White’s Electronics GM24k Advanced Manual Download Page 31

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White’s Electronics, Inc.

1011 Pleasant Valley Road

Sweet Home, OR 97386 USA

Distribution: 1-800-547-6911

Factory: 1-541-367-6121

FAX: 1-541-367-2968

Web Site: http://www.whiteselectronics.com

©White’s Electronics, Inc.

P/N 621-xxxx

Printed in USA

Rev. 1/2018

Summary of Contents for GM24k

Page 1: ...GOLDMASTER 24k ADVANCED GUIDE White s Electronics Inc 1011 Pleasant Valley Road Sweet Home OR 97386 USA whiteselectronics com White s Electronics Inc ...

Page 2: ... biggest challenge we face in our search for gold That s why the Goldmaster 24k features an all new ground tracking system we call XGB Xtreme Ground Balance This system works with multiple ground points to ensure stable operation The GM24k also features Iron Hot Rock cancel lation in both audio modes expanding the ground range even more for quiet operation in the most challenging ground When the n...

Page 3: ...nt 8 Sensitivity Adjustment cont d 9 Volume Threshold Adjustment 10 Hot Rocks 11 Variable SAT Speed Control 11 VSAT Adjustment 11 Target ID 12 Iron Cancel 13 Iron Cancel Adjustment 13 Ground Balance XGB 14 TracLock Ground Grab 15 Ground Scan 15 Chapter 5 Searching 16 Pinpoint Technique 16 Headphones 17 Field Use Tuning Tips 18 Field Use Tuning Tips cont d 20 Field Use Tuning Tips cont d 22 Chapter...

Page 4: ...4k 1 Detector s rod body 2 Middle rod 3 Lower fiber rod 4 Coil hardware washers nut bolt 5 6x10 DD Coil 6 6 Concentric Coil 7 8x AA holder batteries included 8 Rechargeable battery with charger 9 Cable straps or clips 10 Arm cup strap 11 Arm cup foam 12 GM24k Quick Start Manual 6 7 2 ...

Page 5: ... ring to secure To secure cable wrap velcro cable retainers around rod and cable one near the search coil and one near the handle 5 Grip the instrument by the handle with your arm in the elbow cup with strap secure and sweep the coil over the floor If the instrument fit feels uncomfortable adjust the elbow cup by removing and repositioning the bolt and install ing in one of the optional positions ...

Page 6: ...f the battery box releasing the catch and hinging open the door 5 Battery insertion requires a similar amount of force to loading a magazine into a pistol for full engagement 4 Using the Standard Battery Holder 1 Slide open the battery holder lid decal side of battery holder by applying gentle upward pressure on the tab of the door so that it un locks Slide the door away from the battery box expos...

Page 7: ...er voltages it is common for fully charged Ni cad or other batteries to initially read as less than 12 volts just under full bars on your display This is a result of the chemistry of the cells and will not impact performance Using the Battery Charger on Quick Charge Setting Charging Hours Battery Voltage Reading Battery Meter The battery icon displays the following voltag es 4 bars 11 5 volts or h...

Page 8: ...Mode SAT Volume Threshold Iron Cancel Disc LO HI Visual Target ID Ground strength in Ground Scan mode Backlight On TracLock On Sensitivity Power On Off Backlight TracLock Ground Scan Sensitivity Adjust other settings Ground Grab Exit Setting Selection Pinpoint non motion GM24k Interface 6 NOTE Regular text button TAP Italic text button HOLD ...

Page 9: ...ggets Turn the GM24k on by pressing the POWER button Set the VOLUME to your preference tap Speaker icon use Up and Down buttons Set the THRESHOLD to a faint hum hold Speaker icon use Up and Down buttons For silent search turn this all the way down Set the SENSITIVITY to a level that ensures smooth operation Up and Down buttons Set the SAT to get a stable threshold hold Music button use Up and Down...

Page 10: ...alert Reduce the SENSITIVITY till the overload warn ing ceases On occasion while searching you might go over a very large or very shallow target This will result in the same type of behavior Lift ing the coil higher may reveal some information on the target You still might want to dig it up Sensitivity Adjustment 1 The UP and DOWN buttons control the SENSITIVITY Each press on the UP button increas...

Page 11: ...speed will main tain smooth threshold it will also allow the search coil to get clear off of the target with each pass thus insuring that the GMT sees ground as well as target This is essential for the accurate operation of Target ID Sensitivity Adjustment cont d 5 The object of increasing the SENSITIVITY is to get the maximum available depth from the detector WITH OUT causing the overload message...

Page 12: ...but in general the best range of target sounds will be available with a high volume and low thresh old At volume levels 9 and 10 you will see b1 and b2 on the display as these two levels enable consecutive audio boosts for low signals External Speaker or Headphones Volume Threshold Adjustment There are advantages to running your GM24k with headphones Battery life will be increased and it will be m...

Page 13: ...Setting is 1 medium appropriate for mild to moderate ground mineralization When you encounter fast changes in ground mineralization or deeper larger hot rocks you may either get false signals positive ground or lapses in the THRESHOLD hum negative ground Increasing the V SAT control setting to 2 will speed up the auto adjustment of the THRESHOLD hum and reduce this interfer ence At the same time y...

Page 14: ...due to the many different sizes shapes and consistencies of gold nuggets When in doubt dig it out Audio Mode Tapping the Music button toggles between two different audio modes With the Music Icon ON the GM24k will produce 2 distinct beeps one high and one low for different types of targets The higher tone has a better chance of being a non ferrous target gold aluminum silver brass etc and the lowe...

Page 15: ... Zip mode tap the Nail Icon This will engage the Iron Cancel feature at the default setting You can adjust this setting up or down by holding the Nail Icon then using the Up and Down buttons to set the discrimination range Best practice is to only use what is required for smooth operation of the GM24k as too high of an Iron Cancel setting will decrease the detector s sensi tivity to small gold nug...

Page 16: ... a wider variety of ground conditions with more stable operation and less ground noise When coupled with the Iron Cancel and SAT settings you have a truly versatile set of tools to combat nasty ground XGB is the default setting on the GM24k and recommended for most users in most conditions It has the ability to track a wide range of ground from ferrous to alkali and features an increased tracking ...

Page 17: ...king over More ferrous soils tend to produce a larger ground number whereas more alkali soils will produce a smaller number Ground Grab will also display the ground phase when the GM24k is in XGB automatic mode but does not interrupt the automatic tracking processes Ground Scan Ground Scan is enabled by holding the LOCK button The display will change to display the ground strength on the top bar i...

Page 18: ... the Goldmaster 24k also features an all new non motion pinpoint mode This is engaged by holding the cross hairs button large button in the mid dle of the keypad With this button held down the detector will sound off on targets whether the search coil is in motion or not Non motion pinpoint mode disengages the XGB ground tracking Iron Cancel and SAT so in very challenging conditions you may find t...

Page 19: ...n snake and bear country are available on the market Higher impedance headphones 60 Ohms or greater give the most sensitivity and are better for hearing the tiny targets most likely to be heard while prospecting Properly balanced impedance is important as well as low distortion Headphone Volume Since the GM24k has a volume control accessed by tapping the speaker button and adjusting the audio volu...

Page 20: ... a nail or oblong piece of iron laying horizon tally will produce a double beep A good target is considered anything that is not IRON You want to detect lead brass copper aluminum and silver 18 Chapter 4 GMT Searching Any of these metals can simulate the sound of a gold nugget and must be dug Keep a particular lookout for the tiny lead bird shot so common in mining areas If you are detecting these...

Page 21: ... coil sweep This is a result of the ground phase shifting rapidly under the coil The first step you should take is to increase your SAT set ting by holding the Music Note button and then tapping the Up button to set the SAT to a higher setting This will allow the detector to adjust more quickly to the rapid ground changes As a last resort enable the Iron Cancel feature the crossed out nail button ...

Page 22: ... why they are so hard to differentiate The XGB will track some of these 20 out automatically Using a higher SAT setting can also decrease your GM24k s response to these positive hot rocks Using a Double D coil on the GM24k will allow the detector to operate amongst hot rocks better than a concentric And as a last resort the Iron Cancel feature should all but silence any remaining hot rocks Wet alk...

Page 23: ...to use the SAT feature and or reduce the SENSITIVITY control This noisy behavior will make it difficult to recognize a true target possible nugget from pieces of mineral commonly referred to as hot rocks It is not wise to keep a high level of SENSITIV ITY if the detector will not operate smoothly This is a false sense of security Recognizing a true target is the most important part of detect ing T...

Page 24: ...f Iron and Steel objects as non ferrous particularly flat thin steel such as a can lid very 22 large pieces of iron and small solid pieces of iron like heavy washers Because this is a gold detector it was essential to design it so that it would tend to call doubtful targets non ferrous or possible gold In this way eliminating the possibility of mistaking gold for iron Ground Scan mode tips Prospec...

Page 25: ...te for time spent out in the field with a machine Eventually the user and machine click and then there is no stopping them The only way to get to this point is putting in the time to learn not only the features but also the language of the machine Whether your ground is mild strong whether you plan to use the GM24k in conjunction with other gold recovery methods whether you hunt every day or just ...

Page 26: ...ove the battery holder from the instrument and remove the batteries from the holder C Store the instrument indoors in an area where it will be protected from abuse Over the years White s has noted more service repairs and physical damage on units in stor age than those experiencing daily use IV Additional Precautions A Avoid dropping your detector while at tempting to set it down to dig B Avoid us...

Page 27: ...y Road Sweet Home Oregon 97386 Telephone 1 541 367 6121 Fax 1 541 367 6629 E Mail repair whiteselectronics com Before shipping detectors for service A Contact your Dealer There may be a quick simple fix or explanation that will prevent hav ing to send the detector in for service B Double check the obvious such as batteries and try the detector in another area to be sure there is not interference C...

Page 28: ...rd is filled out and returned to the factory address by your dealer soon after original purchase for the purpose of recording this information and keeping you up to date regarding White s ongoing research development The warranty does not cover damage caused by accident misuse neglect alterations modifications unauthorized service or prolonged exposure to corrosive compounds including salt Duratio...

Page 29: ...___________________________________ Comments ______________________________________________________ ________________________________________________________________ ________________________________________________________________ Distributor Authorization Code ____________________________________ Warranty Transfer If for any reason you should sell your GMT prior to the date the warranty expires th...

Page 30: ...tery compartment Purchase Date __________________________ The date on the sales receipt Dealer Name _____________________________________________________________________ Address ___________________________________________________________________ Telephone ________________________________________________________________ Payment method ________________________________________________________________...

Page 31: ...c 1011 Pleasant Valley Road Sweet Home OR 97386 USA Distribution 1 800 547 6911 Factory 1 541 367 6121 FAX 1 541 367 2968 Web Site http www whiteselectronics com White s Electronics Inc P N 621 xxxx Printed in USA Rev 1 2018 ...

Page 32: ...QUICK START ...

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