to a metal being "eliminated" means that the detector will notemit a tone, nor display a Target-ID, when a metal object passes throughthe searchcoil's detection field.DISCRIMINATIONWhen the detector emits different tones for different types of metals, andwhen the detector "eliminates" certain metals, we refer to this as thedetector "discriminating" among different types of metals.Discrimination is an important feature of professional metal detectors.Discrimination allows the user to ignore trash and otherwise undesirableobjects.PINPOINTINGPinpointing is the process of finding the exact location of a buried object.Long-buried metals can appear exactly like the surrounding soil, and cantherefore be very hard to isolate from the soil.V.C.O.Meaning “voltage controlled oscillator,” the v.C.O. audio method causesboth the audio pitch and the volume to rise as signal strength increases.v.C.O. improves the user's ability to interpret a target's size and depth.very weak signals (for small or very deeply buried objects) have thefaintest volume and the lowest pitch. Larger objects, and those closer tothe searchcoil, will induce a higher volume and higher pitch sound.GROUND BALANCINGGround Balancing is the ability of the detector to ignore, or "see through,"the earth's naturally occurring minerals, and only sound a tone when ametal object is detected. This detector incorporates proprietary circuitry toeliminate false signals from many mineralized soils.According to FCC part 15.21 Changes or Modifications made to this device not expressly approved bythe party responsible for compliance could void the users authority to operate this equipment.This device complies with FCC Part 15 Subpart B Section 15.109 Class B.This equipment has been tested and found to comply with the limits for a Class B digital device,pursuant to Part 15 of the FCC r ules. These limits are designed to provide reasonable protectionagainst harmful interference in a residential installation. This equipment generates, uses and canradiate radio frequency energy and, if not installed and used in accordance with the instructions,may cause harmful interference to radio communications. However, there is no guarantee thatinterference will not occur in a particular installation. If this equipment does cause harmfulinterference to radio or television reception, which can be determined by turning the equipment offand on, the user is encouraged to try to correct the interference by one or more of the followingmeasures:-- r eorient or relocate the receiving antenna.-- Increase the separation between the equipment and receiver.-- Connect the equipment into an outlet on a circuit different from that to which the receiver isconnected.-- Consult the dealer or an experienced radio/Tv technician for helpThis device complies with Industry Canada license-exempt r SS standard(s). Operation is subjectto the following two conditions: (1) this device may not cause interference, and (2) this device mustaccept any interference, including interference that may cause undesired operation of the device.This radio transmitter 8188A-F19MD has been approved by Industry Canada to operate with theantenna types listed below with the maximum permissible gain and required antenna impedancefor each antenna type indicated. Antenna types not included in this list, having a gain greater thanthe maximum gain indicated for that type, are strictly prohibited for use with this device.Antennas:1. 5” DD Coil, Part Number 5COIL-GBUG2. 10” DD Coil,Part Number 10COILDD-Fr L3. 11” DD Coil, Part Number 11COIL-GBUGUnder Industry Canada regulations, this radio transmitter may only operate using an antenna of atype and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reducepotential radio interference to other users, the antenna type and its gain should be so chosen thatthe equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successfulcommunication.Le présent appareil est conforme aux CNr d’Industrie Canada applicables aux appareils radioexempts de licence. L’exploitation est autorisée aux deux conditions suivantes : (1) l’appareil nedoit pas produire de brouillage, et (2) l’utilisateur de l’appareil doit accepter tout brouillageradioélectrique subi, même si le brouillage est susceptible d’en compromettre le fonctionnement.Le présent émetteur radio 8188A-F19MD a été approuvé par Industrie Canada pour fonctionneravec les types d’antenne énumérés ci-dessous et ayant un gain admissible maximal et l’impédancerequise pour chaque type d’antenne. Les types d’antenne non inclus dans cette liste, ou dont legain est supérieur au gain maximal indiqué, sont strictement interdits pour l’exploitation del’émetteur.Conformément à la réglementation d’Industrie Canada, le présent émetteur radio peut fonctionneravec une antenne d’un type et d’un gain maximal (ou inférieur) approuvé pour l’émetteur parIndustrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à l’intention desautres utilisateurs, il faut choisir le type d’antenne et son gain de sorte que la puissance isotroperayonnée équivalente (p.i.r.e.) ne dépasse pas l’intensité nécessaire à l’établissement d’unecommunication satisfaisante.F19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 4
36ASSEMBLYAdjusting the ArmrestThe armrest may be movedforward or backward by removingthe single screw and nut, and thenrepositioning the 2-piece armrest.Users with shorter arms may findthe armrest more comfortable inthe forward position. In order tomove the armrest backward, theplastic plug must be removed fromthe aluminum tube.Armrest StrapSome users prefer to use the strapwhen swinging the detectorvigorously, in order to hold thedetector securely against the arm.The detector can always be usedwithout the strap, with nocompromise to detector balanceand stability under most conditions.Hand-gripNutScrewSearchcoilCableCablePlugSearchcoilS-RodArmrestArm StrapVelcroStrapMiddleStemVelcroStrapLockingCollarLockingCollar1/4” Headphone JackVOLUMEV-BREAKNOTCH WIDTHDISCGND BALVOLUMEV-BREAKNOTCH WIDTHDISCGND BALDEVICE SPECIFICATIONSMechanical: S-rod with electronics housing on rod, 3-piece breakdownconstruction, nonmetallic telescoping lower rod, adjustable position ArmrestWeight: 2 lbs. 12 oz. (1.25 kg) with battery installedStandard searchcoil: 10 inch (25.4 cm) closed-frame elliptical biaxial,waterproofBatteries: Single 9 volt rectangular alkalineOperating principle: v LF induction balanceOperating frequency: 19.2 kHz, crystal controlledReactive overload: 10,000 micro-cgs (with standard searchcoil)Resistive overload: 1,200 micro-cgs (with standard searchcoil)Ground balance range: From ferrite to salt water inclusiveDiscrimination ground suppression: Combination of 2nd and 3rdorder methodsTarget-ID ground suppression: 3rd orderBattery life: 15+ hours on good quality alkaline (less using backlight)Operating temp range: 14 to 122 degrees F (-10 to +50 C)Operating humidity range: 0 - 90% noncondensingImmediately after powering on, your detector's unique 10-digit serialnumber is displayed once on the LCD. Two digits are displayed at atime; five 2-digit numbers are displayed in sequence. This 10-digitserial number is the same serial number imprinted on the label insidethe battery compartment and on the box.TREASURE HUNTER’S CODE OF ETHICS• Always check Federal, State, County and local laws before searching.• Respect private property and do not enter private property without theowner’s permission.• Take care to refill all holes and leave no damage.• Remove and dispose of any and all trash and litter found.• Appreciate and protect our inheritance of natural resources, wildlife andprivate property.• Act as an ambassador for the hobby; use thoughtfulness, consideration andcourtesy at all times.• Never destroy historical or archaeological treasures.• All treasure hunters may be judged by the example you set; always conductyourself with courtesy and consideration of others.5F19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 5
35 F19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 66ASSEMBLYAssembly is easy andrequires no tools.●1Position S-Rod upright.●2Rotate theLOCKING COLLARfully in thecounterclockwisedirection.●3Insert your fingerinside the tube andmake sure the INTERNAL CAM LOCK is flush with theinside of the tube.●4Insert the MIDDLE STEM into the S-ROD,with the SILVER BUTTON pointed upward●5Rotate the MIDDLE STEM until the SILVER BUTTONsnaps into the hole.●6Twist the LOCKING COLLAR fully in the clockwise directionuntil it locks.●7Repeat this process on the LOWER STEM.●8Using the BOLT and KNURLED KNOB, attach theSEARCHCOIL to the LOWER STEM.●9Adjust the LOWER STEM to a length that lets you maintain acomfortable upright posture, with your arm relaxed at your side,and the SEARCHCOIL parallel to the ground in front of you.●10Wind the CABLE securely around the STEMS, leaving slackat the bottom.●11Connect CABLE PLUG to housing.Do not twist the Cable or Plug. Turn Locking Ring only. Useminimal finger pressure to start the threads. Do not cross-thread. When the Locking Ring is fully engaged over thethreaded connector, give it a firm turn to make sure it is verytight. When the Locking Ring is fully engaged over thethreaded connector, it may not cover all of the threads.●12Tighten both LOCKING COLLARS.S-RODLOCKING COLLARINTERNALCAM LOCKSILVER BUTTONMIDDLESTEMS-ROD MIDDLE STEM●2●3●4*Note: Very tall users can purchase the optional ExtendedLower Stem (TUBE5X), for extended reach.Caution:Forcing in MIDDLE STEM with CAMLOCK raised may form a burr oncam lock. If this happens, removeburr with knife to allow insertion.LockingCollarLockingCollarS-Rod VelcroStrapVelcroStrapKnurledKnobHand-gripSearchcoilCableLowerStemMiddleStemCablePlugBoltSearchcoilS-ROD MIDDLE STEM●4●5Relic-Hunting and Coin-Shootingwith the Optional 5” DD SearchcoilWhile the F19™ is a high performance, specialized relic hunting metal detector,it is also a good multi-purpose detector. With the purchase of a 5” DD searchcoil,you can bring more precision to your coin-shooting and gold prospectingsearches.The standard 10” elliptical F19™ searchcoil is engineered for target separationand a wide sweep. This searchoil is ideal for searching field stubble and forestdebris often associated with relic hunting sites.If you want a smaller sweep area, the 5” DD should be considered.Advantages of the 5” DD searchcoil over the standard 10” searchcoil are:1. More separation between adjacent buried targets.Better at extremely trashy sites.2. More sensitivity to the tiniest targets and gold pieces.3. Fits into tight spaces.For information aboutthe 5” DD searchcoil(Part# 5COIL-GBUG,MSRP=$159.99),Please call800-685-5050.The Gold Bug Coil operates with the Fisher® F19●13Secure cable with velcro straps as shown.
34 7A 3-segment battery indicator at the top-left of the display indicates thebattery condition.The detector requires a single 9-volt ALKALINE battery.Do not use ordinary zinc carbon batteries.Do not use “Heavy Duty” batteries.Such low quality batteries may work in the detector but have a short life andare prone to leakage.r echargeable batteries can also be used.If you wish to use rechargeable batteries, we recommend using aNickel Metal Hydride rechargeable battery.The battery compartment is located on the back side of the housing.Slide the battery door to the side and remove it to expose the batterycompartment.BATTERY LIFEexpect about 15 to 20 hours of life from a 9-volt alkaline battery, without useof backlight.Backlight increases power consumption and decreases battery life, withsignificant power drain at maximum brightness.r echargeable batteries can provide up to 8 hours of usage per charge.SPEAKER VOLUME AND BATTERY CHARGEYou may notice the speaker volume drop when only one battery segment isilluminated.With one segment flashing, low speaker volume will be very apparent.BATTERY INDICATORThe 3-segment battery indicator has 4 stages of indication.These indications are accurate for a 9-volt alkaline battery.Segments Illuminated Battery Voltage3 -segments more than 8.4 volts2 -segments more than 7.5 volts1 -segment more than 6.8 volts1 -segment flashing less than 6.8 voltsAfter the 1st segment begins flashing, expect the detector to shut off within 10minutes.A rechargeable battery will usually illuminate two to three segmentsthroughout most of its useful charge. But as soon as it drains to the 1-segmentlevel, it will then lose its charge very rapidly.BATTERY DISPOSAL & RECYCLINGAlkaline batteries may be disposed of in a normal waste receptacle orrecycled. Non-Alkaline batteries should be recycled. In the state of Californiaall battery types must be recycled. Please refer to local municipalities fordetailed disposal and recycling requirements.BATTERIESTARGET PINPOINTINGAfter you have identified a target using Discrimination Mode,press-and-hold the PINPOINT button to identify the target’s exactlocation. This technique can yield more information about the target’sshape and size and also find its exact location to facilitate extraction.Pinpoint as follows:1. Position the searchcoil just barely off the ground, and to the side ofthe target.2. Now move the searchcoil slowly across the target; you can locateit by the sound. The target is located directly under where thesound is loudest.Narrow It Down:1. To narrow the response further, position the center of the searchcoilnear the center of the response pattern, but not directly over thecenter.2. r elease the PINPOINT button.3. Press-and-hold PINPOINT button again.4. r epeat this narrowing procedure to narrow the field of detectionfurther.Note: Depth indication is less accurateafter narrowing.SeAr CHCOIL Dr IFTIf you plan to use thePINPOINT Mode forcontinuous searching,realize that drift will occurover time, causing thedetector to gain or losesensitivity. Periodic retuningof the detector is required tominimize drift; release andpress PINPOINT again toretune.F19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 7
833SEARCH TECHNIQUESTarget VerificationAfter detecting a target, do thefollowing:1. Walk around the target in a circle.2. While circling the target, continuesweeping the searchcoil across thetarget.3. Sweep once every 30° or 40° ofthe circle.If the tone does not change andthe Target-ID value is consistent asyou circle the target, you can behighly confident of the target’sidentification.If the tone or Target-ID changesas you circle the target, you mayhave multiple targets or anirregularly shaped object.If the tone completelydisappears at different angles, thetarget may be trash or a low-valuemetal. If you are new to the hobby, dig all targets. With practice in the field, youwill soon be able to correlate audible and visual target feedback withcertain types of metal objects.Pinpointing in Discrimination Mode:1. Sweep over target in narrowing side-to-side pattern.2. Take visual note of spot on ground where “beep” occurs.3. Step 90° to the side of the target.4. Sweep searchcoil over same area, at 90° to 1st sweep pattern.5. This pinpoints the target location with an “X.”SEARCHCOIL MOVEMENTWhen swing ing the searchcoil,be care ful to keep it level with theground about 1/2 inch from the sur -face. Nev er swing the searchcoillike a pen du lum.Wr ONGCOr r eCTI. Supplies Needed• a Nail • a Zinc Penny (dated after 1982)• a Nickel • a QuarterII. Position the Detectora. Place the detector on a table,with the searchcoil hanging overthe edge. Or better, have a friendhold the detector, with thesearchcoil off the ground.b. Keep the searchcoil away fromwalls, floors and metal objects.c. r emove watches, rings andjewelry.d. Turn off fluorescent lights,appliances and cell phoneswhose electromagnetic emissions maycause interference.e. Pivot the searchcoil back.III. Click on power with the left knob. Set the Gain at the 12:00position for this demonstration.IV. Click the right knob to the left to enter DISC setting.V. Press until “v OLUMe” is highlighted on display.a. Press or until number on display is 12.b. Wave the nail over the searchcoil. Notice volume.c. Wave a coin over the searchcoil. Notice louder volume.d. enter the menu/volume control again.Use and to change volume as you wave nail oversearchcoil. Notice the volume changing.VI. a. Set volume at 20. Wave the nail over the searchcoil. b. Press until DISC is highlighted on display.c. Press repeatedly, while continuing to wave the nail.The nail will be discriminated out. The Target-ID at which it is eliminateddepends on the size of the nail.VII. Wave each object over the searchcoil.Sweep coins flat and parallel to the searchcoil. This is howyou will usually find them buried.a. Notice the 2-digit Target-IDs for each object.b. Motion is required.Objects must be in motion over the searchcoil to bedetected in this mode.QUICK-START DEMONSTRATIONQuick-Start Demo continued on next pageF19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 8
932eMI is usually easier to control in the All Metals Mode than in the DiscriminationMode.On the F19™, setting the discrimination level between 20 and 30 will usuallyreduce interference. In the Discrimination Mode, the detector may chatter if thesearchcoil is not in motion, but once you start sweeping it over the ground, thesignal from the ground will usually suppress the eMI chatter, except for anoccasional pop or click which will not sound like a real target. If you are conducting an indoor demonstration, you may find that changing theorientation of the searchcoil will reduce the pickup of eMI. If you carry a cell phone or other high-tech electronic equipment while metaldetecting and you encounter eMI, try turning the device off and see if that solvesthe problem. Turn such devices completely off, not just into standby mode. When working near overhead power lines, you may get the best results right underthe power line and the worst results when standing at a 30° to 45° angle to thepower line. Many sources of e MI are intermittent. You may find that an area which is difficultto search at one time of day may be easier after 5 PM, or on weekends. Powerlines are usually quietest late at night, and on weekend mornings. Small searchcoils usually pick up less eMI than larger searchcoils. On a site withsevere electrical interference, a small searchcoil is often a better choice than alarge one.Distinguishing Electromagnetic Interference from other problemseMI will often vary as you walk around from place to place, and it will also vary withchanges in the orientation of the searchcoil. This is almost never the case if thereis a functional problem with the metal detector itself. The most common cause of a noisy metal detector, where the problem is not eMI,is a defective searchcoil. If striking the searchcoil with your hand causes the noiseto start or stop, the problem could be a defective searchcoil. Also, a defectivesearchcoil often causes noise of a more intermittent nature than electricalinterference.The second most common cause is a loose searchcoil connector. The noise froma loose connector will usually be very erratic or intermittent in nature. Tryunplugging the searchcoil and then reconnecting it to ensure the connector is firmlyinstalled.If you use a searchcoil cover, dirt or water can accumulate inside it, and movementof those materials can cause false signals while sweeping the searchcoil.Searchcoil covers must be periodically removed and cleaned.ELECTRICAL INTERFERENCE (EMI)IX. Click the MODE knob to the right. The detector is now in the ALL MeTAL Modea. Keep GAIN set at the 12:00 positionb. r otate the THr eSHOLD knob slowly from the far counterclockwiseposition to the full clockwise position.Notice these attributes of the THr eSHOLD control, with no metalover the searchcoil.i. at low settings you will hear no soundii. at mid-scale, there will be a transition point from no sound toa barely audible, choppy sound.iii. at full scale you will hear a loud, constant tone. It may also havean irregular or choppy sound, as a result of electromagneticinterference emitted from other electrical devices.USE WITH HEADPHONES (not included)The F19™ is equipped with a 1/4” headphone jack. Any headphones with a 1/4”stereo plug will work; headphones with a mono plug will not work. Usingheadphones extends battery life, and also prevents the sounds from botheringbystanders. It also allows you to hear subtle changes in the sound more clearly,particularly if searching in a noisy location. If gold prospecting, gold nuggets areoften very small, so closely monitoring changes in sound using headphones willimprove your gold prospecting results. For safety reasons, do not use headphonesnear traffic or where other dangers are present. This device is to be used withinterconnecting cables/headphone cables shorter than three meters (ten feet).VIII. Press-and-hold and hold the nickel over the searchcoila. Notice that motion is not required.A motionless object induces a hum.b. Notice the variable pitch & volume hum.c. Move the nickel closer to and farther away from the searchcoil. Notice the changing “depth” values. QUICK-START DEMONSTRATIONF19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 9
10 31ELECTROMAGNETIC INTERFERENCE (EMI)You are likely to encounter electromagnetic interference (eMI) when using your F19™metal detector. It is important that you recognize e MI and take appropriate measuresto deal with it. This will prevent you from giving up on a worthwhile search site, or fromreturning a properly functioning detector for repair. Symptoms of Electromagnetic InterferenceeMI can cause a metal detector to chatter spontaneously, to lose sensitivity for no apparentreason, or to cause a periodic wobbly audio sound. What you hear will depend on whatoperating mode you are using, the detector’s settings, and the source of the electricalinterference. The most common manifestation is spontaneous chatter.All metal detectors are susceptible to e MI, but they vary in what kinds of interferenceaffect them. In a given environment some metal detectors may be affected by eMIwhereas others may not. Common sources of Electromagnetic InterferenceCommon sources of eMI include: overhead electric power lines, underground power lines,other metal detectors, telephone lines carrying electronic data, computer systems, electricfences, old Cr T-based televisions, cell phones, CB and emergency communicationradios, thunderstorms, fluorescent lights, metal vapor lamps, military aircraft with electronicwarfare countermeasures turned on, electric motors, v LF military communications systemsand automobile ignition systems. At home, in a store, or in an urban environment, theremay be several different sources of interference present simultaneously.All metal detectors generate a certain amount of internal electronic noise. The F19™ isspecifically designed to enable you to work into the noise. experienced users, strivingfor maximum depth, often adjust the machine to search with a constant audiblebackground sound, and then listen through that noise for the sound of real targets. Stricter regulations in recent years have cut down on interference from electric lightdimmers and auto ignition systems. However there has also been a proliferation ofv LF-UHF wireless communication systems (cell phones, Bluetooth, Wi-Fi, etc.), whichoften affect metal detectors. Overall, the potential for electromagnetic interference isgreater than it was just a few years ago.Modern high-end metal detectors are a lot more sensitive than older units; this alsoincreases your detector’s vulnerability to eMI beyond what you may be accustomed towith an older detector. Metal detectors are by their nature designed to detect magneticfields, and electric current always produces magnetic fields.Coping with Electromagnetic InterferenceThe primary reason metal detectors provide a sensitivity (gain and/or threshold) control,is so that users can reduce sensitivity in order to eliminate response to electricalinterference. Some users are reluctant to reduce sensitivity out of fear of losing depth.At reduced sensitivity settings, you may lose some depth, but at least you can stillsearch. The Gain and Threshold knobs control the sensitivity and are your firstline of defense against EMI. The Threshold control only applies to the All Metal Mode.THE BASICS OF METAL DETECTINGA hobby metal detector is intended for locating buried metal objects. Whensearching for metals, underground or on the surface, you have the followingchallenges and objectives:1. Ignoring signals caused by ground minerals.2.Ignoring signals caused by metal objects that you do not want to find,such as pull-tabs.3. Identifying a buried metal object before you dig it up.4. e stimating the size and depth of objects to facilitate digging them up.5. e liminating the effects of electromagnetic interference from otherelectronic devices.Your F19™ metal detector is designed with these points in mind.1. Ground MineralsAll soils contain minerals. Signals from ground minerals can interfere withthe signals from metal objects you want to find. All soils differ, and candiffer greatly, in the type and amount of ground minerals present. Youtherefore want to calibrate the detector to the specific ground conditionswhere you are hunting. The detector incorporates both automated andmanual ground balancing features which will eliminate false signals frommost types of soils. To maximize the detector’s target identificationaccuracy and depth of detection, use the Gr OUND Gr AB®COMPUTer IZe D Gr OUND BALANCING function to calibrate thedetector to the ground where you are searching. See the section onGr OUND BALANCING for details.The Basics continued on next pageF19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 10
1130HOT ROCKSA hot rock is a rock which causes the metal detector to sound off because therock contains iron minerals. They come in two basic types.Negative hot rocks (also called cold rocks) are usually magnetite orcontain magnetite, and give a negative response because their groundbalance value is a higher number than the soil they are found in. Theytend to be dark in color, usually black, and usually heavy. In some casesthey will have rust stains. They are usually attracted to a magnet, and forthis reason gold prospectors always carry a magnet -- the ultimateferrous/nonferrous discriminator. In All Metal Mode, negative hot rocksproduce a boing sound rather than the zip sound of a metallic target;recognize the difference and you will learn to ignore them. As thesearchcoil passes over a hot rock, this boing sound, or negative response,is quite distinctive. To hear this response, you must be properly GroundBalanced and in All Metal Mode with an audible threshold hum. First, asthe center of the searchcoil passes over the negative hot rock, thedetector will go quite; the threshold hum momentarily silences. Then,passing beyond the negative hot rock, you hear the boing sound. As youpass the searchcoil back and forth over a negative hot rock, it will beimpossible to pinpoint and will seem as if it moves around.Positive hot rocks are iron-bearing rocks which have been oxidized bynatural weathering processes so that their GND BAL value is a numberlower than the soil they are found in. They are often small, right on thesurface, sound just like a gold nugget, and are common in many goldprospecting areas. They are usually, but not always, drawn to a magnet.They are most often reddish in color but are often black, brown, or yellow.On relic hunting sites, red clay bricks and rocks which have lined a fireplaceor a campfire will often be hot rocks. The discriminator will usually eliminatethem without difficulty if widely scattered, but if there is a large concentrationof them, the discriminator may not quiet them all. In that case, you canrevert to the rule of thumb -- “don’t dig non-repeatable signals.”r emember to always carry a magnet to help discriminate gold from hot rocksand iron.• Gold will not be attracted to a magnet.• Pieces of iron will always be attracted to a magnet.• Negative hot rocks will almost always be attracted to a magnet.• Positive hot rocks will usually be attracted to a magnet.2. TrashIf searching for coins, you want to ignore items like aluminum foil, nails andpull-tabs. These undesirable items are generally identified toward the lowerend of the 1-99 scale. You can listen to the sounds of all objects detected,and decide on what you want to dig up. Or you can eliminate unwantedmetals from detection by using the DISCr IMINATION feature.3. Identifying Buried ObjectsDifferent types of metals are classified along the arc at the top of the screenon a 1-99 scale from left to right. A 2-digit numerical reading is alsoprovided in the middle of the display for more precise target identification inDiscrimination Mode.4. Size and Depth of Buried ObjectsWhen using the detector in the motion DISC Mode, the relative depth of anobject is displayed to the left of the display over the SIGNAL strengthindicator. A more accurate depth reading is available using PINPOINT.Pinpoint displays estimated target depth, in inches. Pinpoint does notrequire the searchcoil to be in motion to detect metals. The ability to holdthe searchcoil motionless over the target also aids in tracing an outline ofthe buried object, or in pinpointing the exact location of the object usingtechniques described in the pinpointing section of this manual.5. Electromagnetic Interference (EMI)electromagnetic interference (eMI) can cause a metal detector to chatterspontaneously, to lose sensitivity for no apparent reason, or to cause aperiodic wobbly audio sound.  Common sources of eMI include powerlines, electronic communication equipment such as cellphones, fluorescentlamps, military electronics such as radar, other metal detectors andcomputer equipment.Your first line of defense against eMI is to reduce the Gain and/orThreshold. In areas with heavy eMI, operating at reduced sensitivity levelswill result in the loss of some depth, but at least the metal detector will beusable.See the section on eLeCTr OMAGNeTIC INTe r Fer e NCe for a morethorough explanation of eMI and how to manage it.THE BASICS OF METAL DETECTINGF19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 11
12 29OPERATION & CONTROLSVOLUMEV-BREAKNOTCH WIDTHDISCGND BALON/OFF/GAIN:• Click ON/OFF• In DISC Mode rotate to change GAIN (sensitivity) from 1 to 100• In ALL METAL Mode rotate to change GAIN from 5 to 100 in steps of 5• In DISC Mode press to cycle through menu options• In ALL METAL Mode press-and-hold while bobbing coil to set ground balancePress-and-hold toactivate PINPOINT feature In DISC Mode:Change setting of active menu option In ALL METAL Mode:Change Ground Balance setting from 0 to 99.9 MODE SELECTION/THRESHOLD CONTROL• Click left to operate in Discrimination Mode• Click to right to operate in ALL METAL Mode.• Rotate knob in ALL METAL Mode to change THRESHOLD from -40 to 40POWERING UPNOTE: Immediately after powering on, your detector's unique 10-digit serialnumber is displayed once on the LCD. Two digits are displayed at a time; five2-digit numbers are displayed in sequence. This 10-digit serial number is thesame serial number imprinted on the label inside the battery compartment.• Click the left knob clockwise to turn the detector ON.• After clicking the knob on, continued clockwise rotation will increase the“sensitivity” in DISC Mode or the “GAIN” in ALL Me TAL Mode.• We suggest keeping the GAIN below 70 until you become familiar withthe detector’s operation.Searching for coins and relics at Civil War or ghost town sites oftenmeans detecting in heavy concentrations of iron and dealing with crop-stubbleor forest ground clutter. The F19 can handle the toughest ground mineralization, capable ofground balancing all the way to salt. With its fast retune speed and biaxialsearchcoil, the F19 creates superb target separation with impressive depth.The 10” elliptical coil is ideal for working between brush, rocks and debriscommonly found at old abandoned sites. An expanded 40-point iron ID rangehelps differentiate between larger iron objects and smaller nails and pieces.With FeTone™adjustable iron audio, the volume level of ferrous targets canbe lowered separate from the volume level of non-ferrous targets, allowingdesired targets to be heard much easier. The fine-tune adjustable Notch Width can be used to target specificunwanted items, such as shell casings or bottle caps, and the enhancedv-Break®, our variable Tone Breakpoint, allows the user to further customizethe detector’s settings to get unique audio on specific Target-ID ranges.Combined, the Notch Width and v -Break features create endless variationsfor fine tuning the detector to meet exact hunting needs. An adjustable back-light on the display allows for hunting in low-lightconditions. RELIC HUNTINGF19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 12
1328GOLD PROSPECTINGGold Prospecting continued on next pageIn the United States, gold is commonly found in the westernstates, Alaska and in a few localities in the Appalachians.Hillsides are the best areas for gold prospectingusing a metal detector, because hillsides cannotbe cleaned out by panning and dredging theway streams can. Also, gold on hillsides,not far from its source vein, tends to belarger and more readily detected, thanalluvial (placer) gold, which tends toget pounded to pieces and wornaway as it rolls along thestreambed. even in a goodgold producing area,detectorists often spend anentire day without finding anygold, but will dig bits andpieces of other metal such asbirdshot, bullets and rusted tincans, etc. Another nuisance can be “Hot r ocks” - rocks containingconcentrations of iron oxides that sound like metal when passed over with thedetector. Discrimination is usually ineffective because the loss of sensitivityresulting from discrimination is enough to make the little nuggets invisible. Because most gold nuggets are tiny, and are usually found in soil which ishigh in iron oxide minerals, serious gold prospecting requires a detector withhigh sensitivity and true ground balanced All Metal operation. Set the detectorwith the sensitivity high enough to hear some noise from ground minerals, andlearn the language of the sounds you hear. Headphones are recommendedunless there are safety issues (for instance rattlesnakes). Move the searchcoilslowly and deliberately, carefully controlling its height above the ground tominimize noise from iron minerals in the soil. If you hear ground noise, theGround Balance setting could be off, so perform the ground balancingprocedure again. The ground geology typically associated with the presenceof gold will tend to change over very short distances.The Fe3O4 bar graph indicates the amount of iron mineralization in the soil. Inmost gold fields, especially alluvial deposits, gold tends to be associated withiron minerals, especially magnetite black sand. Therefore, to maximize goldrecovery, concentrate on areas where the bar graph indicates higher amountsof iron mineralization.CONTROL PANEL DISCGND BALCONTROL KNOBS:1. ON/OFF/GAINa. Click right to turn on. Click left to turn off.b. Turning the knob clockwise increases the detector’s sensitivity; thehigher the sensitivity, the deeper targets will be detected, and the morelikely the detector will be to detect very small targets.c. As you turn the knob, notice the GAIN value at the bottom-right of thescreen displays your current sensitivity setting.Sensitivity in DISC ModeThe left knob is labeled “GAIN” and in DISCr IMINATION Mode it alonecontrols the sensitivity of the detector. GAIN in ALL METAL ModeIn All Metal Mode, GAIN increases as you rotate the knob clockwise.THr e SHOLD is controlled independently using the right knob.2. DISC / ALL METAL / THRESHOLDa. Click knob to the far-left “DISC” position and the detector entersDISCr IMINATION Mode.b. Click on clockwise to operate in ALL MeTAL Mode. c. In ALL MeTAL Mode, rotate knob to change the threshold.Threshold values range from -40 to +40. In ALL Me TAL Mode, the Threshold control can be used in two ways. Control knobs continued on next pageF19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 13
14 27TARGET DISPLAY and AUDIOSIGNAL IndicatorThe lower-left bargraph designatesSIGNAL strength only when operating inDiscrimination Mode.The signal strength indicator at the bottom-left of the screen indicates how large orclose the buried metal target is.If all bars are illuminated, the target islarge or close to the searchcoil.If one or two bars are illuminated, thetarget is far away or small, or both.DEPTH IndicatorA target’s location and size can be verifiedusing the PINPOINT control.Press PinPoint to temporarily detect metalwithout searchcoil motion, and amonotone hum.While holding the PinPoint button, theDePTH indicator will appear.  Thenumber beneath DePTH represents thedistance of the object, in inches, from thesearchcoil. The Depth scale is calibratedto coin-sized objects. For objects otherthan a coin, the numeric value is a relativemeasure of the target’s depth.AUDIO FEEDBACKWhen a target is detected, the F19 willrespond with two types of sound:1. v.C.O. (voltage ControlledOscillator): an audio response withvariable pitch and volume.2. A LOW tone beep. In Discrimination Mode, targets which fallinto the zone along the arc whosesegments are shaded will be identifiedwith a LOW tone beep and those whosesegments are solid with v.C.O.As the user sets the discrimination levelwith the and buttons, he isdetermining which targets will beeliminated.All targets’ audio responses in All MetalMode will be v.C.O.V.C.O. (voltage Controlled Oscillator) isan audio response which provides a goodfeel for the target.The stronger the target signal, the higherthe volume and the higher the audio pitch.very weak signals will have the faintestvolume and lowest pitch.For this reason, the use of headphonesis always recommended for detecting thesmaller and deeper targets.2-DIGIT TARGET INDICATORIn Discrimination Mode the 2-digit targetindicator, in the middle of the screen,provides a specific target value to helpidentify buried targets more accurately.With practice in the field, you will learn toassociate target values with the probableidentification of buried objects. The targetvalue can vary each time the searchcoilpasses over the target, depending uponthe orientation of the object and itsdistance from the searchcoil.As a starting point, refer to the table below.TARGET ReadoutThe table below lists some commonapproximate target values. Withexperience in the field, you will recognizemany types of metal objects by theirnumeric value.OBJECTTARGET-IDfoil from gum wrapper 47 - 48U.S. nickel (5¢ coin) typically 58aluminum pull-tab 60 - 75aluminum screw cap 70 - 80zinc penny (dated after 1982) typically 78aluminum soda pop can 75 - 85copper penny, clad dime typically 83U.S. quarter (25¢ coin), clad typically 8550¢ coin, modern clad typically 87old silver dollar coin typically 89 US silver eagle $1 coin typically 91Caution: The target indications arevisual references. Many other types ofmetal can also be represented by a givenTarget-IDCONTROL PANELGAIN versus THRESHOLD“Gain” increases, or multiplies, the strength of signals from buried metal objects.For maximum detection of the smallest or most deeply buried objects, increasethe Gain. To minimize the weakest signals, reduce the Gain.“Threshold” controls the detector’s audio level. Positive threshold valuesincreases the audio response of weak target signals. Negative thresholdvalues suppress sensitivity.For searching at maximum sensitivity, first set the Gain at a low level. Thenset threshold into the positive region, with a comfortable background-humvolume level. Then increase Gain to a comfortable level, free of chatter.Increase Gain to a slight amount of chatter if you can tolerate the chatterwhile searching.For silent searching, set threshold to a negative number, and also reduceGain if necessary. Silent searching will result in the loss of some sensitivity.TOUCHPAD CONTROLS1. MENU / GGThis button has a dual function, depending on the detection mode.a. In DISC Mode, this control cycles through menu options. The active menuoption appears in bold on the display.The menu times-out after 3 seconds. b.In ALL Me TAL Mode, press-and-hold the button to activate Gr OUND Gr AB®. Ground Grab®allows you to set the detector’s internal ground setting equalto the phase of the ground you are searching over. See the section onGround Balancing for a more thorough explanation of this feature and thereason for using it.2. anda. In Discrimination Mode, and change the setting of the active menuoption.b. In All Metal Mode, and provide a manual override to the GroundBalance Setting.3. PINPOINTPress-and-hold to activate the Pinpoint feature.Pinpoint temporarily engages a no-motion detection mode. Searchcoilmotion is not necessary to detect metal. Any metal within the searchcoil’sdetection field will induce a sound. Pinpoint is generally used to determinethe exact location of a target previously detected in Discrimination Mode. F19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 14
26 15GROUND BALANCING -Technical InfoFe3O4BARGRAPH The Fe3O47-segment bar graph indicates the amount of ground mineralization,independent of type, expressed as an equivalent volume concentration ofmagnetite (Fe3O4).  It updates every second.  It is sensitive to motion and will givethe most accurate readings if you pump the searchcoil up and down several timesover the ground. The presence of metal or “hot rocks” will cause the readings to beinaccurate. If you stop moving the searchcoil, the bar graph will go blank.INDICATION RELATIVE % Fe3O4SUSCEPTIBILITYMINERALIZATION7 Bars High over 1 over 2,5002 to 6 Bars Medium .026 - 1.0 61 - 2,5001 Bar very Low 0.006 - .025 15 - 60None -- less than .006 less than 15Magnetic susceptibility is expressed in micro-cgs units.  In a saltwater environmentin the absence of iron minerals, the bar graph indicates relative electrical conductivity.In soils with greater than 10,000 micro-cgs units of magnetic susceptibility, thesignal from the soil may saturate, or overload, the circuitry. This will not harmthe detector but the machine will not be usable in that condition. The solutionis to hold the searchcoil several inches above the soil surface so it is not “seeingas much dirt.” By listening and watching you will know how high you need tohold the searchcoil in order to avoid overload.The highest magnetic susceptibilities are usually found in soils developed overigneous rocks, in alluvial black sand streaks on beaches and in red clay soils ofhumid climates.The lowest magnetic susceptibilities are usually found in white beach sands oftropical and subtropical regions, and soils developed over limestone.OPERATING IN ALL METAL MODEThe All Metal Mode is more sensitive than the Discrimination Mode, and is used tofind all types of metal objects in the ground. The searchcoil must be in motion forobjects to be detected. Ground Grab®COMPUTERIZED GROUND BALANCINGNaturally occurring minerals in soil look like metal to a metal detector, so you want tocancel out this mineral signal coming from the ground, and only detect the signal frommetal objects in the ground.So before using your detector, set it in All Metal Mode and perform the automaticground balancing procedure. Press-and-hold the GG®COMPUTERIZED GROUNDBALANCING button while pumping the searchcoil up and down over the ground.r elease the button when the sound evens out. The GND BAL number on the bottomright of the screen is the detector’s internal setting which cancels out the minerals inthe ground. Different soils in different areas will require different GND BAL settings,so balance to ground before you search.Refer to the Ground Balancing section of this manual for a more in-depth explanation.Setting the ControlsAs you adjust any of the controls, notice that the values on the bottom-right of thedisplay indicate the settings of the value you are changing.If you are new to metal detecting, start with the GAIN and THr eSHOLD controls at alow enough setting that you do not hear too many unwanted sounds, like warble or aloud hum. Set the GAIN at the 12:00 position, or less. Then set the THr eSHOLD to aposition where you hear a very slight background hum, or if you prefer, position theknob just left of that position to a setting where the detector is silent.Unwanted Noiser ead the section on electromagnetic Interference.The F19™ is a highly sensitive device.It is intended for use outdoors. Indoor operation will subject it to interference from awide variety of devices in the home or office.Sweeping the SearchcoilAs you sweep the searchcoil over the ground, try to keep the searchcoil parallel to theground.Avoid lifting the searchcoil at the end of your sweeps.Operating in All Metal Mode continued on next pageF19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 15
16 25The goal of the Ground Balancing procedure is to eliminate the sound as thesearchcoil is being pumped over the ground. In some soils, the sound is notcompletely eliminated.After balancing to ground with Ground Grab®COMPUTer IZeD Gr OUNDBALANCING (GG) some users may want to further adjust the ground balancesetting manually.To manually adjust ground balance:1. Operate in ALL MeTAL Mode.2. Pump searchcoil up and down over the ground as in the COMPUTer IZeDGr OUND BALANCING procedure.3. Press or while pumpingIf the ground balance adjustment is incorrect, there will be a difference in thesound as the searchcoil is either moving toward or away from the ground. Itsounds like you are either pulling the sound out of the ground, or pushing thesound into the ground.•If the sound is louder as you raise the searchcoil, increase the groundbalance setting.•If the sound is louder as you lower the searchcoil, reduce the ground balancesetting.NOTe: e xperienced users often prefer to adjust the ground balance to get a weakbut audible response when lowering the searchcoil. This is called adjusting forpositive response. POSITIVE AND NEGATIVE RESPONSE The purpose of ground balancing is to adjust the metal detector to ignore groundminerals. If the setting is incorrect, ground minerals will give either a positive or anegative response, depending on which direction the adjustment is off.Positive ResponseIf the GND BAL setting is too high a number, the response of minerals will bepositive. This means that when the searchcoil is lowered to the ground inPinPoint or All Metal Mode, the sound will get louder as the searchcoilapproaches the ground. The sound will grow quieter as the searchcoil is raised.What, if anything, you will hear in Discrimination Mode depends on thediscrimination setting.When searching in an All Metal Mode, if ground balance is properly set to cancelthe ground, and you sweep over a positive hot rock, the rock will give a “zip”sound similar to that of a metal object. Negative ResponseIf the GND BAL setting is too low a number, the response of minerals will benegative. When the searchcoil is lowered to the ground in PinPoint or All MetalMode, the machine will be silent. The machine will sound off as the searchcoil islifted away from the ground. What, if anything, you hear in Discrimination Modedepends on the Discrimination setting.When searching in All Metal Mode a negative hot rock will produce a “boing”sound after passing over it, making it difficult to know where it is located. It willnot have the sound and “feel” of a metal object.GROUND BALANCING Reading the DisplayMost gold prospecting and relic hunting is done by ear. Listen for the louder sounds,riding on top of the constant background hum. As you sweep the searchcoil, notice the Fe3O4(iron oxide) scale to the left of thedisplay.This indicates the amount of ground mineralization.Most black sand is made of magnetite.Gold nuggets are often found in concentrated black sand deposits.For the best depth detection in highly mineralized soils, use the All Metal Mode.For the most accurate Fe3O4reading, pump the searchcoil over the ground.While sweeping the searchcoil, also notice the GND PHASE value in the middle of thescreen.GND PHASe is the ground phase; this indicates the type of minerals in the soil.Within an area, the ground phase may change.After ground balancing, periodically compare GND PHASe to GND BAL. If these twonumbers differ by a great deal, you may want to ground balance the detector again.When not adjusting the knobs, the GND BAL setting will always appear on thebottom-right of the display.GND BAL is the detector’s internal ground balance setting. The detector’s defaultground balance setting is 82.9, which is the best starting point for achieving thecorrect setting. After you perform the Ground Grab®procedure, the GND BAL number will changeto match your soil.You can change the current GND BAL setting by pressing the or buttons.See section on Ground Balancing for a more detailed explanation.experienced users often prefer to adjust the ground balance to get a weakaudible response when lowering the searchcoil to the ground. This is calledadjusting for positive response and is achieved by increasing the GND BALnumber with the key.Target ScaleThe arc across the top classifies metal objects.each time a target is detected, three segments will illuminate above the arc.The segments will remain illuminated for three seconds.This indication shows the approximate classification of the buried metal object.See the section on Target Display for a more detailed explanation.Iron is on the left. U.S. dimes and quarters are to the far right.When relic hunting, any Target-ID greater than 40 is a potential non-ferrous relic.In an air test, gold indicates right of center -- the larger the gold piece, thefarther to the right. In the ground, the ID of gold may jump around with each pass of the searchcoil.If searching in All Metal Mode, you may want to switch back into Discrimination Mode,after finding a target. r eview the 2-digit Target-ID provided in the Discrimination Modefor a more precise target identification.OPERATING IN ALL METAL MODEF19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 16
24 17Understanding ground conditions assists the user in setting up the machine,knowing when to readjust ground balance, and in understanding the responsesof the machine while searching.This detector displays two kinds of ground data:1. The type of mineralization (which affects where the ground phase shouldbe set). This is GND PHASE2. The amount of mineralization (the greater the amount of mineralization,the greater the loss of detection depth & ID accuracy; this loss is morepronounced in Discrimination Mode). This is Fe3O4. The goal of ground balancing is to equate the GND BAL number to thePHASe number.PHASe is the measurement of the ground.GND BAL is the detector’s internal setting which calibrates the detectorto the ground’s phase.Notice that the GND BAL number is three digits, with a decimal point.PHASe has only two digits.GND BAL is a higher resolution number, so may differ a bit from PHASein a perfectly balanced scenario.After pumping and releasing Ground Grab®COMPUTer IZeD Gr OUNDBALANCING (GG), the exact measurement of the ground will betransferred to the GND BAL setting.The two-digit PHASe number displayed on the screen indicates the type ofground mineralization. Some typical ground mineralization types are:0 – 10 Wet salt and alkali5 – 25Metallic iron. very few soils in this range. You are probably over metal.26–39 v ery few soils in this range -- occasionally some saltwater beaches40–75 r ed, yellow and brown iron-bearing clay minerals75–95 Magnetite and other black iron minerals96–99 values over 95 are generally an indication of a searchcoil orelectronics defect or out-of-calibration condition.Ground Balancing continued on next pageGROUND BALANCING OPERATING IN DISCRIMINATION MODE Discrimination is used to eliminate trash metal objects (e.g. nails, foil, pull-tabs) fromdetection. The searchcoil must be in motion to detect metal. The Discrimination Modeis less sensitive to small and deep objects than the All Metal Mode.Ground Grab®COMPUTERIZED GROUND BALANCINGThis feature is not available in Discrimination Mode.Your best results will be achieved by first performing the COMPUTer IZeD Gr OUNDBALANCING procedure in All Metal Mode.The ground balance setting achieved using COMPUTer IZeD Gr OUND BALANCINGwill carry over into this mode.Setting the ControlsAs you adjust any of the controls, notice that the values on the bottom-right of thedisplay indicate the settings of the value you are changing.GAINIf you are new to metal detecting, start with the GAIN at a low enough setting that you do nothear any sounds when the searchcoil is sweeping across the ground, with no metal present.Start with GAIN at the 12:00 position, or less. In this mode, Gain refers to the detector’s sensitivity. The higher the setting, the deeperobjects can be found, and the more sensitive the detector is to very small metal objects.MODEThe right knob is not used in the Discrimination Mode.Click the right knob 100% counterclockwise.If you turn the knob to the right, you will leave Discrimination Mode, entering All Metal Mode.MENUThe Menu is located on the right side of the screen. During Discriminationoperation the Menu is inactive; during All Metal operation, Menu is not available.Use to select a Menu option. Use and to modify the setting of the selected Menu option.and change the menu settings. When the menu is not visible, and change the DISC setting; it is not necessary to access the menu tochange DISC during operation.Menu options are:Backlight Available setting from 0 to 5. This option controls the brightness of thedisplay backlight. When the backlight is on, is illuminated. In daylight,the backlight can be turned on but will not be visible, draining the batteries.So be sure is not illuminated if backlight illumination is not required.Operating in Discrimination Mode continued on next pageF19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 17
2318Table describes ferrous and nonferrous volume at each settingVolume VolumeSetting Nonferrous Ferrous Setting Nonferrous Ferrous11 1 11 10 122 2 12 10 233 3 13 10 344 4 14 10 455 5 15 10 566 6 16 10 677 7 17 10 788 8 18 10 899 9 19 10 910 10 0 20 10 10GROUND BALANCINGWhat is Ground Balancing? Why do I need to Ground Balance?All soils contain minerals. Signals from ground minerals areoften tens or hundreds of times stronger than a buried metal object.The magnetism of iron minerals, found in nearly all soils, causes onetype of interfering signal. Dissolved mineral salts, found in some soilsare electrically conductive, causing another type of interfering signal.The mathematical term for describing these differences is Phase.Phase varies with the types of minerals present in thesoil.Ground Balancing is the process by which the metaldetector cancels the unwanted signals coming from theground minerals while still detecting the signals fromburied metal objects. This is accomplished bymatching the detector’s ground balance setting tothe phase of the ground signal.When the detector is calibrated to the soil, theresult will be deeper target detection, quieteroperation, and more accurate target identification.How to Ground Balance your detector:Ground Balancing procedure with the Ground Grab®COMPUTer IZeD Gr OUNDBALANCING (GG) touchpad.1. Turn the detector on and set GAIN at the 12:00 position.2. Click on the right knob to the ALL MeTAL Mode. 3. r otate the THr eSHOLD control knob to the point where you hear a slightbackground hum.4. Sweep searchcoil across the ground to find a clear patch of ground with nometal present.5. Press and hold the Ground Grab®COMPUTer IZe D Gr OUND BALANCING(GG) touch pad, and pump searchcoil over the clean ground. See illustrationabove.Pump searchcoil from within 1” of ground to 6”- 8” above ground.6. When the GND PHASe settles down to only 1 or 2 numbers in variation,release the GND Gr AB button while still pumping the searchcoil. Note thatthe audio response to the ground changed and “evened Out” when youreleased the button. Also note that the GND BAL value changed. Afterbalancing, you can hunt in ALL MeTAL... or return to Disc Mode.The most accurate GND PHASe value is the value displayed when “pumping” thesearchcoil over the ground in an area free of metal.Ground Balancing continued on next pagePumping coilto groundbalance withCOMPUTER-IZEDGROUNDBALANCINGbutton.OPERATING IN DISCRIMINATION MODEVolume Use or to adjust the volume setting when the v OLUMe menuoption is highlighted. The default volume setting is 7.Press to increase speaker volume. Maximum volume is at setting 20.Press to lower speaker volume. The minimum volume setting is 0, no sound.With volume set to 0, the Target-ID and Depth Bar Graph will function asnormal, but the detector will not emit a sound when targets are detected.The overload volume signal will always sound off in the event of signaloverload, even with the volume set to 0.Because the F19™ is so sensitive to even the smallest iron targets, thedetector incorporates FeTone™, Adjustable Iron Audio, a feature to reducethe volume of iron targets to minimize user fatigue.volume settings 10 - 20 are available to control the volume level of irontargets.As you increase volume from 10 to 20, iron-volume changes from silentto maximum. Note that, depending on the v-Br e AK®setting, iron targetsmay induce v.C.O. tones; in this case, the v.C.O. tones in the iron range(ID 1 - 39) will also have the same reduced volume.At each of the 10 - 20 volume settings, nonferrous target response ismaximum volume.volume control applies only to motion target detection.volume changes do not affect Pinpoint volume. Setting Memory:When detector is powered OFF settings are saved, except for the ground setting and backlightlevel.When detector powers ON, ground is preset to 82.9 and backlight is always OFF.How to preset to factory default settings (if desired).• Power detector OFF.• Set right knob to DISC.• Press-and-hold .• Turn ON while holding .• The menu options will flash.• r elease ; detector turns on and all settings are restored to the factory defaults.Operating in Discrimination Mode continued on next pageF19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 18
1922When a target is detected, the rectangular segments representing the targetcategory are illuminated.Here is an example of one possible discrimination setting:DISC = 20v-Br eAK = 50NOTCH not setThis discrimination interface for the F19™ was designed especially for relic-hunting.r elic hunters want control over what sizes of iron are detected, and also controlover which targets are detected with a low-tone. Target values of 39 or less areferrous.This valueand lowerwill not bedetectedValues lessthan 21 willNOT BEDETECTEDValues from 21 to 50will induce a LOW toneValues from 51 to 99will induce V.C.O. tonesOPERATING IN DISCRIMINATION MODESuggestion: Try changing thesettings, watch the screen, andpass objects over the searchcoil ateach setting. It will quickly becomeobvious how these controls work.OPERATING IN DISCRIMINATION MODEOperating in Discrimination Mode continued on next pageV-Break (Change audio for certain targets)v-Break is a feature that allows the user to change the audio response ofcertain targets. v-Break allows the user to program the detector so that anytarget with an ID in the range of 0 - 80 can induce a LOW tone. examples:The user sets v-Break to a desired setting (e.g. 42).every target with ID less than or equal to 42 induces a low tone.The audio response of targets with IDs greater than 42 are not changed.v-Break can be set only for Target-IDs that have not previously been rejectedusing the discrimination or notch functions.Notch WidthAs you press or when adjusting the Notch Width setting, the blankarea you see across the Conductivity Arc represents targets that will not bedetected. This blank area is the “notch-window.” Notch Width allows you to set the size (or width) of this notch-window, whichcan be used to “notch out” or “notch in” targets from detection; themaximum width of the notch-window is 20.NotchAfter setting the width of the notch-window, it can be moved around usingNOTCH. The setting you adjust corresponds to the left-most edge of thenotch-window. DiscAvailable settings from 0-80. All targets with ID's less than or equal to theDisc setting are eliminated from detection. For example, if Disc is set to 39,all targets with an ID of 39 or less will not be detected. By design, thedetector does not allow highly conductive targets (like silver) to bediscriminated out.Press to eliminate unwanted metals from detection.each time you press the Disc value at the bottom-right of the display willincrement by one.Press-and-hold to increase the Discrimination level rapidly.See the Target Identification section of the manual for a detailed description ofthis function.Sections of the arc with no indication represent metals completely eliminatedfrom detection.Press to detect metals which were previously eliminated fromdetectionF19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 19
2120In Discrimination Mode, when menu is not displayed, pressing or willchange the discrimination setting. As the level of discrimination changes, the target segments along the arc on thescreen will be displayed in one of two states:1. Blank (no segments displayed)2. Black (segments are solid black)The segments along the arc will remain illuminated in this state as you arepressingor . This displays your chosen target discrimination parameter.At any time during operation, you can view the discrimination settings in one oftwo ways:1. On the bottom-right of the screen the DISC value is always illuminated.All Target-IDs less than or equal to the value displayed will not bedetected.2. Whenever you press or , the arc will illuminate and show yourcurrent detection parameters.The first press of or will change the discrimination level by onevalue.Discrimination Control continued on next pageOPERATING IN DISCRIMINATION MODEOPERATING IN DISCRIMINATION MODEUnwanted Noiser ead the section on electromagnetic Interference.This is a highly sensitive device.It is intended for use outdoors. Indoor operation will subject it to electrical interferencefrom a wide variety of devices in the home or office.In Discrimination Mode, when you sweep the coil over the ground it will usually be quieterthan when holding the detector still.Sweeping the SearchcoilAs you sweep the searchcoil over the ground, try to keep the coil parallel to the ground.Avoid lifting the searchcoil at the end of your sweeps.Using PINPOINTPress-and-Hold the Pinpoint button to narrow down the location of a buried metal object.Pinpoint does not require the searchcoil to be in motion.A motionless searchcoil held over a metal object will induce a hum; volume andpitch of the hum increase with target strength.The approximate target depth, in inches, will be indicated in the center of the screen.The depth scale is calibrated to coin-sized objects.r elative depth is indicated for larger or smaller objects.Upon releasing the button, you will return to a motion detection mode.If you keep the Pinpoint button depressed for a long time, the audio tone may begin to drift.If you plan to search like this, release and re-press the button periodically to avoiddrift. Drift may result in a loudening sound or a reduced sensitivity with no sound.See the manual section on Target Pinpointing for how to narrow down a target’s location.This technique is indispensable as long-buried metals can look exactly like thesurrounding soil to the naked eye. If you are not adept at pinpointing, digging up andretrieving a small metal object can be very frustrating. So learn how to narrow-it-down.READING THE DISPLAYTARGET-IDeach time you pass the searchcoil over a metal object, a 2-digit value will appear inthe center of the display. See the manual section on Target Identification for a betterunderstanding of these values.Three segments will simultaneously appear above the arc at the top of the screen.This represents the same Target Identification, but displayed graphically on the scale.Target ScaleThis display works as in the All Metal Mode.The arc across the top classifies metal objects.each time a target is detected three segments will illuminate above the arc.The segments will remain illuminated for three seconds.This indication shows the approximate classification of the buried metal object.See the section on Target Display for a more detailed explanation.Iron is on the left. U.S. dimes and quarters are to the far right.In an air test, gold indicates right of center -- the larger the gold piece, thefarther to the right. In the ground, the ID of gold may jump around with each pass of the coilbecause of interference from iron minerals in the ground.SIGNALeach time a target is detected, bars will illuminate on the bottom left showingthe strength of the target’s signal.If all 7 bars illuminate, the target signal is strong.This may be a large metal object. Or it may be a coin-sized metal object close to the surface.If only a few bars illuminate, the target signal is weak.This may be a deeply buried object, even a big one.Or it may be a very, very small metal object, close to the surface.The depth of a coin-sized object can be confirmed using Pinpoint.F19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 20
2120In Discrimination Mode, when menu is not displayed, pressing or willchange the discrimination setting. As the level of discrimination changes, the target segments along the arc on thescreen will be displayed in one of two states:1. Blank (no segments displayed)2. Black (segments are solid black)The segments along the arc will remain illuminated in this state as you arepressingor . This displays your chosen target discrimination parameter.At any time during operation, you can view the discrimination settings in one oftwo ways:1. On the bottom-right of the screen the DISC value is always illuminated.All Target-IDs less than or equal to the value displayed will not bedetected.2. Whenever you press or , the arc will illuminate and show yourcurrent detection parameters.The first press of or will change the discrimination level by onevalue.Discrimination Control continued on next pageOPERATING IN DISCRIMINATION MODEOPERATING IN DISCRIMINATION MODEUnwanted Noiser ead the section on electromagnetic Interference.This is a highly sensitive device.It is intended for use outdoors. Indoor operation will subject it to electrical interferencefrom a wide variety of devices in the home or office.In Discrimination Mode, when you sweep the coil over the ground it will usually be quieterthan when holding the detector still.Sweeping the SearchcoilAs you sweep the searchcoil over the ground, try to keep the coil parallel to the ground.Avoid lifting the searchcoil at the end of your sweeps.Using PINPOINTPress-and-Hold the Pinpoint button to narrow down the location of a buried metal object.Pinpoint does not require the searchcoil to be in motion.A motionless searchcoil held over a metal object will induce a hum; volume andpitch of the hum increase with target strength.The approximate target depth, in inches, will be indicated in the center of the screen.The depth scale is calibrated to coin-sized objects.r elative depth is indicated for larger or smaller objects.Upon releasing the button, you will return to a motion detection mode.If you keep the Pinpoint button depressed for a long time, the audio tone may begin to drift.If you plan to search like this, release and re-press the button periodically to avoiddrift. Drift may result in a loudening sound or a reduced sensitivity with no sound.See the manual section on Target Pinpointing for how to narrow down a target’s location.This technique is indispensable as long-buried metals can look exactly like thesurrounding soil to the naked eye. If you are not adept at pinpointing, digging up andretrieving a small metal object can be very frustrating. So learn how to narrow-it-down.READING THE DISPLAYTARGET-IDeach time you pass the searchcoil over a metal object, a 2-digit value will appear inthe center of the display. See the manual section on Target Identification for a betterunderstanding of these values.Three segments will simultaneously appear above the arc at the top of the screen.This represents the same Target Identification, but displayed graphically on the scale.Target ScaleThis display works as in the All Metal Mode.The arc across the top classifies metal objects.each time a target is detected three segments will illuminate above the arc.The segments will remain illuminated for three seconds.This indication shows the approximate classification of the buried metal object.See the section on Target Display for a more detailed explanation.Iron is on the left. U.S. dimes and quarters are to the far right.In an air test, gold indicates right of center -- the larger the gold piece, thefarther to the right. In the ground, the ID of gold may jump around with each pass of the coilbecause of interference from iron minerals in the ground.SIGNALeach time a target is detected, bars will illuminate on the bottom left showingthe strength of the target’s signal.If all 7 bars illuminate, the target signal is strong.This may be a large metal object. Or it may be a coin-sized metal object close to the surface.If only a few bars illuminate, the target signal is weak.This may be a deeply buried object, even a big one.Or it may be a very, very small metal object, close to the surface.The depth of a coin-sized object can be confirmed using Pinpoint.F19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 20
1922When a target is detected, the rectangular segments representing the targetcategory are illuminated.Here is an example of one possible discrimination setting:DISC = 20v-Br eAK = 50NOTCH not setThis discrimination interface for the F19™ was designed especially for relic-hunting.r elic hunters want control over what sizes of iron are detected, and also controlover which targets are detected with a low-tone. Target values of 39 or less areferrous.This valueand lowerwill not bedetectedValues lessthan 21 willNOT BEDETECTEDValues from 21 to 50will induce a LOW toneValues from 51 to 99will induce V.C.O. tonesOPERATING IN DISCRIMINATION MODESuggestion: Try changing thesettings, watch the screen, andpass objects over the searchcoil ateach setting. It will quickly becomeobvious how these controls work.OPERATING IN DISCRIMINATION MODEOperating in Discrimination Mode continued on next pageV-Break (Change audio for certain targets)v-Break is a feature that allows the user to change the audio response ofcertain targets. v-Break allows the user to program the detector so that anytarget with an ID in the range of 0 - 80 can induce a LOW tone. examples:The user sets v-Break to a desired setting (e.g. 42).every target with ID less than or equal to 42 induces a low tone.The audio response of targets with IDs greater than 42 are not changed.v-Break can be set only for Target-IDs that have not previously been rejectedusing the discrimination or notch functions.Notch WidthAs you press or when adjusting the Notch Width setting, the blankarea you see across the Conductivity Arc represents targets that will not bedetected. This blank area is the “notch-window.” Notch Width allows you to set the size (or width) of this notch-window, whichcan be used to “notch out” or “notch in” targets from detection; themaximum width of the notch-window is 20.NotchAfter setting the width of the notch-window, it can be moved around usingNOTCH. The setting you adjust corresponds to the left-most edge of thenotch-window. DiscAvailable settings from 0-80. All targets with ID's less than or equal to theDisc setting are eliminated from detection. For example, if Disc is set to 39,all targets with an ID of 39 or less will not be detected. By design, thedetector does not allow highly conductive targets (like silver) to bediscriminated out.Press to eliminate unwanted metals from detection.each time you press the Disc value at the bottom-right of the display willincrement by one.Press-and-hold to increase the Discrimination level rapidly.See the Target Identification section of the manual for a detailed description ofthis function.Sections of the arc with no indication represent metals completely eliminatedfrom detection.Press to detect metals which were previously eliminated fromdetectionF19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 19
2318Table describes ferrous and nonferrous volume at each settingVolume VolumeSetting Nonferrous Ferrous Setting Nonferrous Ferrous11 1 11 10 122 2 12 10 233 3 13 10 344 4 14 10 455 5 15 10 566 6 16 10 677 7 17 10 788 8 18 10 899 9 19 10 910 10 0 20 10 10GROUND BALANCINGWhat is Ground Balancing? Why do I need to Ground Balance?All soils contain minerals. Signals from ground minerals areoften tens or hundreds of times stronger than a buried metal object.The magnetism of iron minerals, found in nearly all soils, causes onetype of interfering signal. Dissolved mineral salts, found in some soilsare electrically conductive, causing another type of interfering signal.The mathematical term for describing these differences is Phase.Phase varies with the types of minerals present in thesoil.Ground Balancing is the process by which the metaldetector cancels the unwanted signals coming from theground minerals while still detecting the signals fromburied metal objects. This is accomplished bymatching the detector’s ground balance setting tothe phase of the ground signal.When the detector is calibrated to the soil, theresult will be deeper target detection, quieteroperation, and more accurate target identification.How to Ground Balance your detector:Ground Balancing procedure with the Ground Grab®COMPUTer IZeD Gr OUNDBALANCING (GG) touchpad.1. Turn the detector on and set GAIN at the 12:00 position.2. Click on the right knob to the ALL MeTAL Mode. 3. r otate the THr eSHOLD control knob to the point where you hear a slightbackground hum.4. Sweep searchcoil across the ground to find a clear patch of ground with nometal present.5. Press and hold the Ground Grab®COMPUTer IZe D Gr OUND BALANCING(GG) touch pad, and pump searchcoil over the clean ground. See illustrationabove.Pump searchcoil from within 1” of ground to 6”- 8” above ground.6. When the GND PHASe settles down to only 1 or 2 numbers in variation,release the GND Gr AB button while still pumping the searchcoil. Note thatthe audio response to the ground changed and “evened Out” when youreleased the button. Also note that the GND BAL value changed. Afterbalancing, you can hunt in ALL MeTAL... or return to Disc Mode.The most accurate GND PHASe value is the value displayed when “pumping” thesearchcoil over the ground in an area free of metal.Ground Balancing continued on next pagePumping coilto groundbalance withCOMPUTER-IZEDGROUNDBALANCINGbutton.OPERATING IN DISCRIMINATION MODEVolume Use or to adjust the volume setting when the v OLUMe menuoption is highlighted. The default volume setting is 7.Press to increase speaker volume. Maximum volume is at setting 20.Press to lower speaker volume. The minimum volume setting is 0, no sound.With volume set to 0, the Target-ID and Depth Bar Graph will function asnormal, but the detector will not emit a sound when targets are detected.The overload volume signal will always sound off in the event of signaloverload, even with the volume set to 0.Because the F19™ is so sensitive to even the smallest iron targets, thedetector incorporates FeTone™, Adjustable Iron Audio, a feature to reducethe volume of iron targets to minimize user fatigue.volume settings 10 - 20 are available to control the volume level of irontargets.As you increase volume from 10 to 20, iron-volume changes from silentto maximum. Note that, depending on the v-Br e AK®setting, iron targetsmay induce v.C.O. tones; in this case, the v.C.O. tones in the iron range(ID 1 - 39) will also have the same reduced volume.At each of the 10 - 20 volume settings, nonferrous target response ismaximum volume.volume control applies only to motion target detection.volume changes do not affect Pinpoint volume. Setting Memory:When detector is powered OFF settings are saved, except for the ground setting and backlightlevel.When detector powers ON, ground is preset to 82.9 and backlight is always OFF.How to preset to factory default settings (if desired).• Power detector OFF.• Set right knob to DISC.• Press-and-hold .• Turn ON while holding .• The menu options will flash.• r elease ; detector turns on and all settings are restored to the factory defaults.Operating in Discrimination Mode continued on next pageF19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 18
24 17Understanding ground conditions assists the user in setting up the machine,knowing when to readjust ground balance, and in understanding the responsesof the machine while searching.This detector displays two kinds of ground data:1. The type of mineralization (which affects where the ground phase shouldbe set). This is GND PHASE2. The amount of mineralization (the greater the amount of mineralization,the greater the loss of detection depth & ID accuracy; this loss is morepronounced in Discrimination Mode). This is Fe3O4. The goal of ground balancing is to equate the GND BAL number to thePHASe number.PHASe is the measurement of the ground.GND BAL is the detector’s internal setting which calibrates the detectorto the ground’s phase.Notice that the GND BAL number is three digits, with a decimal point.PHASe has only two digits.GND BAL is a higher resolution number, so may differ a bit from PHASein a perfectly balanced scenario.After pumping and releasing Ground Grab®COMPUTer IZeD Gr OUNDBALANCING (GG), the exact measurement of the ground will betransferred to the GND BAL setting.The two-digit PHASe number displayed on the screen indicates the type ofground mineralization. Some typical ground mineralization types are:0 – 10 Wet salt and alkali5 – 25Metallic iron. very few soils in this range. You are probably over metal.26–39 v ery few soils in this range -- occasionally some saltwater beaches40–75 r ed, yellow and brown iron-bearing clay minerals75–95 Magnetite and other black iron minerals96–99 values over 95 are generally an indication of a searchcoil orelectronics defect or out-of-calibration condition.Ground Balancing continued on next pageGROUND BALANCING OPERATING IN DISCRIMINATION MODE Discrimination is used to eliminate trash metal objects (e.g. nails, foil, pull-tabs) fromdetection. The searchcoil must be in motion to detect metal. The Discrimination Modeis less sensitive to small and deep objects than the All Metal Mode.Ground Grab®COMPUTERIZED GROUND BALANCINGThis feature is not available in Discrimination Mode.Your best results will be achieved by first performing the COMPUTer IZeD Gr OUNDBALANCING procedure in All Metal Mode.The ground balance setting achieved using COMPUTer IZeD Gr OUND BALANCINGwill carry over into this mode.Setting the ControlsAs you adjust any of the controls, notice that the values on the bottom-right of thedisplay indicate the settings of the value you are changing.GAINIf you are new to metal detecting, start with the GAIN at a low enough setting that you do nothear any sounds when the searchcoil is sweeping across the ground, with no metal present.Start with GAIN at the 12:00 position, or less. In this mode, Gain refers to the detector’s sensitivity. The higher the setting, the deeperobjects can be found, and the more sensitive the detector is to very small metal objects.MODEThe right knob is not used in the Discrimination Mode.Click the right knob 100% counterclockwise.If you turn the knob to the right, you will leave Discrimination Mode, entering All Metal Mode.MENUThe Menu is located on the right side of the screen. During Discriminationoperation the Menu is inactive; during All Metal operation, Menu is not available.Use to select a Menu option. Use and to modify the setting of the selected Menu option.and change the menu settings. When the menu is not visible, and change the DISC setting; it is not necessary to access the menu tochange DISC during operation.Menu options are:Backlight Available setting from 0 to 5. This option controls the brightness of thedisplay backlight. When the backlight is on, is illuminated. In daylight,the backlight can be turned on but will not be visible, draining the batteries.So be sure is not illuminated if backlight illumination is not required.Operating in Discrimination Mode continued on next pageF19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 17
16 25The goal of the Ground Balancing procedure is to eliminate the sound as thesearchcoil is being pumped over the ground. In some soils, the sound is notcompletely eliminated.After balancing to ground with Ground Grab®COMPUTer IZeD Gr OUNDBALANCING (GG) some users may want to further adjust the ground balancesetting manually.To manually adjust ground balance:1. Operate in ALL MeTAL Mode.2. Pump searchcoil up and down over the ground as in the COMPUTer IZeDGr OUND BALANCING procedure.3. Press or while pumpingIf the ground balance adjustment is incorrect, there will be a difference in thesound as the searchcoil is either moving toward or away from the ground. Itsounds like you are either pulling the sound out of the ground, or pushing thesound into the ground.•If the sound is louder as you raise the searchcoil, increase the groundbalance setting.•If the sound is louder as you lower the searchcoil, reduce the ground balancesetting.NOTe: e xperienced users often prefer to adjust the ground balance to get a weakbut audible response when lowering the searchcoil. This is called adjusting forpositive response. POSITIVE AND NEGATIVE RESPONSE The purpose of ground balancing is to adjust the metal detector to ignore groundminerals. If the setting is incorrect, ground minerals will give either a positive or anegative response, depending on which direction the adjustment is off.Positive ResponseIf the GND BAL setting is too high a number, the response of minerals will bepositive. This means that when the searchcoil is lowered to the ground inPinPoint or All Metal Mode, the sound will get louder as the searchcoilapproaches the ground. The sound will grow quieter as the searchcoil is raised.What, if anything, you will hear in Discrimination Mode depends on thediscrimination setting.When searching in an All Metal Mode, if ground balance is properly set to cancelthe ground, and you sweep over a positive hot rock, the rock will give a “zip”sound similar to that of a metal object. Negative ResponseIf the GND BAL setting is too low a number, the response of minerals will benegative. When the searchcoil is lowered to the ground in PinPoint or All MetalMode, the machine will be silent. The machine will sound off as the searchcoil islifted away from the ground. What, if anything, you hear in Discrimination Modedepends on the Discrimination setting.When searching in All Metal Mode a negative hot rock will produce a “boing”sound after passing over it, making it difficult to know where it is located. It willnot have the sound and “feel” of a metal object.GROUND BALANCING Reading the DisplayMost gold prospecting and relic hunting is done by ear. Listen for the louder sounds,riding on top of the constant background hum. As you sweep the searchcoil, notice the Fe3O4(iron oxide) scale to the left of thedisplay.This indicates the amount of ground mineralization.Most black sand is made of magnetite.Gold nuggets are often found in concentrated black sand deposits.For the best depth detection in highly mineralized soils, use the All Metal Mode.For the most accurate Fe3O4reading, pump the searchcoil over the ground.While sweeping the searchcoil, also notice the GND PHASE value in the middle of thescreen.GND PHASe is the ground phase; this indicates the type of minerals in the soil.Within an area, the ground phase may change.After ground balancing, periodically compare GND PHASe to GND BAL. If these twonumbers differ by a great deal, you may want to ground balance the detector again.When not adjusting the knobs, the GND BAL setting will always appear on thebottom-right of the display.GND BAL is the detector’s internal ground balance setting. The detector’s defaultground balance setting is 82.9, which is the best starting point for achieving thecorrect setting. After you perform the Ground Grab®procedure, the GND BAL number will changeto match your soil.You can change the current GND BAL setting by pressing the or buttons.See section on Ground Balancing for a more detailed explanation.experienced users often prefer to adjust the ground balance to get a weakaudible response when lowering the searchcoil to the ground. This is calledadjusting for positive response and is achieved by increasing the GND BALnumber with the key.Target ScaleThe arc across the top classifies metal objects.each time a target is detected, three segments will illuminate above the arc.The segments will remain illuminated for three seconds.This indication shows the approximate classification of the buried metal object.See the section on Target Display for a more detailed explanation.Iron is on the left. U.S. dimes and quarters are to the far right.When relic hunting, any Target-ID greater than 40 is a potential non-ferrous relic.In an air test, gold indicates right of center -- the larger the gold piece, thefarther to the right. In the ground, the ID of gold may jump around with each pass of the searchcoil.If searching in All Metal Mode, you may want to switch back into Discrimination Mode,after finding a target. r eview the 2-digit Target-ID provided in the Discrimination Modefor a more precise target identification.OPERATING IN ALL METAL MODEF19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 16
26 15GROUND BALANCING -Technical InfoFe3O4BARGRAPH The Fe3O47-segment bar graph indicates the amount of ground mineralization,independent of type, expressed as an equivalent volume concentration ofmagnetite (Fe3O4).  It updates every second.  It is sensitive to motion and will givethe most accurate readings if you pump the searchcoil up and down several timesover the ground. The presence of metal or “hot rocks” will cause the readings to beinaccurate. If you stop moving the searchcoil, the bar graph will go blank.INDICATION RELATIVE % Fe3O4SUSCEPTIBILITYMINERALIZATION7 Bars High over 1 over 2,5002 to 6 Bars Medium .026 - 1.0 61 - 2,5001 Bar very Low 0.006 - .025 15 - 60None -- less than .006 less than 15Magnetic susceptibility is expressed in micro-cgs units.  In a saltwater environmentin the absence of iron minerals, the bar graph indicates relative electrical conductivity.In soils with greater than 10,000 micro-cgs units of magnetic susceptibility, thesignal from the soil may saturate, or overload, the circuitry. This will not harmthe detector but the machine will not be usable in that condition. The solutionis to hold the searchcoil several inches above the soil surface so it is not “seeingas much dirt.” By listening and watching you will know how high you need tohold the searchcoil in order to avoid overload.The highest magnetic susceptibilities are usually found in soils developed overigneous rocks, in alluvial black sand streaks on beaches and in red clay soils ofhumid climates.The lowest magnetic susceptibilities are usually found in white beach sands oftropical and subtropical regions, and soils developed over limestone.OPERATING IN ALL METAL MODEThe All Metal Mode is more sensitive than the Discrimination Mode, and is used tofind all types of metal objects in the ground. The searchcoil must be in motion forobjects to be detected. Ground Grab®COMPUTERIZED GROUND BALANCINGNaturally occurring minerals in soil look like metal to a metal detector, so you want tocancel out this mineral signal coming from the ground, and only detect the signal frommetal objects in the ground.So before using your detector, set it in All Metal Mode and perform the automaticground balancing procedure. Press-and-hold the GG®COMPUTERIZED GROUNDBALANCING button while pumping the searchcoil up and down over the ground.r elease the button when the sound evens out. The GND BAL number on the bottomright of the screen is the detector’s internal setting which cancels out the minerals inthe ground. Different soils in different areas will require different GND BAL settings,so balance to ground before you search.Refer to the Ground Balancing section of this manual for a more in-depth explanation.Setting the ControlsAs you adjust any of the controls, notice that the values on the bottom-right of thedisplay indicate the settings of the value you are changing.If you are new to metal detecting, start with the GAIN and THr eSHOLD controls at alow enough setting that you do not hear too many unwanted sounds, like warble or aloud hum. Set the GAIN at the 12:00 position, or less. Then set the THr eSHOLD to aposition where you hear a very slight background hum, or if you prefer, position theknob just left of that position to a setting where the detector is silent.Unwanted Noiser ead the section on electromagnetic Interference.The F19™ is a highly sensitive device.It is intended for use outdoors. Indoor operation will subject it to interference from awide variety of devices in the home or office.Sweeping the SearchcoilAs you sweep the searchcoil over the ground, try to keep the searchcoil parallel to theground.Avoid lifting the searchcoil at the end of your sweeps.Operating in All Metal Mode continued on next pageF19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 15
14 27TARGET DISPLAY and AUDIOSIGNAL IndicatorThe lower-left bargraph designatesSIGNAL strength only when operating inDiscrimination Mode.The signal strength indicator at the bottom-left of the screen indicates how large orclose the buried metal target is.If all bars are illuminated, the target islarge or close to the searchcoil.If one or two bars are illuminated, thetarget is far away or small, or both.DEPTH IndicatorA target’s location and size can be verifiedusing the PINPOINT control.Press PinPoint to temporarily detect metalwithout searchcoil motion, and amonotone hum.While holding the PinPoint button, theDePTH indicator will appear.  Thenumber beneath DePTH represents thedistance of the object, in inches, from thesearchcoil. The Depth scale is calibratedto coin-sized objects. For objects otherthan a coin, the numeric value is a relativemeasure of the target’s depth.AUDIO FEEDBACKWhen a target is detected, the F19 willrespond with two types of sound:1. v.C.O. (voltage ControlledOscillator): an audio response withvariable pitch and volume.2. A LOW tone beep. In Discrimination Mode, targets which fallinto the zone along the arc whosesegments are shaded will be identifiedwith a LOW tone beep and those whosesegments are solid with v.C.O.As the user sets the discrimination levelwith the and buttons, he isdetermining which targets will beeliminated.All targets’ audio responses in All MetalMode will be v.C.O.V.C.O. (voltage Controlled Oscillator) isan audio response which provides a goodfeel for the target.The stronger the target signal, the higherthe volume and the higher the audio pitch.very weak signals will have the faintestvolume and lowest pitch.For this reason, the use of headphonesis always recommended for detecting thesmaller and deeper targets.2-DIGIT TARGET INDICATORIn Discrimination Mode the 2-digit targetindicator, in the middle of the screen,provides a specific target value to helpidentify buried targets more accurately.With practice in the field, you will learn toassociate target values with the probableidentification of buried objects. The targetvalue can vary each time the searchcoilpasses over the target, depending uponthe orientation of the object and itsdistance from the searchcoil.As a starting point, refer to the table below.TARGET ReadoutThe table below lists some commonapproximate target values. Withexperience in the field, you will recognizemany types of metal objects by theirnumeric value.OBJECTTARGET-IDfoil from gum wrapper 47 - 48U.S. nickel (5¢ coin) typically 58aluminum pull-tab 60 - 75aluminum screw cap 70 - 80zinc penny (dated after 1982) typically 78aluminum soda pop can 75 - 85copper penny, clad dime typically 83U.S. quarter (25¢ coin), clad typically 8550¢ coin, modern clad typically 87old silver dollar coin typically 89 US silver eagle $1 coin typically 91Caution: The target indications arevisual references. Many other types ofmetal can also be represented by a givenTarget-IDCONTROL PANELGAIN versus THRESHOLD“Gain” increases, or multiplies, the strength of signals from buried metal objects.For maximum detection of the smallest or most deeply buried objects, increasethe Gain. To minimize the weakest signals, reduce the Gain.“Threshold” controls the detector’s audio level. Positive threshold valuesincreases the audio response of weak target signals. Negative thresholdvalues suppress sensitivity.For searching at maximum sensitivity, first set the Gain at a low level. Thenset threshold into the positive region, with a comfortable background-humvolume level. Then increase Gain to a comfortable level, free of chatter.Increase Gain to a slight amount of chatter if you can tolerate the chatterwhile searching.For silent searching, set threshold to a negative number, and also reduceGain if necessary. Silent searching will result in the loss of some sensitivity.TOUCHPAD CONTROLS1. MENU / GGThis button has a dual function, depending on the detection mode.a. In DISC Mode, this control cycles through menu options. The active menuoption appears in bold on the display.The menu times-out after 3 seconds. b.In ALL Me TAL Mode, press-and-hold the button to activate Gr OUND Gr AB®. Ground Grab®allows you to set the detector’s internal ground setting equalto the phase of the ground you are searching over. See the section onGround Balancing for a more thorough explanation of this feature and thereason for using it.2. anda. In Discrimination Mode, and change the setting of the active menuoption.b. In All Metal Mode, and provide a manual override to the GroundBalance Setting.3. PINPOINTPress-and-hold to activate the Pinpoint feature.Pinpoint temporarily engages a no-motion detection mode. Searchcoilmotion is not necessary to detect metal. Any metal within the searchcoil’sdetection field will induce a sound. Pinpoint is generally used to determinethe exact location of a target previously detected in Discrimination Mode. F19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 14
1328GOLD PROSPECTINGGold Prospecting continued on next pageIn the United States, gold is commonly found in the westernstates, Alaska and in a few localities in the Appalachians.Hillsides are the best areas for gold prospectingusing a metal detector, because hillsides cannotbe cleaned out by panning and dredging theway streams can. Also, gold on hillsides,not far from its source vein, tends to belarger and more readily detected, thanalluvial (placer) gold, which tends toget pounded to pieces and wornaway as it rolls along thestreambed. even in a goodgold producing area,detectorists often spend anentire day without finding anygold, but will dig bits andpieces of other metal such asbirdshot, bullets and rusted tincans, etc. Another nuisance can be “Hot r ocks” - rocks containingconcentrations of iron oxides that sound like metal when passed over with thedetector. Discrimination is usually ineffective because the loss of sensitivityresulting from discrimination is enough to make the little nuggets invisible. Because most gold nuggets are tiny, and are usually found in soil which ishigh in iron oxide minerals, serious gold prospecting requires a detector withhigh sensitivity and true ground balanced All Metal operation. Set the detectorwith the sensitivity high enough to hear some noise from ground minerals, andlearn the language of the sounds you hear. Headphones are recommendedunless there are safety issues (for instance rattlesnakes). Move the searchcoilslowly and deliberately, carefully controlling its height above the ground tominimize noise from iron minerals in the soil. If you hear ground noise, theGround Balance setting could be off, so perform the ground balancingprocedure again. The ground geology typically associated with the presenceof gold will tend to change over very short distances.The Fe3O4 bar graph indicates the amount of iron mineralization in the soil. Inmost gold fields, especially alluvial deposits, gold tends to be associated withiron minerals, especially magnetite black sand. Therefore, to maximize goldrecovery, concentrate on areas where the bar graph indicates higher amountsof iron mineralization.CONTROL PANEL DISCGND BALCONTROL KNOBS:1. ON/OFF/GAINa. Click right to turn on. Click left to turn off.b. Turning the knob clockwise increases the detector’s sensitivity; thehigher the sensitivity, the deeper targets will be detected, and the morelikely the detector will be to detect very small targets.c. As you turn the knob, notice the GAIN value at the bottom-right of thescreen displays your current sensitivity setting.Sensitivity in DISC ModeThe left knob is labeled “GAIN” and in DISCr IMINATION Mode it alonecontrols the sensitivity of the detector. GAIN in ALL METAL ModeIn All Metal Mode, GAIN increases as you rotate the knob clockwise.THr e SHOLD is controlled independently using the right knob.2. DISC / ALL METAL / THRESHOLDa. Click knob to the far-left “DISC” position and the detector entersDISCr IMINATION Mode.b. Click on clockwise to operate in ALL MeTAL Mode. c. In ALL MeTAL Mode, rotate knob to change the threshold.Threshold values range from -40 to +40. In ALL Me TAL Mode, the Threshold control can be used in two ways. Control knobs continued on next pageF19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 13
12 29OPERATION & CONTROLSVOLUMEV-BREAKNOTCH WIDTHDISCGND BALON/OFF/GAIN:• Click ON/OFF• In DISC Mode rotate to change GAIN (sensitivity) from 1 to 100• In ALL METAL Mode rotate to change GAIN from 5 to 100 in steps of 5• In DISC Mode press to cycle through menu options• In ALL METAL Mode press-and-hold while bobbing coil to set ground balancePress-and-hold toactivate PINPOINT feature In DISC Mode:Change setting of active menu option In ALL METAL Mode:Change Ground Balance setting from 0 to 99.9 MODE SELECTION/THRESHOLD CONTROL• Click left to operate in Discrimination Mode• Click to right to operate in ALL METAL Mode.• Rotate knob in ALL METAL Mode to change THRESHOLD from -40 to 40POWERING UPNOTE: Immediately after powering on, your detector's unique 10-digit serialnumber is displayed once on the LCD. Two digits are displayed at a time; five2-digit numbers are displayed in sequence. This 10-digit serial number is thesame serial number imprinted on the label inside the battery compartment.• Click the left knob clockwise to turn the detector ON.• After clicking the knob on, continued clockwise rotation will increase the“sensitivity” in DISC Mode or the “GAIN” in ALL Me TAL Mode.• We suggest keeping the GAIN below 70 until you become familiar withthe detector’s operation.Searching for coins and relics at Civil War or ghost town sites oftenmeans detecting in heavy concentrations of iron and dealing with crop-stubbleor forest ground clutter. The F19 can handle the toughest ground mineralization, capable ofground balancing all the way to salt. With its fast retune speed and biaxialsearchcoil, the F19 creates superb target separation with impressive depth.The 10” elliptical coil is ideal for working between brush, rocks and debriscommonly found at old abandoned sites. An expanded 40-point iron ID rangehelps differentiate between larger iron objects and smaller nails and pieces.With FeTone™adjustable iron audio, the volume level of ferrous targets canbe lowered separate from the volume level of non-ferrous targets, allowingdesired targets to be heard much easier. The fine-tune adjustable Notch Width can be used to target specificunwanted items, such as shell casings or bottle caps, and the enhancedv-Break®, our variable Tone Breakpoint, allows the user to further customizethe detector’s settings to get unique audio on specific Target-ID ranges.Combined, the Notch Width and v -Break features create endless variationsfor fine tuning the detector to meet exact hunting needs. An adjustable back-light on the display allows for hunting in low-lightconditions. RELIC HUNTINGF19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 12
1130HOT ROCKSA hot rock is a rock which causes the metal detector to sound off because therock contains iron minerals. They come in two basic types.Negative hot rocks (also called cold rocks) are usually magnetite orcontain magnetite, and give a negative response because their groundbalance value is a higher number than the soil they are found in. Theytend to be dark in color, usually black, and usually heavy. In some casesthey will have rust stains. They are usually attracted to a magnet, and forthis reason gold prospectors always carry a magnet -- the ultimateferrous/nonferrous discriminator. In All Metal Mode, negative hot rocksproduce a boing sound rather than the zip sound of a metallic target;recognize the difference and you will learn to ignore them. As thesearchcoil passes over a hot rock, this boing sound, or negative response,is quite distinctive. To hear this response, you must be properly GroundBalanced and in All Metal Mode with an audible threshold hum. First, asthe center of the searchcoil passes over the negative hot rock, thedetector will go quite; the threshold hum momentarily silences. Then,passing beyond the negative hot rock, you hear the boing sound. As youpass the searchcoil back and forth over a negative hot rock, it will beimpossible to pinpoint and will seem as if it moves around.Positive hot rocks are iron-bearing rocks which have been oxidized bynatural weathering processes so that their GND BAL value is a numberlower than the soil they are found in. They are often small, right on thesurface, sound just like a gold nugget, and are common in many goldprospecting areas. They are usually, but not always, drawn to a magnet.They are most often reddish in color but are often black, brown, or yellow.On relic hunting sites, red clay bricks and rocks which have lined a fireplaceor a campfire will often be hot rocks. The discriminator will usually eliminatethem without difficulty if widely scattered, but if there is a large concentrationof them, the discriminator may not quiet them all. In that case, you canrevert to the rule of thumb -- “don’t dig non-repeatable signals.”r emember to always carry a magnet to help discriminate gold from hot rocksand iron.• Gold will not be attracted to a magnet.• Pieces of iron will always be attracted to a magnet.• Negative hot rocks will almost always be attracted to a magnet.• Positive hot rocks will usually be attracted to a magnet.2. TrashIf searching for coins, you want to ignore items like aluminum foil, nails andpull-tabs. These undesirable items are generally identified toward the lowerend of the 1-99 scale. You can listen to the sounds of all objects detected,and decide on what you want to dig up. Or you can eliminate unwantedmetals from detection by using the DISCr IMINATION feature.3. Identifying Buried ObjectsDifferent types of metals are classified along the arc at the top of the screenon a 1-99 scale from left to right. A 2-digit numerical reading is alsoprovided in the middle of the display for more precise target identification inDiscrimination Mode.4. Size and Depth of Buried ObjectsWhen using the detector in the motion DISC Mode, the relative depth of anobject is displayed to the left of the display over the SIGNAL strengthindicator. A more accurate depth reading is available using PINPOINT.Pinpoint displays estimated target depth, in inches. Pinpoint does notrequire the searchcoil to be in motion to detect metals. The ability to holdthe searchcoil motionless over the target also aids in tracing an outline ofthe buried object, or in pinpointing the exact location of the object usingtechniques described in the pinpointing section of this manual.5. Electromagnetic Interference (EMI)electromagnetic interference (eMI) can cause a metal detector to chatterspontaneously, to lose sensitivity for no apparent reason, or to cause aperiodic wobbly audio sound.  Common sources of eMI include powerlines, electronic communication equipment such as cellphones, fluorescentlamps, military electronics such as radar, other metal detectors andcomputer equipment.Your first line of defense against eMI is to reduce the Gain and/orThreshold. In areas with heavy eMI, operating at reduced sensitivity levelswill result in the loss of some depth, but at least the metal detector will beusable.See the section on eLeCTr OMAGNeTIC INTe r Fer e NCe for a morethorough explanation of eMI and how to manage it.THE BASICS OF METAL DETECTINGF19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 11
10 31ELECTROMAGNETIC INTERFERENCE (EMI)You are likely to encounter electromagnetic interference (eMI) when using your F19™metal detector. It is important that you recognize e MI and take appropriate measuresto deal with it. This will prevent you from giving up on a worthwhile search site, or fromreturning a properly functioning detector for repair. Symptoms of Electromagnetic InterferenceeMI can cause a metal detector to chatter spontaneously, to lose sensitivity for no apparentreason, or to cause a periodic wobbly audio sound. What you hear will depend on whatoperating mode you are using, the detector’s settings, and the source of the electricalinterference. The most common manifestation is spontaneous chatter.All metal detectors are susceptible to e MI, but they vary in what kinds of interferenceaffect them. In a given environment some metal detectors may be affected by eMIwhereas others may not. Common sources of Electromagnetic InterferenceCommon sources of eMI include: overhead electric power lines, underground power lines,other metal detectors, telephone lines carrying electronic data, computer systems, electricfences, old Cr T-based televisions, cell phones, CB and emergency communicationradios, thunderstorms, fluorescent lights, metal vapor lamps, military aircraft with electronicwarfare countermeasures turned on, electric motors, v LF military communications systemsand automobile ignition systems. At home, in a store, or in an urban environment, theremay be several different sources of interference present simultaneously.All metal detectors generate a certain amount of internal electronic noise. The F19™ isspecifically designed to enable you to work into the noise. experienced users, strivingfor maximum depth, often adjust the machine to search with a constant audiblebackground sound, and then listen through that noise for the sound of real targets. Stricter regulations in recent years have cut down on interference from electric lightdimmers and auto ignition systems. However there has also been a proliferation ofv LF-UHF wireless communication systems (cell phones, Bluetooth, Wi-Fi, etc.), whichoften affect metal detectors. Overall, the potential for electromagnetic interference isgreater than it was just a few years ago.Modern high-end metal detectors are a lot more sensitive than older units; this alsoincreases your detector’s vulnerability to eMI beyond what you may be accustomed towith an older detector. Metal detectors are by their nature designed to detect magneticfields, and electric current always produces magnetic fields.Coping with Electromagnetic InterferenceThe primary reason metal detectors provide a sensitivity (gain and/or threshold) control,is so that users can reduce sensitivity in order to eliminate response to electricalinterference. Some users are reluctant to reduce sensitivity out of fear of losing depth.At reduced sensitivity settings, you may lose some depth, but at least you can stillsearch. The Gain and Threshold knobs control the sensitivity and are your firstline of defense against EMI. The Threshold control only applies to the All Metal Mode.THE BASICS OF METAL DETECTINGA hobby metal detector is intended for locating buried metal objects. Whensearching for metals, underground or on the surface, you have the followingchallenges and objectives:1. Ignoring signals caused by ground minerals.2.Ignoring signals caused by metal objects that you do not want to find,such as pull-tabs.3. Identifying a buried metal object before you dig it up.4. e stimating the size and depth of objects to facilitate digging them up.5. e liminating the effects of electromagnetic interference from otherelectronic devices.Your F19™ metal detector is designed with these points in mind.1. Ground MineralsAll soils contain minerals. Signals from ground minerals can interfere withthe signals from metal objects you want to find. All soils differ, and candiffer greatly, in the type and amount of ground minerals present. Youtherefore want to calibrate the detector to the specific ground conditionswhere you are hunting. The detector incorporates both automated andmanual ground balancing features which will eliminate false signals frommost types of soils. To maximize the detector’s target identificationaccuracy and depth of detection, use the Gr OUND Gr AB®COMPUTer IZe D Gr OUND BALANCING function to calibrate thedetector to the ground where you are searching. See the section onGr OUND BALANCING for details.The Basics continued on next pageF19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 10
932eMI is usually easier to control in the All Metals Mode than in the DiscriminationMode.On the F19™, setting the discrimination level between 20 and 30 will usuallyreduce interference. In the Discrimination Mode, the detector may chatter if thesearchcoil is not in motion, but once you start sweeping it over the ground, thesignal from the ground will usually suppress the eMI chatter, except for anoccasional pop or click which will not sound like a real target. If you are conducting an indoor demonstration, you may find that changing theorientation of the searchcoil will reduce the pickup of eMI. If you carry a cell phone or other high-tech electronic equipment while metaldetecting and you encounter eMI, try turning the device off and see if that solvesthe problem. Turn such devices completely off, not just into standby mode. When working near overhead power lines, you may get the best results right underthe power line and the worst results when standing at a 30° to 45° angle to thepower line. Many sources of e MI are intermittent. You may find that an area which is difficultto search at one time of day may be easier after 5 PM, or on weekends. Powerlines are usually quietest late at night, and on weekend mornings. Small searchcoils usually pick up less eMI than larger searchcoils. On a site withsevere electrical interference, a small searchcoil is often a better choice than alarge one.Distinguishing Electromagnetic Interference from other problemseMI will often vary as you walk around from place to place, and it will also vary withchanges in the orientation of the searchcoil. This is almost never the case if thereis a functional problem with the metal detector itself. The most common cause of a noisy metal detector, where the problem is not eMI,is a defective searchcoil. If striking the searchcoil with your hand causes the noiseto start or stop, the problem could be a defective searchcoil. Also, a defectivesearchcoil often causes noise of a more intermittent nature than electricalinterference.The second most common cause is a loose searchcoil connector. The noise froma loose connector will usually be very erratic or intermittent in nature. Tryunplugging the searchcoil and then reconnecting it to ensure the connector is firmlyinstalled.If you use a searchcoil cover, dirt or water can accumulate inside it, and movementof those materials can cause false signals while sweeping the searchcoil.Searchcoil covers must be periodically removed and cleaned.ELECTRICAL INTERFERENCE (EMI)IX. Click the MODE knob to the right. The detector is now in the ALL MeTAL Modea. Keep GAIN set at the 12:00 positionb. r otate the THr eSHOLD knob slowly from the far counterclockwiseposition to the full clockwise position.Notice these attributes of the THr eSHOLD control, with no metalover the searchcoil.i. at low settings you will hear no soundii. at mid-scale, there will be a transition point from no sound toa barely audible, choppy sound.iii. at full scale you will hear a loud, constant tone. It may also havean irregular or choppy sound, as a result of electromagneticinterference emitted from other electrical devices.USE WITH HEADPHONES (not included)The F19™ is equipped with a 1/4” headphone jack. Any headphones with a 1/4”stereo plug will work; headphones with a mono plug will not work. Usingheadphones extends battery life, and also prevents the sounds from botheringbystanders. It also allows you to hear subtle changes in the sound more clearly,particularly if searching in a noisy location. If gold prospecting, gold nuggets areoften very small, so closely monitoring changes in sound using headphones willimprove your gold prospecting results. For safety reasons, do not use headphonesnear traffic or where other dangers are present. This device is to be used withinterconnecting cables/headphone cables shorter than three meters (ten feet).VIII. Press-and-hold and hold the nickel over the searchcoila. Notice that motion is not required.A motionless object induces a hum.b. Notice the variable pitch & volume hum.c. Move the nickel closer to and farther away from the searchcoil. Notice the changing “depth” values. QUICK-START DEMONSTRATIONF19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 9
833SEARCH TECHNIQUESTarget VerificationAfter detecting a target, do thefollowing:1. Walk around the target in a circle.2. While circling the target, continuesweeping the searchcoil across thetarget.3. Sweep once every 30° or 40° ofthe circle.If the tone does not change andthe Target-ID value is consistent asyou circle the target, you can behighly confident of the target’sidentification.If the tone or Target-ID changesas you circle the target, you mayhave multiple targets or anirregularly shaped object.If the tone completelydisappears at different angles, thetarget may be trash or a low-valuemetal. If you are new to the hobby, dig all targets. With practice in the field, youwill soon be able to correlate audible and visual target feedback withcertain types of metal objects.Pinpointing in Discrimination Mode:1. Sweep over target in narrowing side-to-side pattern.2. Take visual note of spot on ground where “beep” occurs.3. Step 90° to the side of the target.4. Sweep searchcoil over same area, at 90° to 1st sweep pattern.5. This pinpoints the target location with an “X.”SEARCHCOIL MOVEMENTWhen swing ing the searchcoil,be care ful to keep it level with theground about 1/2 inch from the sur -face. Nev er swing the searchcoillike a pen du lum.Wr ONGCOr r eCTI. Supplies Needed• a Nail • a Zinc Penny (dated after 1982)• a Nickel • a QuarterII. Position the Detectora. Place the detector on a table,with the searchcoil hanging overthe edge. Or better, have a friendhold the detector, with thesearchcoil off the ground.b. Keep the searchcoil away fromwalls, floors and metal objects.c. r emove watches, rings andjewelry.d. Turn off fluorescent lights,appliances and cell phoneswhose electromagnetic emissions maycause interference.e. Pivot the searchcoil back.III. Click on power with the left knob. Set the Gain at the 12:00position for this demonstration.IV. Click the right knob to the left to enter DISC setting.V. Press until “v OLUMe” is highlighted on display.a. Press or until number on display is 12.b. Wave the nail over the searchcoil. Notice volume.c. Wave a coin over the searchcoil. Notice louder volume.d. enter the menu/volume control again.Use and to change volume as you wave nail oversearchcoil. Notice the volume changing.VI. a. Set volume at 20. Wave the nail over the searchcoil. b. Press until DISC is highlighted on display.c. Press repeatedly, while continuing to wave the nail.The nail will be discriminated out. The Target-ID at which it is eliminateddepends on the size of the nail.VII. Wave each object over the searchcoil.Sweep coins flat and parallel to the searchcoil. This is howyou will usually find them buried.a. Notice the 2-digit Target-IDs for each object.b. Motion is required.Objects must be in motion over the searchcoil to bedetected in this mode.QUICK-START DEMONSTRATIONQuick-Start Demo continued on next pageF19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 8
34 7A 3-segment battery indicator at the top-left of the display indicates thebattery condition.The detector requires a single 9-volt ALKALINE battery.Do not use ordinary zinc carbon batteries.Do not use “Heavy Duty” batteries.Such low quality batteries may work in the detector but have a short life andare prone to leakage.r echargeable batteries can also be used.If you wish to use rechargeable batteries, we recommend using aNickel Metal Hydride rechargeable battery.The battery compartment is located on the back side of the housing.Slide the battery door to the side and remove it to expose the batterycompartment.BATTERY LIFEexpect about 15 to 20 hours of life from a 9-volt alkaline battery, without useof backlight.Backlight increases power consumption and decreases battery life, withsignificant power drain at maximum brightness.r echargeable batteries can provide up to 8 hours of usage per charge.SPEAKER VOLUME AND BATTERY CHARGEYou may notice the speaker volume drop when only one battery segment isilluminated.With one segment flashing, low speaker volume will be very apparent.BATTERY INDICATORThe 3-segment battery indicator has 4 stages of indication.These indications are accurate for a 9-volt alkaline battery.Segments Illuminated Battery Voltage3 -segments more than 8.4 volts2 -segments more than 7.5 volts1 -segment more than 6.8 volts1 -segment flashing less than 6.8 voltsAfter the 1st segment begins flashing, expect the detector to shut off within 10minutes.A rechargeable battery will usually illuminate two to three segmentsthroughout most of its useful charge. But as soon as it drains to the 1-segmentlevel, it will then lose its charge very rapidly.BATTERY DISPOSAL & RECYCLINGAlkaline batteries may be disposed of in a normal waste receptacle orrecycled. Non-Alkaline batteries should be recycled. In the state of Californiaall battery types must be recycled. Please refer to local municipalities fordetailed disposal and recycling requirements.BATTERIESTARGET PINPOINTINGAfter you have identified a target using Discrimination Mode,press-and-hold the PINPOINT button to identify the target’s exactlocation. This technique can yield more information about the target’sshape and size and also find its exact location to facilitate extraction.Pinpoint as follows:1. Position the searchcoil just barely off the ground, and to the side ofthe target.2. Now move the searchcoil slowly across the target; you can locateit by the sound. The target is located directly under where thesound is loudest.Narrow It Down:1. To narrow the response further, position the center of the searchcoilnear the center of the response pattern, but not directly over thecenter.2. r elease the PINPOINT button.3. Press-and-hold PINPOINT button again.4. r epeat this narrowing procedure to narrow the field of detectionfurther.Note: Depth indication is less accurateafter narrowing.SeAr CHCOIL Dr IFTIf you plan to use thePINPOINT Mode forcontinuous searching,realize that drift will occurover time, causing thedetector to gain or losesensitivity. Periodic retuningof the detector is required tominimize drift; release andpress PINPOINT again toretune.F19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 7
356ASSEMBLYAssembly is easy andrequires no tools.●1Position S-r od upright.●2r otate theLOCKING COLLArfully in thecounterclockwisedirection.●3Insert your fingerinside the tube andmake sure the INTer NAL CAM LOCK is flush with theinside of the tube.●4Insert the MIDDLe STe M into the S-r OD,with the SILv er BUTTON pointed upward●5r otate the MIDDLe STeM until the SILv e r BUTTONsnaps into the hole.●6Twist the LOCKING COLLAr fully in the clockwise directionuntil it locks.●7r epeat this process on the LOWer STeM.●8Using the BOLT and KNUr LeD KNOB, attach theSeAr CHCOIL to the LOWer STe M.●9Adjust the LOWe r STeM to a length that lets you maintain acomfortable upright posture, with your arm relaxed at your side,and the Se Ar CHCOIL parallel to the ground in front of you.●10Wind the CABLe securely around the STeMS, leaving slackat the bottom.●11Connect CABLe PLUG to housing.Do not twist the Cable or Plug. Turn Locking r ing only. Useminimal finger pressure to start the threads. Do not cross-thread. When the Locking r ing is fully engaged over thethreaded connector, give it a firm turn to make sure it is verytight. When the Locking r ing is fully engaged over thethreaded connector, it may not cover all of the threads.●12Tighten both LOCKING COLLAr S.S-RODLOCKING COLLARINTERNALCAM LOCKSILVER BUTTONMIDDLESTEMS-ROD MIDDLE STEMl2l3l4*Note: very tall users can purchase the optional e xtendedLower Stem (TUBe5X), for extended reach.Caution:Forcing in MIDDLe STeM with CAMLOCK raised may form a burr oncam lock. If this happens, removeburr with knife to allow insertion.LockingCollarLockingCollarS-Rod VelcroStrapVelcroStrapKnurledKnobHand-gripSearchcoilCableLowerStemMiddleStemCablePlugBoltSearchcoil S-ROD MIDDLE STEMl4l5Relic-Hunting and Coin-Shootingwith the Optional 5” DD SearchcoilWhile the F19™ is a high performance, specialized relic hunting metal detector,it is also a good multi-purpose detector. With the purchase of a 5” DD searchcoil,you can bring more precision to your coin-shooting and gold prospectingsearches.The standard 10” elliptical F19™ searchcoil is engineered for target separationand a wide sweep. This searchoil is ideal for searching field stubble and forestdebris often associated with relic hunting sites.If you want a smaller sweep area, the 5” DD should be considered.Advantages of the 5” DD searchcoil over the standard 10” searchcoil are:1. More separation between adjacent buried targets.Better at extremely trashy sites.2. More sensitivity to the tiniest targets and gold pieces.3. Fits into tight spaces.For information aboutthe 5” DD searchcoil(Part# 5COIL-GBUG,MSRP=$159.99),Please call800-685-5050.The Gold Bug Coil operates with the Fisher® F19●13Secure cable with velcro straps as shown.F19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 6
36ASSEMBLYAdjusting the ArmrestThe armrest may be movedforward or backward by removingthe single screw and nut, and thenrepositioning the 2-piece armrest.Users with shorter arms may findthe armrest more comfortable inthe forward position. In order tomove the armrest backward, theplastic plug must be removed fromthe aluminum tube.Armrest StrapSome users prefer to use the strapwhen swinging the detectorvigorously, in order to hold thedetector securely against the arm.The detector can always be usedwithout the strap, with nocompromise to detector balanceand stability under most conditions.Hand-gripNutScrewSearchcoilCableCablePlugSearchcoilS-RodArmrestArm StrapVelcroStrapMiddleStemVelcroStrapLockingCollarLockingCollar1/4” Headphone JackVOLUMEV-BREAKNOTCH WIDTHDISCGND BALVOLUMEV-BREAKNOTCH WIDTHDISCGND BALTREASURE HUNTER’S CODE OF ETHICS• Always check Federal, State, County and local laws before searching.• Respect private property and do not enter private property without theowner’s permission.• Take care to refill all holes and leave no damage.• Remove and dispose of any and all trash and litter found.• Appreciate and protect our inheritance of natural resources, wildlife andprivate property.• Act as an ambassador for the hobby; use thoughtfulness, consideration andcourtesy at all times.• Never destroy historical or archaeological treasures.• All treasure hunters may be judged by the example you set; always conductyourself with courtesy and consideration of others.5F19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 5DEVICE SPECIFICATIONSMechanical: S-rod with electronics housing on rod, 3-piece breakdownconstruction, nonmetallic telescoping lower rod, adjustable position ArmrestWeight: 2 lbs. 12 oz. (1.25 kg) with battery installedStandard searchcoil: 10 inch (25.4 cm) closed-frame elliptical biaxial,waterproofBatteries: Single 9 volt rectangular alkalineOperating principle: VLF induction balanceOperating frequency: 19.2 kHz, crystal controlledReactive overload: 10,000 micro-cgs (with standard searchcoil)Resistive overload: 1,200 micro-cgs (with standard searchcoil)Ground balance range: From ferrite to salt water inclusiveDiscrimination ground suppression: Combination of 2nd and 3rdorder methodsTarget-ID ground suppression: 3rd orderBattery life: 15+ hours on good quality alkaline (less using backlight)Operating temp range: 14 to 122 degrees F (-10 to +50 C)Operating humidity range: 0 - 90% noncondensingImmediately after powering on, your detector's unique 10-digit serialnumber is displayed once on the LCD. Two digits are displayed at atime; five 2-digit numbers are displayed in sequence. This 10-digitserial number is the same serial number imprinted on the label insidethe battery compartment and on the box.
374TERMINOLOGYF19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 4The following terms are used throughout the manual, and are standardterminology among detectorists.RELICA relic is an object of interest by reason of its age or its association withthe past. Many relics are made of iron, but can also be made of bronzeor precious metals.IRONIron is a common, low-grade metal that is an undesirable target in certainmetal detecting applications. Examples of undesirable iron objects are oldcans, pipes, bolts and nails.Sometimes, the desired target is made of iron. Property markers, forinstance, contain iron. Valuable relics can also be composed of iron;cannon balls, old armaments and parts of old structures and vehicles canalso be composed of iron.FERROUSMetals which are made of, or contain, iron.ELIMINATIONReference to a metal being "eliminated" means that the detector will notemit a tone, nor display a Target-ID, when a metal object passes throughthe searchcoil's detection field.DISCRIMINATIONWhen the detector emits different tones for different types of metals, andwhen the detector "eliminates" certain metals, we refer to this as thedetector "discriminating" among different types of metals.Discrimination is an important feature of professional metal detectors.Discrimination allows the user to ignore trash and otherwise undesirableobjects.PINPOINTINGPinpointing is the process of finding the exact location of a buried object.Long-buried metals can appear exactly like the surrounding soil, and cantherefore be very hard to isolate from the soil.V.C.O.Meaning “voltage controlled oscillator,” the V.C.O. audio method causesboth the audio pitch and the volume to rise as signal strength increases.V.C.O. improves the user's ability to interpret a target's size and depth.Very weak signals (for small or very deeply buried objects) have thefaintest volume and the lowest pitch. Larger objects, and those closer tothe searchcoil, will induce a higher volume and higher pitch sound.GROUND BALANCINGGround Balancing is the ability of the detector to ignore, or "see through,"the earth's naturally occurring minerals, and only sound a tone when ametal object is detected. This detector incorporates proprietary circuitry toeliminate false signals from many mineralized soils.According to FCC part 15.21 Changes or Modifications made to this device not expressly approved bythe party responsible for compliance could void the users authority to operate this equipment.This device complies with FCC Part 15 Subpart B Section 15.109 Class B.This equipment has been tested and found to comply with the limits for a Class B digital device,pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protectionagainst harmful interference in a residential installation. This equipment generates, uses and canradiate radio frequency energy and, if not installed and used in accordance with the instructions,may cause harmful interference to radio communications. However, there is no guarantee thatinterference will not occur in a particular installation. If this equipment does cause harmfulinterference to radio or television reception, which can be determined by turning the equipment offand on, the user is encouraged to try to correct the interference by one or more of the followingmeasures:-- Reorient or relocate the receiving antenna.-- Increase the separation between the equipment and receiver.-- Connect the equipment into an outlet on a circuit different from that to which thereceiver is connected.-- Consult the dealer or an experienced radio/TV technician for helpThis device complies with Industry Canada license-exempt RSS standard(s). Operation is subjectto the following two conditions: (1) this device may not cause interference, and (2) this device mustaccept any interference, including interference that may cause undesired operation of the device.This radio transmitter 8188A-F19MD has been approved by Industry Canada to operate with theantenna types listed below with the maximum permissible gain and required antenna impedancefor each antenna type indicated. Antenna types not included in this list, having a gain greater thanthe maximum gain indicated for that type, are strictly prohibited for use with this device.Antennas:1. 5” DD Coil, Part Number 5COIL-GBUG2. 10” DD Coil,Part Number 10COILDD-FRL3. 11” DD Coil, Part Number 11COIL-GBUGUnder Industry Canada regulations, this radio transmitter may only operate using an antenna of atype and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reducepotential radio interference to other users, the antenna type and its gain should be so chosen thatthe equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successfulcommunication.Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radioexempts de licence. L’exploitation est autorisée aux deux conditions suivantes : (1) l’appareil nedoit pas produire de brouillage, et (2) l’utilisateur de l’appareil doit accepter tout brouillageradioélectrique subi, même si le brouillage est susceptible d’en compromettre le fonctionnement.Le présent émetteur radio 8188A-F19MD a été approuvé par Industrie Canada pour fonctionneravec les types d’antenne énumérés ci-dessous et ayant un gain admissible maximal et l’impédancerequise pour chaque type d’antenne. Les types d’antenne non inclus dans cette liste, ou dont legain est supérieur au gain maximal indiqué, sont strictement interdits pour l’exploitation del’émetteur.Conformément à la réglementation d’Industrie Canada, le présent émetteur radio peut fonctionneravec une antenne d’un type et d’un gain maximal (ou inférieur) approuvé pour l’émetteur parIndustrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à l’intention desautres utilisateurs, il faut choisir le type d’antenne et son gain de sorte que la puissance isotroperayonnée équivalente (p.i.r.e.) ne dépasse pas l’intensité nécessaire à l’établissement d’unecommunication satisfaisante.
338Introduction to the F19TMThe new F19™ is unique among relic hunting detectors for its versatilefunction as an all-purpose treasure detector and also its high sensitivity tosmall gold nuggets.The controls, menu options and features are tailored to relic-hunting, includinga sophisticated ground balancing system, separate control oversignal gain and threshold and a unique discrimination controlsystem. These features also make for a great gold prospecting detector,especially when the F19 is outfitted with the optional 5” DDsearchcoil. While the F19 makes for a highly competent coinshootingdetector, its user interface and features are not specificallydesigned for this purpose. As a coin-shooter, you will notice that theF19 exhibits slightly lower sensitivity to high-conductivity coins,like a U.S. quarter; this is a result of its specialized design toemphasize sensitivity to smaller, lower conductivity metals like relics andgold nuggets.The F19 is outfitted with a 10”DD closed elliptical searchcoil as standardequipment since this searchcoil construction is best-suited to relic-hunting.At the trashiest sites, you may find the smaller optional 5”DD searchcoil makespinpointing easier, is better suited to penetrate highly mineralized soils andimproves target separation.Congratulations!Congratulations on your purchase of the new F19™ metal detector. The F19™has been custom designed to find the smallest targets, provide superior targetseparation and features advanced discrimination control.Whether you use your Detector in the backyard, at the shoreline, in themountains or fields afar, your investment will let you experience the excitementof searching for yet uncovered treasures and give you hours and years ofoutdoor enjoyment. Buried treasure can be as near as your own door step andstretch from horizon to horizon. On your own or with friends, you’ll never runout of places to use your F-19.This manual has been written to help you get optimal use of your detector, so wehope you will read it thoroughly before your first outing and will also refer back tothis manual from time to time to reinforce features and methods as you becomemore proficient in the field.Happy Hunting from Fisher Research Labs!5-YEAR LIMITED WARRANTYRegister your warranty on-line for a chance to win aFREE DETECTOR.For details, visit www.fisherlab.comF19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 3The F19™ metal detector is warranted against defects in materialsand workmanship under normal use for 5 years from the date ofpurchase to the original owner. Damage due to neglect, accidental damage, or misuse of thisproduct is not covered under this Warranty. Decisions regardingabuse or misuse of the detector are made solely at the discretionof the manufacturer. Proof of Purchase is required to make a claim under thiswarranty.Liability under this Warranty is limited to replacing or repairing, atour option, the metal detector returned, shipping cost prepaid toFisher Labs. Shipping cost to Fisher Labs is the responsibility of theconsumer.To return your detector for service, please first contact Fisher Labsfor a Return Authorization (RA) Number. Reference the RAnumber on your package and return the detector within 15 days ofcalling to:Fisher Research Labs, Inc.1465 Henry Brennan Dr.El Paso, TX 79936Phone: 915-225-0333 ext.118NOTICE TO CUSTOMERS OUTSIDE THE U.S.A.This Warranty may vary in other countries; check with your distributorfor details.Warranty does not cover shipping costs.Warranty coverage does not include the cost of transportingthe detector back to an owner who is located outside of theUnited States of America.
239Copyright© 2015 by Fisher Research Labs, Inc.All rights reserved, including the right to reproduce this book, or parts thereof, in any form.Published by Fisher Research Labs, Inc.Fisher®is a registered trademark of Fisher Research Labs, Inc.www.fisherlab.com1465 Henry Brennan Dr., El Paso, TX 79936 • (915) 225-0333TABLE OF CONTENTSIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7Quick-Start Demo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-9Headphones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9Basics Of Metal Detecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-11Ground Minerals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10Trash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11Identifying Buried Objects . . . . . . . . . . . . . . . . . . . . . . . . . . .11Size and Depth of Buried Objects . . . . . . . . . . . . . . . . . . . . .11electromagnetic Interference (e MI) . . . . . . . . . . . . . . . . . . . .11Operation and Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13Control KnobsOff / On / Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13Disc / All Metal / Threshold . . . . . . . . . . . . . . . . . . . . . . . .13Touchpad ControlsMenu/Ground Grab®(Computerized Ground Balancing) . . . .14+and - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14Pinpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14Operating in All Metal ModeGround Grab®(Computerized Ground Balancing) . . . . . . . .15Setting the Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15Unwanted Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15Sweeping the Searchcoil . . . . . . . . . . . . . . . . . . . . . . . . . . . .15r eading the Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16Target Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 Operating in Discrimination ModeGround Grab®(Computerized Ground Balancing) . . . . . . . .17Setting the Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17MeNU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17-19Unwanted Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20Sweeping the Searchcoil . . . . . . . . . . . . . . . . . . . . . . . . . . . .20Using Pinpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20r eading the Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-22Ground Balancing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23-25Ground Balancing Technical Info . . . . . . . . . . . . . . . . . . . . . . . . . .26Target Display & Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27Gold Prospecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28r elic Hunting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29Hot r ocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30electromagnetic Interference (e MI) . . . . . . . . . . . . . . . . . . . . . .31-32Search Techniques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33Target Pinpointing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34Optional 5”DD Searchcoil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35Device Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36Treasure Hunter’s Code of ethics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Back CoverF19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 2
FOR COMPLETE DETAILS VISIT WWW.FISHERLAB.COM • 1-800-685-5050ACCESSORIESFOR COMPLETE DETAILS VISIT WWW.FISHERLAB.COM • 1-800-685-5050Fisher® Padded Carry BagRugged double stitched construction. Includes handy exteriorpocket for extra batteries or small accessories. – 103693000CFisher® Camo BackpackLarge camouflage and black with Fisher® logo. – FCBACKPACKFisher® Camo PouchCamo pouch with two inside pockets, belt included. – PCH-FFisher® Stereo Deluxe HeadphonesAdjustable single-volume control, 1/4 jack” jack, aluminum cones and coiled cord. 9720971000Stereo HeadphonesUse with Fisher® metal detectors. Lightweight and adjustable with true stereo sound, adjustable volume, 1/4 jack with 1/8 adaptor, 4’ cable. – 9720950000Metal Sand ScoopLarge galvanized metal scoop with filtering holes. Strong Rubberized grip. – SAND SCOOPGold PickTempered steel head is 10” long, edge is 3-1/4” wide, overall length 19”. Durable fiberglass handle, rubberized grip and super magnet attached to the head. – GOLDPICKLesche KnifeMade from high quality heat-treated tempered steel. The ultimate digging tool.Comes with a durable sheath. 12" in length with a 7" serrated blade. – LESCHE KNIFE Fisher® Baseball Cap One-size-fits-all. – FCAP Fisher® Camo Baseball Cap One-size-fits-all. Velcro closure, camouflage with Fisher® logo. – FCCAP Fisher® Coffee Mug16oz, stainless steel and plastic – FMUGFisher® T-Shirt100% cotton with Fisher® Logo. Sizes: S, M, LG, XL & XXL – FTSHIRTReplacement/Accessory Searchcoils11” DD Elliptical, Open Accessory Coil – 11COIL-GB*10” DD Elliptical, Closed Accessory Coil – 10COILDD-FRL 5” DD Round, Closed Replacement Coil – 5COIL-GBUGCoil Covers*Specially made to protect your coil from abrasion and damage. 11” DD Coil Cover – COVER-11DD10” Biaxial Accessory Coil Cover – 202319000 5” DD Coil Cover – 5COVER-BLKRain CoverSpecially designed to protect your detector from dirt and water – RAINCOV-GBGoldProspecting Kits*Image not shown.OWNER’S MANUALF19-MANUAL-printer_F19 MANUAL-printer 1/29/15 3:16 PM Page 1MF19 Rev 1 021015TMUse 9-voltALKALINE batteries.Do not use“Heavy Duty” batteries.Do not useordinary “Zinc Carbon” batteries.

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