OWNER`S MANUAL
Contents
1. 16 Target Scale ura da ea oe boa ete y 16 Operating in Discrimination Mode Ground Grab Computerized Ground Balancing 17 Setting the Controls 2 2652 etu aaa a eb eee sends 17 Gall odiada 17 MOTE EA ANA AS ae Bee 17 MENO rosas a ad 17 19 Unwanted Noise 20 Sweeping the Searchcoil 20 USMO PINDOINE sts222c0 4 e084 28e0e eenes og eee aed ees 20 Reading the Display 20 22 Ground Balancing Seriea cc ua le ar editer 23 25 Ground Balancing Technical Info 26 Target Display Audio 27 Gold Prospecting 24 2 5 seen So dati en Rene ne date ar 28 Relec RUANO ER do ls 29 FOOL ROCKS 2522225 rai ada He wie UE PUS Gewese on 30 Electromagnetic Interference EMI 31 32 Search T CANIQU S SEE as EAS ee a 33 Target PINBOIMUNO AS a eS ee Be 34 Optional 5 DD Searchcoil 35 Device Specifications cir a 36 Treasure Hunter s Code of Ethics 36 E A A A tee 38 ACCESSONGES errar arca ara e a laca Back Cover Congratulations Congratulations on your purchase of the new F19 M metal detector The F19 has been custom designed to find the smallest targets provide superior target separation and features advanced discrimination control Whether you use your Detector in2. This device complies with Industry Canada license exempt RSS standard s Operation is subject to the following two conditions 1 this device may not cause interference and 2 this device must accept any interference including interference that may cause undesired operation of the device This radio transmitter 8188A GB has been approved by Industry Canada to operate with the antenna types listed below with the maximum permissible gain and required antenna impedance for each antenna type indicated Antenna types not included in this list having a gain greater than the maximum gain indicated for that type are strictly prohibited for use with this device Antennas 1 5 DD Coil Part Number 5COIL GBUG 2 10 DD Coil Part Number 10COILDD FRL Under Industry Canada regulations this radio transmitter may only operate using an antenna of a type and maximum or lesser gain approved for the transmitter by Industry Canada To reduce potential radio interference to other users the antenna type and its gain should be so chosen that the equivalent isotropically radiated power e i r p is not more than that necessary for successful communication Le pr sent appareil est conforme aux CNR d Industrie Canada applicables aux appareils radio exempts de licence L exploitation est autoris e aux deux conditions suivantes 1 l appareil ne doit pas produire de brouillage et 2 l utilisateur de l appareil doit accepter tout brouillage radio
3. FISHER EE Fio OWNER S MANUAL Use 9 volt ALKALINE batteries Do not use Heavy Duty batteries Do not use ordinary Zinc Carbon batteries TABLE OF CONTENTS jal elelUls cl eer lea atar guerras eee et erecta erat ed hry wey ae dis 3 ISTMINOIOON calas lis da e e 4 PASS OWN dareena as tias E es ete ai 5 6 BAGES se burda Oe wae ite ee ea ans ate Be De datos de erie 7 QUICK Star DEMO ESRI AE ER da cia datada trata 8 9 Headphones 1 ac do dr id rada bs 9 Basics Of Metal Detecting 10 11 Ground Minerals cocer me 54 oe hie oes Ss ae 10 A AP IN 11 Identifying Buried Objects 11 Size and Depth of Buried Objects 11 Electromagnetic Interference EMI 11 Operation and GOntrolS lt etarra Gt NAN eee ne 12 Gontrol Ranel ui coe tele ee ee alc Mar ee hae tet a ae hie ects alle 13 Control Knobs ORS Om Gain cregio alii Oda ae Aa 13 Disc All Metal Threshold 13 Touchpad Controls Menu Ground Grab Computerized Ground Balancing 14 o A A A Bes sip arate wae 8 14 PINDO sara ae ack en de Sees i Bak a EN ik 2 14 Operating in All Metal Mode Ground Grab Computerized Ground Balancing 15 Setting the ControlS 15 Unwanted Noise 15 Sweeping the Searchcoil 15 Reading the Display
4. press and hold the PINPOINT button to identify the targets exact location This technique can yield more information about the target s shape 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 of the target 2 Now move the searchcoil slowly across the target you can locate it by the sound The target is located directly under where the sound is loudest Narrow It Down 1 To narrow the response further position the center of the searchcoil near the center of the response pattern but not directly over the center Release the PINPOINT button Press and hold PINPOINT button again Repeat this narrowing procedure to narrow the field of detection further Note Depth indication is less accurate after narrowing A NO SEARCHCOIL DRIFT If you plan to use the PINPOINT Mode for continuous searching realize that drift will occur over time causing the detector to gain or lose sensitivity Periodic retuning of the detector is required to minimize drift release and press PINPOINT again to retune 34 Relic Hunting and Coin Shooting with the Optional 5 DD Searchcoil While 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 prospectin
5. This represents the same Target Identification but displayed graphically on the scale Target Scale This 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 lron 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 the farther to the right In the ground the ID of gold may jump around with each pass of the coil because of interference from iron minerals in the ground 20 OPERATING IN DISCRIMINATION MODE SIGNAL Each time a target is detected bars will illuminate on the bottom left showing the strength of the target s signal lf 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 In Discrimination Mode when menu is not displayed pressing Spor will change the discrimination setting As the level of discr
6. is so that users can reduce sensitivity in order to eliminate response to electrical interference 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 still search The Gain and Threshold knobs control the sensitivity and are your first line of defense against EMI The Threshold control only applies to the All Metal Mode 31 ELECTRICAL INTERFERENCE EMI EMI is usually easier to control in the All Metals Mode than in the Discrimination Mode On the F19 setting the discrimination level between 20 and 30 will usually reduce interference In the Discrimination Mode the detector may chatter if the searchcoil is not in motion but once you start sweeping it over the ground the signal from the ground will usually suppress the EMI chatter except for an occasional pop or click which will not sound like a real target If you are conducting an indoor demonstration you may find that changing the orientation of the searchcoil will reduce the pickup of EMI If you carry a cell phone or other high tech electronic equipment while metal detecting and you encounter EMI try turning the device off and see if that solves the problem Turn such devices completely off not just into standby mode When working near overhead power lines you may get the best results right under the power line and the worst results when standing at a 30 to 45 angle to
7. order Battery 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 noncondensing Immediately after powering on your detector s unique 10 digit serial number is displayed once on the LCD Two digits are displayed at a time five 2 digit numbers are displayed in sequence This 10 digit serial number is the same serial number imprinted on the label inside the battery compartment and on the box TREASURE HUNTER S CODE OF ETHICS e Always check Federal State County and local laws before searching e Respect private property and do not enter private property without the owner s permission e Take care to refill all holes and leave no damage e Remove and dispose of any and all trash and litter found e Appreciate and protect our inheritance of natural resources wildlife and private property e Act as an ambassador for the hobby use thoughtfulness consideration and courtesy at all times e Never destroy historical or archaeological treasures e All treasure hunters may be judged by the example you set always conduct yourself with courtesy and consideration of others 36 According to FCC part 15 21 Changes or Modifications made to this device not expressly approved by the 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
8. 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 and pitch 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 Relative 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 avoid drift 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 the Surrounding soil to the naked eye If you are not adept at pinpointing digging up and retrieving a small metal object can be very frustrating So learn how to narrow it down READING THE DISPLAY TARGEFID Each time you pass the searchcoil over a metal object a 2 digit value will appear in the center of the display See the manual section on Target Identification for a better understanding of these values Three segments will simultaneously appear above the arc at the top of the screen
9. detector are made solely at the discretion of the manufacturer Proof of Purchase is required to make a claim under this warranty Liability under this Warranty is limited to replacing or repairing at our option the metal detector returned shipping cost prepaid to Fisher Labs Shipping cost to Fisher Labs is the responsibility of the consumer To return your detector for service please first contact Fisher Labs for a Return Authorization RA Number Reference the RA number on your package and return the detector within 15 days of calling to Fisher Research Labs Inc 1465 Henry Brennan Dr El Paso TX 79936 Phone 915 225 0333 ext 118 NOTICE TO CUSTOMERS OUTSIDE THE U S A This Warranty may vary in other countries check with your distributor for details Warranty does not cover shipping costs Warranty coverage does not include the cost of transporting the detector back to an owner who is located outside of the United States of America FISHER Copyr ight 2014 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 com 1465 Henry Brennan Dr El Paso TX 79936 915 225 0333 CE 39 ACCESSORIES Fisher Padded Carry Bag es Rugged double stitched construction Includes handy exterior pocket for extra batteries or
10. detector is silent Unwanted Noise Read 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 a wide variety of devices in the home or office Sweeping the Searchcoil As you sweep the searchcoil over the ground try to keep the searchcoil parallel to the ground Avoid lifting the searchcoil at the end of your sweeps Operating in All Metal Mode continued on next page 15 OPERATING IN ALL METAL MODE Reading the Display Most 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 Fez0 iron oxide scale to the left of the display 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 Fez0 reading pump the searchcoil over the ground While sweeping the searchcoil also notice the GND PHASE value in the middle of the screen 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 two numbers differ by a great deal you may want to ground balance the det
11. is available using PINPOINT Pinpoint displays estimated target depth in inches Pinpoint does not require the searchcoil to be in motion to detect metals The ability to hold the searchcoil motionless over the target also aids in tracing an outline of the buried object or in pinpointing the exact location of the object using techniques described in the pinpointing section of this manual 9 Electromagnetic Interference EMI Electromagnetic interference EMI can cause a metal detector to chatter spontaneously to lose sensitivity for no apparent reason or to cause a periodic wobbly audio sound Common sources of EMI include power lines electronic communication equipment such as cellphones fluorescent lamps military electronics such as radar other metal detectors and computer equipment Your first line of defense against EMI is to reduce the Gain and or Threshold In areas with heavy EMI operating at reduced sensitivity levels will result in the loss of some depth but at least the metal detector will be usable See the section on ELECTROMAGNETIC INTERFERENCE for a more thorough explanation of EMI and how to manage it OPERATION CONTROLS POWERING UP e Click the left knob 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 METAL Mode e We suggest keeping the GAIN below 70 until you become familiar with the detector
12. lectrique subi m me si le brouillage est susceptible d en compromettre le fonctionnement Le pr sent metteur radio 8188A GB a t approuv par Industrie Canada pour fonctionner avec les types d antenne num r s ci dessous et ayant un gain admissible maximal et limp dance requise pour chaque type d antenne Les types d antenne non inclus dans cette liste ou dont le gain est sup rieur au gain maximal indiqu sont strictement interdits pour l exploitation de l metteur Conform ment la r glementation d Industrie Canada le pr sent metteur radio peut fonctionner avec une antenne d un type et d un gain maximal ou inf rieur approuv pour l metteur par Industrie Canada Dans le but de r duire les risques de brouillage radio lectrique l intention des autres utilisateurs il faut choisir le type d antenne et son gain de sorte que la puissance isotrope rayonn e quivalente p i r e ne d passe pas l intensit n cessaire l tablissement d une communication satisfaisante 37 5 YEAR LIMITED WARRANTY Register your warranty on line for a chance to wina FREE DETECTOR For details visit www tisherlab com The F19 metal detector is warranted against defects in materials and workmanship under normal use for 5 years from the date of purchase to the original owner Damage due to neglect accidental damage or misuse of this product is not covered under this Warranty Decisions regarding abuse or misuse of the
13. of the nail VII Wave each object over the searchcoil Sweep coins flat and parallel to the searchcoil This is how you 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 be detected in this mode O Quick Start Demo continued on next page QUICK START DEMONSTRATION VIII Press and hold lt gt and hold the nickel over the searchcoil a Notice that motion is not required A motionless object induces a hum b Notice the variable pitch 4 volume hum c Move the nickel closer to and farther away from the searchcoil Notice the changing depth values IX Click the MODE knob to the right The detector is now in the ALL METAL Mode a Keep GAIN set at the 12 00 position b Rotate the THRESHOLD knob slowly from the far counterclockwise position to the full clockwise position Notice these attributes of the THRESHOLD control with no metal over the searchcoil i at low settings you will hear no sound ii at mid scale there will be a transition point from no sound to a barely audible choppy sound iii at full scale you will hear a loud constant tone It may also have an irregular or choppy sound as a result of electromagnetic interference emitted from other electrical devices Use with headphones not included The F19 is equipped with a 1 4 headphone jack Any headphones with a stereo plug will work headph
14. process on the LOWER STEM Using the BOLT and KNURLED KNOB attach the SEARCHCOIL to the LOWER STEM Adjust the LOWER STEM to a length that lets you maintain a comfortable upright posture with your arm relaxed at your side and the SEARCHCOIL parallel to the ground in front of you Wind the CABLE securely around the STEMS Connect CABLE PLUG to housing Do not twist the Cable or Plug Turn Locking Ring only Use minimal finger pressure to start the threads Do not cross thread When the Locking Ring is fully engaged over the threaded connector give it a firm turn to make sure that it is very tight When the Locking Ring is fully engaged over the threaded connector it may not cover all of the threads Tighten both LOCKING COLLARS QO Secure cable with velcro straps as shown Note Very tall users can purchase the optional Extended Lower Stem TUBE5X for extended reach MIDDLE STEM T LOCKING GX COLLAR INTERNAL CAM LOCK SILVER BUTTON MIDDLE STEM 0 4 Cabl Ari ID Plug oS Velcro Str S Rod 7 1 1 s Locking 7 D Collar Silver Button Middle q Stem Searchcoil Cable Locking A Collar Silver Button U Velcro Lower _ Searchcoil BATTERIES A 3 segment battery indicator at the top left of the display indicates the battery condition The detector requires a single 9 volt ALKALINE batte
15. s operation HOW TO WORK THE CONTROLS FISHER o O NU SY is VOLUME OVERLOAD V BREAK NOTCH WIDTH lt gt GAINTHRESH TARGET IDGND PHASE DISCGND BAL ALFe304 A 7 14 A gt ZPRESHO A QUE Se DISC MODE ON OFF GAIN a MODE SELECTION e Click ON OFF e In DISC Mode press and THRESHOLD CONTROL e In DISC Mode rotate to cycle through e Click left to operate to change GAIN menu options in Discrimination oer ee from e In ALL METAL Mode HIGOS pi ra tb i e Click to right to while bobbing col operate in ALL METAL e In ALL METAL Mode to set ground balance Mode rotate to change GAIN from 5 to 100 e Rotate knob in in steps of 5 Press and hold to ALL METAL Mode to activate PINPOINT feature change THRESHOLD from RL 40 to 40 In DISC Mode Change setting of active menu option In ALL METAL Mode Change Ground Balance setting from 0 to 99 9 12 CONTROL PANEL y y p y ED ES EOS Vem Vem LILILI SIGNALFe30 TARGET IDGND PHASE DISCGND BAL CONTROL KNOBS 1 OFF ON GAIN a Click right to turn on Click left to turn off b Turning the knob clockwise increases the detector s sensitivity the higher the sensitivity the deeper targets will be detected and the more likely the detector will be to detect very small targets c As you turn the knob notice that the GAIN value at the bottom right of the screen displays your current sensitivity se
16. small accessories 103693000C Fisher Camo Backpack Large camouflage and black with Fisher logo FCBACKPACK Fisher Camo Pouch Camo pouch with two inside pockets belt included PCH F Fisher Stereo Deluxe Headphones gt Adjustable single volume control 1 4 jack jack aluminum cones and coiled cord 9720971000 Stereo Headphones Use with Fisher metal detectors Lightweight and adjustable with true stereo sound adjustable FISHERZZ volume 1 4 jack with 1 8 adaptor 4 cable 9720950000 Metal Sand Scoop Is Large galvanized metal scoop with filtering holes Strong Rubberized grip SAND SCOOP Sy wage Gold Pick DR Tempered steel head is 10 long edge is 3 1 4 wide overall length 19 Durable fiberglass pe handle rubberized grip and super magnet attached to the head GOLDPICK 2 Lesche Knife Made 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 Fishere Coffee Mug 1607 stainless steel and plastic FMUG Fisher T Shirt 100 cotton with Fisher Logo Sizes S M LG XL amp XXL FTSHIRT Replacement Accessory Searchcoils 11 DD Elliptical Open Accessory Coil 77CO L GB 10
17. the power line Many sources of EMI are intermittent You may find that an area which is difficult to search at one time of day may be easier after 5 PM or on weekends Power lines are usually quietest late at night and on weekend mornings Small searchcoils usually pick up less EMI than larger searchcoils On a site with severe electrical interference a small searchcoil is often a better choice than a large one Distinguishing Electromagnetic Interference from other problems EMI will often vary as you walk around from place to place and it will also vary with changes in the orientation of the searchcoil This is almost never the case if there is 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 noise to start or stop the problem could be a defective searchcoil Also a defective searchcoil often causes noise of a more intermittent nature than electrical interference The second most common cause is a loose searchcoil connector The noise from a loose connector will usually be very erratic or intermittent in nature Try unplugging the searchcoil and then reconnecting it to ensure the connector is firmly installed lf you use a searchcoil cover dirt or water can accumulate inside it and movement of those materials can cause false signals while sweeping the searchcoil Sear
18. COMPUTERIZED GROUND BALANCING 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 Rotate the THRESHOLD control knob to the point where you hear a slight background hum 4 Sweep searchcoil across the ground to find a clear patch of ground with no metal present 5 Press and hold the Ground Grab COMPUTERIZED GROUND BALANCING GG touch pad and pump searchcoil over the clean ground See illustration above 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 GRAB button while still pumping the searchcoil Note that the audio response to the ground changed and Evened Out when you released the button Also note that the GND BAL value changed After balancing you can hunt in ALL METAL or return to Disc Mode The most accurate GND PHASE value is the value displayed when pumping the searchcoil over the ground in an area free of metal Ground Balancing continued on next page 23 GROUND BALANCING Understanding ground conditions assists the user in setting up the machine knowing when to readjust ground balance and in understanding the responses of the machine while searching This detector displays two kinds of ground data 1 The type of mineralization which affects where the ground phase should be set This is GND PHASE 2 The amount of
19. DD Elliptical Closed Accessory Coil 70CO LDD FRL 5 DD Round Closed Replacement Coil 5CO L GBUG Coil Covers Specially made to protect your coil from abrasion and damage 11 DD Coil Cover COVER 11DD 10 Biaxial Accessory Coil Cover 202319000 5 DD Coil Cover SCOVER BLK Rain Cover A Specially designed to protect your detector from dirt and water RAINCOV GB Gold Gold Kit Deluxe Kit Hardrock Kit Prospecting Kits Lo olDKTe OLDKITS Items Included 10 Y Gold Pan x x x 14 Gold Pan x x x Classifier x x 2 Shatterproof Vials x x x Snuffer Bottle x x x Black Sand Magnet x x Treasure Scoop x x Tweezers x Magnifier x Crevice Tool x Rock Pick x Instruction Booklet x x x Backpack x x FOR COMPLETE DETAILS VISIT WWW FISHERLAB COM T 800 685 5050 Image not shown MF19 071814
20. The signal strength indicator at the bottom left of the screen indicates how large or close the buried metal target is If all bars are illuminated the target is large or close to the searchcoil If one or two bars are illuminated the target is far away or small or both DEPTH Indicator A target s location and size can be verified using the PINPOINT control Press PinPoint to temporarily detect metal without searchcoil motion and a monotone hum While holding the PinPoint button the DEPTH indicator will appear The number beneath DEPTH represents the distance of the object in inches from the searchcoil The Depth scale is calibrated to coin sized objects For objects other than a coin the numeric value is a relative measure of the targets depth AUDIO FEEDBACK When a target is detected the F19 will respond with two types of sound 1 V C O Voltage Controlled Oscillator an audio response with variable pitch and volume 2 ALOW tone beep In Discrimination Mode targets which fall into the zone along the arc whose segments are shaded will be identified with a LOW tone beep and those whose segments are solid with V C O As the user sets the discrimination level with the and lt buttons he is determining which targets will be eliminated All targets audio responses in All Metal Mode will be V C O V C O Voltage Controlled Oscillator is an audio response which provides a good feel for the target Th
21. chcoil covers must be periodically removed and cleaned 32 SEARCH TECHNIQUES Target Verification After detecting a target do the following 1 Walk around the target in a circle 2 While circling the target continue sweeping the searchcoil across the target 3 Sweep once every 30 or 40 of the circle If the tone does not change and the Target ID value is consistent as you circle the target you can be highly confident of the targets identification lf the tone or Target ID changes as you circle the target you may SEARCHCOIL MOVEMENT have multiple targets or an When swinging the searchcoil irregularly shaped object be careful to keep it level with the If the tone completely ground about 1 2 inch from the sur disappears at different angles the ls Never swing the searchcoll ike a pendulum target may be trash or a low value metal lf you are new to the hobby dig all targets With practice in the field you will soon be able to correlate audible and visual target feedback with certain 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 33 TARGET PINPOINTING After you have identified a target using Discrimination Mode
22. chcoil must be in motion for objects to be detected Ground Grab COMPUTERIZED GROUND BALANCING Naturally occurring minerals in soil look like metal to a metal detector so you want to cancel out this mineral signal coming from the ground and only detect the signal from metal objects in the ground So before using your detector set it in All Metal Mode and perform the automatic ground balancing procedure Press and hold the GG COMPUTERIZED GROUND BALANCING button while pumping the searchcoil up and down over the ground Release the button when the sound evens out The GND BAL number on the bottom right of the screen is the detector s internal setting which cancels out the minerals in the 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 Seiting the Controls As you adjust any of the controls notice that the values on the bottom right of the display indicate the settings of the value you are changing If you are new to metal detecting start with the GAIN and THRESHOLD controls at a low enough setting that you do not hear too many unwanted sounds like warble or a loud hum Set the GAIN at the 12 00 position or less Then set the THRESHOLD to a position where you hear a very slight background hum or if you prefer position the knob just left of that position to a setting where the
23. e stronger the target signal the higher the volume and the higher the audio pitch Very weak signals will have the faintest volume and lowest pitch For this reason the use of headphones is always recommended for detecting the smaller and deeper targets 2 DIGIT TARGET INDICATOR In Discrimination Mode the 2 digit target indicator in the middle of the screen provides a specific target value to help identify buried targets more accurately With practice in the field you will learn to associate target values with the probable identification of buried objects The target value can vary each time the searchcoil passes over the target depending upon the orientation of the object and its distance from the searchcoil As a starting point refer to the table below TARGET Readout The table below lists some common approximate target values With experience in the field you will recognize many types of metal objects by their numeric value OBJECT TARGET ID foil from gum wrapper 47 48 U S nickel 5 coin typically 58 aluminum pull tab 60 75 aluminum screw cap 70 80 zinc penny dated after 1982 typically 78 aluminum soda pop can 75 85 copper penny clad dime typically 83 U S quarter 25 coin clad typically 85 50 coin modern clad typically 87 old silver dollar coin typically 89 US silver Eagle 1 coin typically 91 Caution The target indications are visual references Many other types of metal can also be r
24. ector again When not adjusting the knobs the GND BAL setting will always appear on the bottom right of the display GND BAL is the detector s internal ground balance setting The detector s default ground balance setting is 82 9 which is the best starting point for achieving the correct setting After you perform the Ground Grab procedure the GND BAL number will change to match your soll You can change the current GND BAL setting by pressing the apor lt buttons See section on Ground Balancing for a more detailed explanation Experienced users often prefer to adjust the ground balance to get a weak audible response when lowering the searchcoil to the ground This is called adjusting for positive response and is achieved by increasing the GND BAL number with the lt p key Target Scale 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 lron 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 the farther to the right In the ground the ID of gold may jump around with each pass of the searc
25. ed to a magnet e Pieces of iron will always be attracted to a magnet e Negative hot rocks will almost always be attracted to a magnet e Positive hot rocks will usually be attracted to a magnet ELECTROMAGNETIC INTERFERENCE EMI You are likely to encounter electromagnetic interference EMI when using your F191M metal detector It is important that you recognize EMI and take appropriate measures to deal with it This will prevent you from giving up on a worthwhile search site or from returning a properly functioning detector for repair Symptoms of Electromagnetic Interference EMI can cause a metal detector to chatter spontaneously to lose sensitivity for no apparent reason or to cause a periodic wobbly audio sound What you hear will depend on what operating mode you are using the detector s settings and the source of the electrical interference The most common manifestation is spontaneous chatter All metal detectors are susceptible to EMI but they vary in what kinds of interference affect them In a given environment some metal detectors may be affected by EMI whereas others may not Common sources of Electromagnetic Interference Common sources of EMI include overhead electric power lines underground power lines other metal detectors telephone lines carrying electronic data computer systems electric fences old CRT based televisions cell phones CB and emergency communication radios thunderstorms fluorescent lights meta
26. ent searching set threshold to a negative number and also reduce Gain if necessary Silent searching will result in the loss of some sensitivity TOUCHPAD CONTROLS 1 MENU GG This button has a dual function depending on the detection mode a In DISC Mode this control cycles through menu options The active menu option appears in bold on the display The menu times out after 3 seconds In ALL METAL Mode press and hold the button to activate GROUND GRAB Ground Grab allows you to set the detector s internal ground setting equal to the phase of the ground you are searching over See the section on Ground Balancing for a more thorough explanation of this feature and the reason for using it 2 lt P and lt gt a In Discrimination Mode Sp and lt gt change the setting of the active menu option b In All Metal Mode Spand lt gt provide a manual override to the Ground Balance Setting 3 PINPOINT 14 Press and hold to activate the Pinpoint feature Pinpoint temporarily engages a no motion detection mode Searchcoil motion is not necessary to detect metal Any metal within the searchcoil s detection field will induce a sound Pinpoint is generally used to determine the exact location of a target previously detected in Discrimination Mode OPERATING IN ALL METAL MODE The All Metal Mode is more sensitive than the Discrimination Mode and is used to find all types of metal objects in the ground The sear
27. epresented by a given Target ID 27 GOLD PROSPECTING In the United States gold is commonly found in the western states Alaska and in a few localities in the Appalachians Hillsides are the best areas for gold prospecting using a metal detector because hillsides cannot be cleaned out by panning and dredging the way streams can Also gold on hillsides not far from its source vein tends to be larger and more readily detected than alluvial placer gold which tends to get pounded to pieces and worn away as it rolls along the streambed Even in a good gold producing area detectorists often spend an entire day without finding any gold but will dig bits and pieces of other metal such as birdshot bullets and rusted tin cans etc Another nuisance can be Hot Rocks rocks containing concentrations of iron oxides that sound like metal when passed over with the detector Discrimination is usually ineffective because the loss of sensitivity resulting from discrimination is enough to make the little nuggets invisible ety Because most gold nuggets are tiny and are usually found in soil which is high in iron oxide minerals serious gold prospecting requires a detector with high sensitivity and true ground balanced All Metal operation Set the detector with the sensitivity high enough to hear some noise from ground minerals and learn the language of the sounds you hear Headphones are recommended unless there are safety i
28. g searches The standard 10 elliptical F19 M searchcoil is engineered for target separation and a wide sweep This searchoil is ideal for searching field stubble and forest debris 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 about the 5 DD searchcoil Part 5COIL GBUG MSRP 159 99 Please call 800 685 5050 The Gold Bug Coil operates with the Fisher F19 35 DEVICE SPECIFICATIONS Mechanical S rod with electronics housing on rod 3 piece breakdown construction nonmetallic telescoping lower rod adjustable position Armrest Weight 2 lbs 12 oz 1 25 kg with battery installed Standard searchcoil 10 inch 25 4 cm closed frame elliptical biaxial waterproof Batteries Single 9 volt rectangular alkaline Operating principle VLF induction balance Operating frequency 19 2 kHz crystal controlled Reactive 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 inclusive Discrimination ground suppression Combination of 2 and 3 order methods Target ID ground suppression 3
29. hcoil If searching in All Metal Mode you may want to switch back into Discrimination Mode after finding a target Review the 2 digit Target ID provided in the Discrimination Mode for a more precise target identification 16 OPERATING IN DISCRIMINATION MODE Discrimination is used to eliminate trash metal objects e g nails foil pull tabs from detection The searchcoil must be in motion to detect metal The Discrimination Mode is less sensitive to small and deep objects than the All Metal Mode Ground Grab COMPUTERIZED GROUND BALANCING This feature is not available in Discrimination Mode Your best results will be achieved by first performing the COMPUTERIZED GROUND BALANCING procedure in All Metal Mode The ground balance setting achieved using COMPUTERIZED GROUND BALANCING will carry over into this mode Setting the Controls As you adjust any of the controls notice that the values on the bottom right of the display indicate the settings of the value you are changing GAIN If you are new to metal detecting start with the GAIN at a low enough setting that you do not hear 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 deeper objects can be found and the more sensitive the detector is to very small metal objects The right knob is not used in the Discriminatio
30. he searchcoil is lowered to the ground in PinPoint or All Metal Mode the sound will get louder as the searchcoil approaches the ground The sound will grow quieter as the searchcoil is raised What if anything you will hear in Discrimination Mode depends on the discrimination setting When searching in an All Metal Mode if ground balance is properly set to cancel the ground and you sweep over a positive hot rock the rock will give a zip sound similar to that of a metal object Negative Response If the GND BAL setting is too low a number the response of minerals will be negative When the searchcoil is lowered to the ground in PinPoint or All Metal Mode the machine will be silent The machine will sound off as the searchcoil is lifted away from the ground What if anything you hear in Discrimination Mode depends 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 will not have the sound and feel of a metal object 25 GROUND BALANCING Technical Info Fe O BARGRAPH The Fe O 7 segment bar graph indicates the amount of ground mineralization independent of type expressed as an equivalent volume concentration of magnetite Fe O It updates every second It is sensitive to motion and will give the most accurate readings if you pump the searchcoil up and down several times over the g
31. imination changes the target segments along the arc on the screen will be displayed in one of two states 1 Blank no segments displayed 2 Black segments are solid black az SIGNAL TARGET ID The segments along the arc will remain illuminated in this state as you are pressing or This displays your chosen target discrimination parameter At any time during operation you can view the discrimination settings in one of two 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 be detected 2 Whenever you press por the arc will illuminate and show your current detection parameters The first press of Por will change the discrimination level by one value Discrimination Control continued on next page 21 OPERATING IN DISCRIMINATION MODE When a target is detected the rectangular segments representing the target category are illuminated Here is an example of one possible discrimination setting DISC 20 V BREAK 50 NOTCH not set Values from 21 to 50 Values from 51 to 99 will induce a LOW tone will induce V C O tones Values less Pa than 21 will NOT BE DETECTED o _ This value mit and lower LAS will not be SIGNAL TARGET ID DISC detected This discrimination interface for the F19 M was designed especially for relic hunting Relic hunters want control over what sizes of iron are detected and also con
32. ity to high conductivity coins like a U S quarter this is a result of its specialized design to emphasize sensitivity to smaller lower conductivity metals like relics and gold nuggets The F19 is outfitted with a 10 DD closed elliptical searchcoil as standard equipment since this searchcoil construction is best suited to relic hunting At the trashiest sites you may find the smaller optional 5 DD searchcoil makes pinpointing easier is better suited to penetrate highly mineralized soils and improves target separation TERMINOLOGY The following terms are used throughout the manual and are standard terminology among detectorists RELIC A relic is an object of interest by reason of its age or its association with the past Many relics are made of iron but can also be made of bronze or precious metals N Iron is a common low grade metal that is an undesirable target in certain metal detecting applications Examples of undesirable iron objects are old cans pipes bolts and nails Sometimes the desired target is made of iron Property markers for instance contain iron Valuable relics can also be composed of iron cannon balls old armaments and parts of old structures and vehicles can also be composed of iron FERROUS Metals which are made of or contain iron ELIMINATION Reference to a metal being eliminated means that the detector will not emit a tone nor display a Target ID when a metal object passes through the sea
33. l vapor lamps military aircraft with electronic warfare countermeasures turned on electric motors VLF military communications systems and automobile ignition systems At home in a store or in an urban environment there may be several different sources of interference present simultaneously All metal detectors generate a certain amount of internal electronic noise The F19 is specifically designed to enable you to work into the noise Experienced users striving for maximum depth often adjust the machine to search with a constant audible background 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 light dimmers and auto ignition systems However there has also been a proliferation of VLF UHF wireless communication systems cell phones Bluetooth Wi Fi etc which often affect metal detectors Overall the potential for electromagnetic interference is greater than it was just a few years ago Modern high end metal detectors are a lot more sensitive than older units this also increases your detector s vulnerability to EMI beyond what you may be accustomed to with an older detector Metal detectors are by their nature designed to detect magnetic fields and electric current always produces magnetic fields Coping with Electromagnetic Interference The primary reason metal detectors provide a sensitivity gain and or threshold control
34. lways sound off in the event of signal overload even with the volume set to 0 Because the F19 is so sensitive to even the smallest iron targets the detector incorporates FeTone Adjustable Iron Audio a feature to reduce the volume of iron targets to minimize user fatigue Volume settings 10 20 are available to control the volume level of iron targets As you increase volume from 10 to 20 iron volume changes from silent to maximum Note that depending on the V BREAK setting iron targets may 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 is maximum volume Volume control applies only to motion target detection Volume changes do not affect Pinpoint volume Table describes ferrous and nonferrous volume at each setting Volume Volume Setting Nonferrous Ferrous Setting Nonferrous Ferrous 1 1 1 11 10 1 2 2 2 12 10 2 3 3 3 13 10 3 4 4 4 14 10 4 5 5 5 15 10 5 6 6 6 16 10 6 7 7 7 17 10 7 8 8 8 18 10 8 9 9 9 19 10 9 10 10 0 20 10 10 Setting Memory When detector is powered OFF settings are saved except for the ground setting and backlight level When detector powers ON ground is preset to 82 9 and backlight is always OFF How to preset to factory default settings if desired e Power detector OFF e Set right knob
35. mineralization the greater the amount of mineralization the greater the loss of detection depth amp ID accuracy this loss is more pronounced in Discrimination Mode This is Fe Q The goal of ground balancing is to equate the GND BAL number to the PHASE number PHASE is the measurement of the ground GND BAL is the detector s internal setting which calibrates the detector to 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 PHASE in a perfectly balanced scenario After pumping and releasing Ground Grab COMPUTERIZED GROUND BALANCING GG the exact measurement of the ground will be transferred to the GND BAL setting The two digit PHASE number displayed on the screen indicates the type of ground mineralization Some typical ground mineralization types are 24 0 10 Wet salt and alkali 5 25 Metallic iron Very few soils in this range You are probably over metal 26 39 Very few soils in this range occasionally some saltwater beaches 40 75 Red yellow and brown iron bearing clay minerals 75 95 Magnetite and other black iron minerals 96 99 Values over 95 are generally an indication of a searchcoil or electronics defect or out of calibration condition Ground Balancing continued on next page GROUND BALANCING The goal of the Ground Balancing procedure is to eliminate the sound as the sea
36. n repositioning the 2 piece armrest Users with shorter arms may find the armrest more comfortable in the forward position In order to move the armrest backward the plastic plug must be removed from the aluminum tube Armrest Strap Some users prefer to use the strap when swinging the detector vigorously in order to hold the detector securely against the arm The detector can always be used without the strap with no compromise to detector balance and stability under most conditions pa A M SS Arm Strap Hand grip S Rod OS NN ayy 1 4 Headphone Jack LS Velcro Strap Silver Button Middle Stem Searchcoil Cable T A Locking e Collar Velcro Strap knurled knob Searchcoil ASSEMBLY Caution Forcing in MIDDLE STEM with CAM LOCK raised may form a burr on cam lock If this happens remove burr with knife to allow insertion Assembly is easy and requires no tools Position S Rod upright O Rotate the LOCKING COLLAR fully in the counterclockwise direction S ROD Insert your finger inside the tube and make sure the INTERNAL CAM LOCK is flush with the inside of the tube insert the MIDDLE STEM into the S ROD with the SILVER BUTTON pointed upward 5 Rotate the MIDDLE STEM until the SILVER BUTTON snaps into the hole Twist the LOCKING COLLAR fully in the clockwise direction until it locks Repeat this
37. n Mode Click the right knob 100 counterclockwise If you turn the knob to the right you will leave Discrimination Mode entering All Metal Mode The Menu is located on the right side of the screen During Discrimination operation the Menu is inactive during All Metal operation Menu is not available Use to select a Menu option Use Pand gt to modify the setting of the selected Menu option Sand change the menu settings When the menu is not visible ar and change the DISC setting it is not necessary to access the menu to change DISC during operation Menu options are Backlight WE Available setting from 0 to 5 This option controls the brightness of the display backlight When the backlight is on AX is illuminated In daylight the backlight can be turned on but will not be visible draining the batteries So be sure AR is not illuminated if backlight illumination is not required Operating in Discrimination Mode continued on next page 17 OPERATING IN DISCRIMINATION MODE Volume Use or to adjust the volume setting when the VOLUME menu option is highlighted The default volume setting is 7 Press to increase speaker volume Maximum volume is at setting 20 Press lt gt 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 as normal but the detector will not emit a sound when targets are detected The overload volume signal will a
38. of ground minerals present You therefore want to calibrate the detector to the specific ground conditions where you are hunting The detector incorporates both automated and manual ground balancing features which will eliminate false signals from most types of soils To maximize the detector s target identification accuracy and depth of detection use the GROUND GRAB COMPUTERIZED GROUND BALANCING function to calibrate the detector to the ground where you are searching See the section on GROUND BALANCING for details The Basics continued on next page THE BASICS OF METAL DETECTING 2 Trash If searching for coins you want to ignore items like aluminum foil nails and pull tabs These undesirable items are generally identified toward the lower end 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 unwanted metals from detection by using the DISCRIMINATION feature 3 Identifying Buried Objects Different types of metals are classified along the arc at the top of the screen on a 1 99 scale from left to right A 2 digit numerical reading is also provided in the middle of the display for more precise target identification in Discrimination Mode 4 Size and Depth of Buried Objects When using the detector in the motion DISC Mode the relative depth of an object is displayed to the left of the display over the SIGNAL strength indicator A more accurate depth reading
39. olume level of ferrous targets can be lowered separate from the volume level of non ferrous targets allowing desired targets to be heard much easier The fine tune adjustable Notch Width can be used to target specific unwanted items such as shell casings or bottle caps and the enhanced V Break our Variable Tone Breakpoint allows the user to further customize the detector s settings to get unique audio on specific Target ID ranges Combined the Notch Width and V Break features create endless variations for fine tuning the detector to meet exact hunting needs An adjustable back light on the display allows for hunting in low light conditions 29 HOT ROCKS A hot rock is a rock which causes the metal detector to sound off because the rock contains iron minerals They come in two basic types Negative hot rocks also called cold rocks are usually magnetite or contain magnetite and give a negative response because their ground balance value is a higher number than the soil they are found in They tend to be dark in color usually black and usually heavy In some cases they will have rust stains They are usually attracted to a magnet and for this reason gold prospectors always carry a magnet the ultimate ferrous nonferrous discriminator In All Metal Mode negative hot rocks produce a boing sound rather than the zip sound of a metallic target recognize the difference and you will learn to ignore them As the searchcoil passes ove
40. ones with a mono plug will not work Using headphones extends battery life and also prevents the sounds from bothering bystanders 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 are often very small so closely monitoring changes in sound using headphones will improve your gold prospecting results For safety reasons do not use headphones near traffic or where other dangers are present This device is to be used with interconnecting cables headphone cables shorter than three meters ten feet THE BASICS OF METAL DETECTING A hobby metal detector is intended for locating buried metal objects When searching for metals underground or on the surface you have the following challenges 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 Estimating the size and depth of objects to facilitate digging them up 5 Eliminating the effects of electromagnetic interference from other electronic devices Your F19 metal detector is designed with these points in mind 1 10 Ground Minerals All soils contain minerals Signals from ground minerals can interfere with the signals from metal objects you want to find All soils differ and can differ greatly in the type and amount
41. oughout most of its useful charge But as soon as it drains to the 1 segment level it will then lose its charge very rapidly QUICK START DEMONSTRATION I Supplies Needed e a Nail a Zinc Penny dated after 1982 e a Nickel a Quarter ll Position the Detector a Place the detector on a table with the searchcoil hanging over the edge Or better have a friend hold the detector with the searchcoil off the ground b Keep the searchcoil away from walls floors and metal objects Remove watches rings and jewelry d Turn off fluorescent lights appliances and cell phones whose electromagnetic emissions may cause interference e Pivot the searchcoil back lll Click on power with the left knob Set the Gain at the 12 00 position for this demonstration IV Click the right knob to the left to the DISC setting V Press until VOLUME 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 er Use Sp and to change volume as you wave nail over MODE searchcoil 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 4p repeatedly while continuing to wave the nail The nail will be discriminated out The Target ID at which it is eliminated depends on the size
42. r a hot rock this boing sound or negative response is quite distinctive To hear this response you must be properly Ground Balanced and in All Metal Mode with an audible threshold hum First as the center of the searchcoil passes over the negative hot rock the detector will go quite the threshold hum momentarily silences Then passing beyond the negative hot rock you hear the boing sound As you pass the searchcoil back and forth over a negative hot rock it will be impossible to pinpoint and will seem as if it moves around Positive hot rocks are iron bearing rocks which have been oxidized by natural weathering processes so that their GND BAL value is a number lower than the soil they are found in They are often small right on the Surface sound just like a gold nugget and are common in many gold prospecting 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 fireplace or a campfire will often be hot rocks The discriminator will usually eliminate them without difficulty if widely scattered but if there is a large concentration of them the discriminator may not quiet them all In that case you can revert to the rule of thumb don t dig non repeatable signals Remember to always carry a magnet to help discriminate gold from hot rocks and iron 30 Gold will not be attract
43. rchcoil is being pumped over the ground In some soils the sound is not completely eliminated After balancing to ground with Ground Grab COMPUTERIZED GROUND BALANCING GG some users may want to further adjust the ground balance setting manually To manually adjust ground balance 1 Operate in ALL METAL Mode 2 Pump searchcoil up and down over the ground as in the COMPUTERIZED GROUND BALANCING procedure 3 Press Spor while pumping lf the ground balance adjustment is incorrect there will be a difference in the sound as the searchcoil is either moving toward or away from the ground It sounds like you are either pulling the sound out of the ground or pushing the sound into the ground If the sound is louder as you raise the searchcoil increase the ground balance setting elf the sound is louder as you lower the searchcoil reduce the ground balance setting NOTE Experienced users often prefer to adjust the ground balance to get a weak but audible response when lowering the searchcoil This is called adjusting for positive response POSITIVE AND NEGATIVE RESPONSE The purpose of ground balancing is to adjust the metal detector to ignore ground minerals If the setting is incorrect ground minerals will give either a positive or a negative response depending on which direction the adjustment is off Positive Response If the GND BAL setting is too high a number the response of minerals will be positive This means that when t
44. rchcoil s detection field DISCRIMINATION When the detector emits different tones for different types of metals and when the detector eliminates certain metals we refer to this as the detector discriminating among different types of metals Discrimination is an important feature of professional metal detectors Discrimination allows the user to ignore trash and otherwise undesirable objects PINPOINTING Pinpointing is the process of finding the exact location of a buried object Long buried metals can appear exactly like the surrounding soil and can therefore be very hard to isolate from the soil Meaning voltage controlled oscillator the V C O audio method causes both 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 the faintest volume and the lowest pitch Larger objects and those closer to the searchcoil will induce a higher volume and higher pitch sound GROUND BALANCING Ground Balancing is the ability of the detector to ignore or see through the earth s naturally occurring minerals and only sound a tone when a metal object is detected This detector incorporates proprietary circuitry to eliminate false signals from many mineralized soils ASSEMBLY Adjusting the Armrest The armrest may be moved forward or backward by removing the single screw and nut and the
45. round The presence of metal or hot rocks will cause the readings to be inaccurate If you stop moving the searchcoil the bar graph will go blank INDICATION RELATIVE Fe O SUSCEPTIBILITY MINERALIZATION 7 Bars High over 1 over 2 500 2 to 6 Bars Medium 026 1 0 61 2 500 1 Bar Very Low 0 006 025 15 60 None less than 006 less than 15 Magnetic susceptibility is expressed in micro cgs units In a saltwater environment in 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 the signal from the soil may saturate or overload the circuitry This will not harm the detector but the machine will not be usable in that condition The solution is to hold the searchcoil several inches above the soil surface so it is not seeing as much dirt By listening and watching you will know how high you need to hold the searchcoil in order to avoid overload The highest magnetic susceptibilities are usually found in soils developed over igneous rocks in alluvial black sand streaks on beaches and in red clay soils of humid climates The lowest magnetic susceptibilities are usually found in white beach sands of tropical and subtropical regions and soils developed over limestone 26 TARGET DISPLAY and AUDIO SIGNAL Indicator The lower left bargraph designates SIGNAL strength only when operating in Discrimination Mode
46. ry 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 and are prone to leakage Rechargeable batteries can also be used lf you wish to use rechargeable batteries we recommend using a Nickel 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 battery compartment BATTERY LIFE Expect about 15 to 20 hours of life from a 9 volt alkaline battery without use of backlight Backlight increases power consumption and decreases battery life with significant power drain at maximum brightness Rechargeable batteries can provide up to 8 hours of usage per charge SPEAKER VOLUME AND BATTERY CHARGE You may notice the speaker volume drop when only one battery segment is illuminated With one segment flashing low speaker volume will be very apparent BATTERY INDICATOR The 3 segment battery indicator has 4 stages of indication These indications are accurate for a 9 volt alkaline battery Segments Illuminated Battery Voltage 3 segments more than 8 4 volts 2 segments more than 7 5 volts 1 segment more than 6 8 volts 1 segment flashing less than 6 8 volts After the 1st segment begins flashing expect the detector to shut off within 10 minutes A rechargeable battery will usually illuminate two to three segments thr
47. ssues for instance rattlesnakes Move the searchcoil slowly and deliberately carefully controlling its height above the ground to minimize noise from iron minerals in the soil If you hear ground noise the Ground Balance setting could be off so perform the ground balancing procedure again The ground geology typically associated with the presence of gold will tend to change over very short distances The FesO bar graph indicates the amount of iron mineralization in the soil In most gold fields especially alluvial deposits gold tends to be associated with iron minerals especially magnetite black sand Therefore to maximize gold recovery concentrate on areas where the bar graph indicates higher amounts of iron mineralization ai Gold Prospecting continued on next page RELIC HUNTING Searching for coins and relics at Civil War or ghost town sites often means detecting in heavy concentrations of iron and dealing with crop stubble or forest ground clutter The F19 can handle the toughest ground mineralization capable of ground balancing all the way to salt With its fast retune speed and biaxial searchcoil the F19 creates superb target separation with impressive depth The 10 elliptical coil is ideal for working between brush rocks and debris commonly found at old abandoned sites An expanded 40 point iron ID range helps differentiate between larger iron objects and smaller nails and pieces With FeTone adjustable iron audio the v
48. the backyard at the shoreline in the mountains or fields afar your investment will let you experience the excitement of searching for yet uncovered treasures and give you hours and years of outdoor enjoyment Out on your own or with a group places to use your F19 M are unlimited as buried treasures can be as near as your doorstep or as far as you wish to travel This manual has been written to help you get optimal use of your detector so we hope you will read it thoroughly before your first outing and will also refer back to this manual from time to time to reinforce features and methods as you become more proficient in the field Happy Hunting from Fisher Research Labs Introduction fo the F19 The new F19 js unique among relic hunting detectors for its versatile function as an all purpose treasure detector and also its high sensitivity to small gold nuggets The controls menu options and features are tailored to relic hunting including a sophisticated ground balancing system separate control over signal gain and threshold and a unique discrimination control system These features also make for a great gold prospecting detector especially when the F19 is outfitted with the optional 5 DD searchcoil While the F19 makes for a highly competent coinshooting detector its user interface and features are not specifically designed for this purpose As a coin shooter you will notice that the F19 exhibits slightly lower sensitiv
49. tings from 0 80 All targets with ID s less than or equal to the Disc 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 the detector does not allow highly conductive targets like silver to be discriminated out Press lt gt to eliminate unwanted metals from detection Each time you press cp the Disc value at the bottom right of the display will increment by one Press and hold 4 to increase the Discrimination level rapidly see the Target Identification section of the manual for a detailed description of this function sections of the arc with no indication represent metals completely eliminated from detection Press lt to detect metals which were previously eliminated from detection Operating in Discrimination Mode continued on next page 19 OPERATING IN DISCRIMINATION MODE Unwanted Noise Read the section on Electromagnetic Interference This is a highly sensitive device It is intended for use outdoors Indoor operation will subject it to electrical interference from 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 quieter than when holding the detector still Sweeping the Searchcoil As 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 PINPOINT Press
50. to DISC e Press and hold Turn ON while holding ES e The menu options will flash e Release B detector turns on and all settings are restored to the factory defaults Operating in Discrimination Mode continued on next page 18 OPERATING IN DISCRIMINATION MODE V Break Change audio for certain targets V Break is a feature that allows the user to change the audio response of certain targets V Break allows the user to program the detector so that any target 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 rejected using the discrimination or notch functions Notch Width As you press Spor lt gt when adjusting the Notch Width setting the blank area you see across the Conductivity Arc represents targets that will not be detected This blank area is the notch window Notch Width allows you to set the size or width of this notch window which can be used to notch out or notch in targets from detection the maximum width of the notch window is 20 Notch After setting the width of the notch window it can be moved around using NOTCH The setting you adjust corresponds to the left most edge of the notch window Disc Available set
51. trol over which targets are detected with a low tone Target values of 39 or less are ferrous Suggestion Try changing the settings watch the screen and pass objects over the searchcoil at each setting It will quickly become obvious how these controls work 22 GROUND BALANCING What is Ground Balancing Why do need to Ground Balance All soils contain minerals Signals from ground minerals are often tens or hundreds of times stronger than a buried metal object The magnetism of iron minerals found in nearly all soils causes one type of interfering signal Dissolved mineral salts found in some soils are 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 the soil Pumping coil Ground Balancing is the process by which the metal to ground detector cancels the unwanted signals coming from the balance with ground minerals while still detecting the signals from pei ee buried metal objects This is accomplished by UP GROUND matching the detector s ground balance setting to BALANCING the phase of the ground signal button When the detector is calibrated to the soil the result will be deeper target detection quieter DOWN operation and more accurate target identification Y How to Ground Balance your detector Ground Balancing procedure with the Ground Grab
52. tting Sensitivity in DISC Mode The left knob is labeled GAIN and in DISCRIMINATION Mode it alone controls the sensitivity of the detector GAIN in ALL METAL Mode In All Metal Mode GAIN increases as you rotate the knob clockwise THRESHOLD is controlled independently using the right knob 2 DISC ALL METAL THRESHOLD a Click knob to the far left DISC position and the detector enters DISCRIMINATION 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 METAL Mode the Threshold control can be used in two ways Control knobs continued on next page 13 CONTROL PANEL GAIN 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 increase the Gain To minimize the weakest signals reduce the Gain Threshold controls the detector s audio level Positive threshold values increases the audio response of weak target signals Negative threshold values suppress sensitivity For searching at maximum sensitivity first set the Gain at a low level Then set threshold into the positive region with a comfortable background hum volume level Then increase Gain to a comfortable level free of chatter Increase Gain to a slight amount of chatter if you can tolerate the chatter while searching For sil
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