Fisher F44 User manual

OWNER’S MANUAL
Uses two AA ALKALINE batteries only.
Do not use “Heavy Duty” batteries.
Do not use ordinary Zinc Carbon batteries.
MF44 051915
ACCESSORIES
FOR COMPLETE DETAILS VISIT WWW.FISHERLAB.COM • 1-800-685-5050
Fisher
®
Padded Carry Bag
Rugged double stitched construction. Includes handy
exterior pocket for extra batteries or small accessories.
– 103693000C
Fisher
®
Camo Pouch
Camo pouch with two inside pockets, belt included. – PCH-F
Stereo Headphones
Use with Fisher
®
metal detectors. Lightweight and adjustable with
true stereo sound, adjustable volume, 1/4 jack with 1/8 adaptor,
4’ cable. – 9720950000
Metal Sand Scoop
Large galvanized metal scoop with filtering holes. Strong Rubberized grip.
– SAND SCOOP
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
®
T-Shirt
100% cotton with Fisher
®
Logo. Sizes: S, M, LG, XL & XXL – FTSHIRT
Replacement/Accessory Search Coils
7” Round Elliptical Accessory Coil – 7COIL-RE-F
9” Triangulated Concentric Elliptical Accessory Coil – 9COIL-EE
11” Triangulated Concentric Elliptical Replacement Coil – 11COIL-EE
Coil Covers
Specially made to protect your coil from abrasion and damage.
9” Triangulated Concentric Elliptical Coil Cover– 9COVER-EE
11” Triangulated Concentric Elliptical Coil Cover– 11COVER-EE
Rain Cover
Neoprene protective cover specially made to protect your F11 from weather– COV-F11
Neoprene protective cover specially made to protect your F22 or F44 from weather– COV-F22
Gold
Prospecting Kits

TABLE OF CONTENTS
Congra ula ions!
Congratulations on the purchase of your new Fisher F44™ Metal Detector. The F44 is the result of
many years of software engineering and features the latest advancements in lightweight design and
target accuracy. The F44 can be used with its default modes, or use the Custom mode to create your
own setup. No longer will weather be a force that stops you from enjoying your sport, the F44 is
completely weatherproof. Laugh at the rain. Treasure hunting enthusiasts from around the world were
involved in the development of this revolutionary new detector. 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.
Happy Hunting fr m Fisher Research Labs!
The F44 operates at a frequenc of 7.69 kHz and comes with a 11” triangulated concentric
elliptical searchcoil. The F44 shares searchcoil compatibilit with the F11 and F22.
Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Contents of Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6
Batteries (use alkaline batteries) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Quick-Start Demonstration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
The Basics of Metal Detecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-10
Using the Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Searchcoil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Operation and Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
The Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Depth Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Overload Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13-16
Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Notch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Backlight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Factory Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Pinpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
How to Pinpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Target-ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17-18
4-Tone ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Custom Mode Programmable Tones . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Depth and Target Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19-20
Target Groups and ID Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Target-ID Coin Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Ground Cancelation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21-22
Manual Ground Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22-23
Headphone Jack / Using Headphones . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Characteristics & Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Treasure Hunter's Code of thics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Back Page
2
5-YEAR LIMITED WARRANTY
Register your warranty on-line for a chance to win a
FREE DETECTOR
For details, visit www.fisherlab.com
The F44 metal detector is warranted against defects in materials and workmanship
under normal use for five 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 F44
metal 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 First Texas Products. Shipping
cost to First Texas Products is the responsibility of the consumer.
To return your detector for service, please first contact First Texas Products 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
1465 Henry Brennan Dr.
l Paso, TX 79936
Phone: [phone] 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 to and from the U.S.A.
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 user’s authority to operate this equipment.
This device complies with FCC Part 15 Subpart B Section 15.109 Class B.
Copyright© 2015
All rights reserved, including the right to reproduce this book, or parts thereof, in any form.
Fisher®is a registered trademark of Fisher Research Labs
.fisherlab.com
TREASURE HUNTER’S CODE OF ETHICS:
• Always check Federal, State, Co nty and local laws before searching.
• Respect private property and do not enter private property witho t the owner’s permission.
• Take care to refill all holes and leave no damage.
• Remove and dispose of any and all trash and litter fo nd.
• Appreciate and protect o r inheritance of nat ral reso rces, wildlife and private property.
•
Act as an ambassador for all treas re h nters; se tho ghtf lness, consideration and co rtesy at all times.
• Never destroy historical or archaeological treas res.
• All treas re h nters may be j dged by the example yo set; always cond ct yo rself with
co rtesy and consideration of others.
27

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.
IRON
Iron is a common, low-grade metal that is an undesirable target in certain
metal detecting applications. xamples 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 the detector will not emit
a tone, nor display a Target-ID, when a metal object passes through the
searchcoil'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.
V.C.O.
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 CANCELATION
Ground Cancelation 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. 3
Note: 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 protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate 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 that interference
will not occur in a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Consult the dealer or an experienced radio/TV technician for help.
CE The manufacturer declares that the minimum SD performance criteria is 1) the unit shall not
be permanently damaged and 2) operator intervention is allowed.
This product is RoHS compliant.
This product meets the requirements of Industry Canada: CAN IC S-3 B/NMB-3 B.
26
TROUBLESHOOTING GUIDE
SYMPTOM CAUSE SOLUTION
Detector chatters, • Using detector • Use detector
beeps erratically indoors outdoors only
or has low • Using detector near • Move away
sensitivity power lines
from power lines
• Using 2 detectors in • Keep 2 detectors
close proximity at least 6 meters
(20’) apart
• nvironmental • Reduce sensitivity
electromagnetic until erratic
interference signals cease
Low speaker •
Discharged battery • Replace battery
volume • Wrong type of • Use alkaline
battery batteries
Display does not lock • Multiple targets • Sweep coil at
on to one Target-ID present different angles
or detector emits • Highly mineralized • Move to a
multiple tones soil different area
• Sensitivity set
too high • Reduce sensitivity
No power, no sounds • Dead battery • Replace batteries
• Cable not • Check connections
connected securely
Do not mix old and new batteries. Use alkaline batteries.
Do not mix alkaline, standard (zinc-carbon), or
rechargeable (NiCad, NiMH, etc.) batteries.

CONTENTS OF BOX
The followin detector components are in the box:
Handgrip
Velcro
Velcro
PP
MENUMODE
GG
4
3. Triangulated Concentric
lliptical Searchcoil
4. Middle
Stem
5. Lower Stem
with Bolt &
Knurled Knob
attachment
and washers
6. S-Rod
2. Armrest Assembly with
Screw and Lock-Nut
Headphone
Jack Cover
25
NOTES
O-Ring
One installed on coil connector
and a replacement O-Ring included
in manual bag.
1. Control Housing
with 2 screws

ASSEMBLY
24
1. This detector comes with a waterproof searchcoil. The searchcoil can be
completely submerged into water. The control housing is weatherproof
but cannot be submerged in water.
2. BURI D UTILITY LIN S. This hobby metal detector is not designed to
locate buried pipes or cables. First Texas Products manufactures a
complete line of pipe and cable locators for this application. These are
sophisticated instruments with functionality different from your hobby metal
detector.
3. S V R SOIL CONDITIONS. While this detector has proprietary circuitry
to cancel out minerals naturally occurring in most soil types, it cannot
penetrate the most severe soils and it is not intended for use on wet
sand saltwater beaches. However, it is well-suited for detecting on dry
sand. Saltwater is highly conductive and requires a more sophisticated
type of detector. First Texas Products offers such types of detectors. Other
highly mineralized soils, such as those found in some gold prospecting
sites, may also limit this detector's capability. If the detector tends to
overload, it could indicate you are in an area containing such severe soils.
4. TARG T-ID. The detector's Target-ID system calculates and displays the
most probably identification. Target-ID is affected by soil conditions, the
searchcoil's distance from the target, the length of time the target has been
buried and the target's proximity to other dissimilar targets. Very large
metal objects can overload the detector and may be classified
inaccurately.
5. R DUC S NSITIVITY. The primary purpose of the Sensitivity control is
to allow the operator to reduce the sensitivity of the detector. All
detectorists desire to find objects at maximum depth. However, in today's
environment there is a never-ending variety of devices emitting MI
( lectromagnetic Interference) that can interfere with this detector.
There will be environments where the detector cannot operate at
maximum sensitivity. This is not a defect. If you find yourself in such an
environment, reduce the sensitivity of the detector. Some environments
may have so much MI it is impossible to detect. Both overhead power
lines and buried power lines can interfere with this detector. Power line
capacity may be quite different during certain times of the day. For
instance, peak hours of electrical use that can occur around 6 p.m. can
lead to a lot of MI. If you experience power line interference, try returning
to a given area at a different time of day.
CHARACTERISTICS & LIMITATIONS
Tool Required: #1 Phillips Screwdriver
●
1• Remove the Screw from the Armrest.
• Slide the Armrest over the end
of the S-Rod.
• Attach with Screw and Lock-Nut.
●
2Attach Control Housing with Screws;
install back screw first.
NOTE:
• The Handgrip fits under the Control
Housing.
Handgrip may partially cover one
mounting hole. Peel back
Handgrip to expose the front hole.
•nsure the headphone jack cover
is properly seated before
attaching the control housing.
Handgrip
Searchcoil
Cable
Cable
Plug
O-Ring
S-Rod
Middle
Stem
Velcro Strap
Velcro Strap
Locking
Collar
Locking
Collar
Headphone
Jack
Knurled
Knob
Coil
Washer
Battery
Compartment
(back side)
Armrest
*
Triangulated
Concentric
Elliptical
Waterproof
Searchcoil
Place Headphone
Jack Cover in
recessed pocket
so it is level with
the surface of the
housing and held
in place between
the housing
and S-Rod.
Caution:
Forcing in MIDDL ST M with CAM LOCK raised may
form a burr on cam lock. If this happens, remove burr with
knife to allow insertion.
*Note: Very tall users can purchase the optional
xtended Lower Stem (TUB 5X), for extended reach.
5

6 23
HEADPHONE JACK
This detector has a 1/4” headphone jack. It works with any stereo headphone
(n t included) that has a 1/4” plug. When the headphone jack is connected,
speaker volume is disabled. Using
headphones extends battery life and
prevents the sounds from bothering
bystanders. Headphone use also facilitates
detection of the weakest signals.
For safety reasons, do not use headphones
near traffic or where other dangers are
present. This device is to be used with
interconnecting cables shorter than three
meters.
The headphone jack has a rubber plug that will
help keep foreign material from entering the control
box. To insure it remains weatherproof, do not use
headphones during rain or very wet conditions.
MANUAL GROUND ADJUSTMENT
(Continued)
to be inaccurate. If you stop moving the searchcoil, the bar graph will go blank.
INDICATION % Fe3O4SUSCEPTIBILITY
4 Bars -High 0.4 - 1.6 1,000 - 4,000
3 Bars -Medium 0.1 - 0.4 250 - 1,000
2 Bars -Low 0.025 - 0.1 60 - 250
1 Bars -Very Low 0.006 - .025 15 - 60
None - - less than .006 less than 15
Magnetic susceptibility is expressed in micro-cgs units. In a salt water environment
in the absence of iron minerals, the bar graph indicates relative electrical
conductivity.
In soils with greater than 4,000 micro-cgs units magnetic susceptibility, the
signal from the soil may saturate (“overload”) the circuits. 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 isn’t “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.
●
3Position S-Rod upright.
●
4Rotate the LOCKING COLLAR fully in the counterclockwise direction.
●
5Insert your finger inside the tube and make sure the INT RNAL CAM LOCK
is flush with the inside of the tube.
●
6 Insert the MIDDL ST M into the S-ROD, with the SILV R BUTTON pointed
upward.
●
7Rotate the MIDDL ST M until the SILV R BUTTON locates in the hole.
●
8Twist the LOCKING COLLAR fully in the clockwise direction until it locks.
●
9Repeat this process on the LOW R ST M.
●
10 Using the BOLT and KNURL D KNOB, attach the S ARCHCOIL to the
LOW R ST M.
●
11 Adjust the LOW R ST M to a length that lets you maintain a comfortable upright
posture with your arm relaxed at your side, and the S ARCHCOIL parallel to the
ground in front of you.
●
12 Wind the CABL securely around the ST MS, leaving slack at the bottom.
●
13 Connect CABL 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 it is
very tight. When the Locking Ring is fully engaged over the threaded connector,
it may not cover all of the threads.
ASSEMBLY
(Continued)
S-ROD
LOCKING
COLLAR
INTERNAL
CAM LOCK
SILVE R BUTTON
MIDDLE
STEM
S-ROD MIDDLE STEM
●
4
●
5
●
6
●
6
●
7

722
GROUND CANCELATION
(Continued)
MANUAL GROUND ADJUSTMENT
Ground Balance Error Indicator
When using a metal detector the
Ground Phase conditions can change
from location to location and even within
smaller areas only yards apart.
Performance can suffer if the detector is
not ground balanced properly so it is
important to know when the conditions
have changed.
The Ground Balance rror arrows will
show the user when to rebalance the
detector; the downward pointing arrow
icon will illuminate and blink when the
ground phase condition is lower than the
ground balance setting, and the upward
pointing arrow icon will illuminate and blink when the ground phase condition is
higher than the ground balance setting. When these conditions occur you
should rebalance the detector.
Refer to the GROUND section, (page 14), on how to manually adjust the
detector’s internal Ground setting. After selecting Ground in the Menu
selections, perform the coil pumping described above, and listen to the audio
sounds.
If the Ground setting 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 gets louder as you raise the searchcoil, increase the Ground setting.
• If the sound gets louder as you lower the searchcoil, reduce the Ground setting.
Repeat this process of adjusting until there is no sound as you lower or raise the coil.
NOTE: xperienced users often prefer to adjust the Ground setting to get a
weak but audible response when lowering the searchcoil. This is called
“adjusting for positive response”.
Fe3O4BAR GRAPH
The Fe3O44-segment bar graph indicates the amount of ground mineralization,
independent of type, expressed as an equivalent volume concentration of
magnetite (Fe3O4). 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 ground. The presence of metal or “hot rocks” will cause the readings
DOWN ARROW:
Blinking means
ground phase
value has
dropped below
ground balance
set point.
UP ARROW:
Blinking means
ground phase
value has
increased above
ground balance
set point.
The detector requires two AA batteries.
We recommend ALKALIN batteries
(not included).
Do not use ordinary “Zinc
Carbon” batteries.
Do not use “Heavy Duty” batteries.
Rechargeable batteries can also be
used. If you use rechargeables, we
recommend using a “Nickel Metal
Hydride” rechargeable battery. The
battery compartment is located on
the right side of the Control Housing.
Both batteries should be installed with
the negative terminal down.
Remove battery tube:
1. Slide the battery door off.
2. xtend the handle on the battery tube (with y ur finger r by using the tab
n the battery d r t pry the handle int the extended p siti n)
3. Pull on the handle to remove (d n t use the battery d r tab t pull the tube
ut f the c ntr l h using, as this may cause damage t the battery d r)
To install battery tube:
1. Position the handle on the battery tube in the lowered position.
2. Firmly push down on the battery tube, until the battery tube handle is
flushed with the housing. (The battery tube will nly insert ne way, with the
brass c ntacts facing t wards the display and the hinged side f the handle
t wards the back.)
BATTERY LIFE
xpect 25 to 30 hours of life from 2 AA Alkaline batteries. Rechargeable
batteries provide about 15 hours of usage per charge. Backlight increases
power consumption and decreases battery life, with significant power drain at
maximum brightness.
BATTERY INDICATOR
The battery icon has three segments plus an outline segment. The amount of
battery voltage for two ALKALIN batteries is indicated as follows:
All segments black: >2.8 volts
Right segment grey, other two black: >2.6 volts
Right segment off, other two black: >2.4 volts
Right segment off, mid grey, left black: >2.2 volts
Right and mid segments off, left black: >2.0 volts
Right and mid segments off, left grey: >1.8 volts
All segments off, outline flashing: < 1.8 volts
It is recommended to change the batteries when you see the one black segment.
SPEAKER VOLUME AND BATTERY CHARGE
You may notice the speaker volume drop while one battery segment is
illuminated. With the outline flashing, low speaker volume will be very apparent.
BATTERY DISPOSAL & RECYCLING
Alkaline batteries may be disposed of in a normal waste receptacle or
recycled. Other battery chemistries should be recycled.
BATTERIES

8 21
GROUND CANCELATION
WHAT IS GROUND CANC LATION?
Why do I need o cancel ou he ground?
All soils contain minerals. Signals from ground minerals are often tens or
hundreds of times as strong as the signal from 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.
Ground Cancelation is the process by which the metal detector cancels the
unwanted signals coming from the ground minerals while still detecting the
signals from buried metal objects. This is accomplished by matching the
detector's Ground setting to the Phase of the ground signal.
When the detector is calibrated to the soil, the result will be deeper target
detection, quieter operation and more accurate target identification.
The most accurate GROUND value is the value displayed when “pumping” the
searchcoil over the ground in an area free of metal.
Ground Grab®Computerized Ground Cancelation:
This control allows you to set the detector's internal ground setting equal to the
Phase of the ground you are searching over.
Press-and-hold to invoke automatic ground cancelation. This will “grab” the
ground value and store it in the detector.
In order to calibrate the detector to the most accurate ground value, pump the
searchcoil up and down over the ground while standing in one place over a patch
of ground free of metal.
1. Press-and-hold .
2. Start with searchcoil 6” above the ground; lower it to about 1” from the
ground.
3. Continue the pumping motion up and down until the 2-digit number
stabilizes and remains a constant value.
4. At the point where the 2-digit number stops changing, the detector has
correctly measured the ground Phase.
5. Release to set the detector's internal ground setting equal to the last
value displayed.
During GROUND GRAB, the detector jumps into ALL M TAL operation.
The sound you hear is the sound of the ground.
6. Note: GROUND GRAB®will not automatically balance over highly
conductive soils, such as a wet salt water beach. Automatic balancing is not
possible in soils with ground values less than 40. The screen will display “--
” and an alarm will sound if over metal or in ground with a value less than 40.
QUICK-START DEMONSTRATION
I. Supplies Needed
• Nail (made of iron) • U.S. Quarter (or silver coin) • U.S. Nickel
• Gold Ring • U.S. Dime • U.S. Penny, dated after 1982 (post-1982 pennies are made of Zinc)
(Most newer non-U.S. coinage also contains mostly Zinc)
II. Position the Detector
a. Place the detector on a table with the searchcoil hanging over the edge (or
have a friend hold the detector with the searchcoil off the ground).
b. Keep the searchcoil away from walls, floors and metal objects.
c. Remove watches, rings and jewelry.
d. Turn off lights or appliances whose electromagnetic
emissions may cause interference.
e. Pivot the searchcoil back.
f. Press to power on. A series of 10 numbers will
sequence across the screen, this is the
serial number.
g. Press twice. All target categories are
now illuminated.
III. Demonstrate DISCRIMINATION Feature:
a. Pass all objects over the searchcoil and notice the different tones. Notice
the target icon indicators and the large two digit target ID number displayed
for each item.
Nail: low tone
Nickel: medium tone
Zinc Penny: medium tone
Gold Ring: most gold rings will register with a medium tone
Dime: high tone
uarter: high tone
b. Press button twice, to Jewelry Mode. Notice Fe graphic is now
removed.
c. Wave nail over searchcoil. It will not be detected because it has been
“discriminated out.”
IV. Demonstrate NOTCH Feature:
a. Press until “NOTCH” is illuminated.
b. Press until Icon “3” is flashing, then wait until icon stops flashing
(appr ximately 5 sec nds). The icon will be blanked out.
c. Pass nickel over the searchcoil. It will not be detected. The nickel has been
“notched” out.
d. Press 4 times, target icon 3 is now flashing, then wait until icon stops
flashing (appr ximately 5 sec nds). The icon will now be notched back in.
Only one target category can be notched at a time. Repeat the process to
notch additional categories.
V.
Demonstrate DEPTH Indicator:
a. Pass the Nickel close to the searchcoil (about 1” away).
b. Notice the depth bar graph indicating a shallow target.
c. Wave the Nickel farther away from the searchcoil and notice additional
bar graph segments illuminating, indicating a deeper target.
VI.
Demonstrate PINPOINT feature:
a. Press and hold . “PP” momentarily appears on the screen.
b. Hold a coin motionless over the searchcoil.
c. Lower coin toward searchcoil and then raise coin away from searchcoil.
d. Notice the sound changes as the coin distance varies.
e. Notice the depth indicator changes as the coin moves up and down.

920
DEPTH & TARGET DISPLAY
(Continued)
THE BASICS OF METAL DETECTING
This 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 you do not want to find, like
nails.
3. Identifying a buried metal object before you dig it up.
4. stimating the size and depth of objects, to facilitate digging them up.
5. liminating the effects of electromagnetic interference from other
electronic devices.
Your metal detector is designed with these things in mind.
1. 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 of ground minerals present. This
detector has proprietary circuitry to automatically eliminate interfering
signals from minerals that occur naturally in the ground.
NOTE: This detect r will n t c mpletely eliminate interference fr m all
types f minerals. F r example, the detect r IS NOT designed f r use n
wet sand saltwater beaches. An ther example f s il this detect r will n t
eliminate is any s il c ntaining large c ncentrati ns f ir n xides, which
are usually red in c l r.
2. Trash
If searching for coins, you want to ignore items like aluminum foil and nails.
You can see the Target-ID of the buried objects, listen to the sounds and
then decide what you want to dig up. Or, you can eliminate unwanted
metals from detection by using the different Modes or NOTCH feature or
use the Custom mode to create your own discrimination settings.
3. Identifyin Buried Objects
Metal objects are identified along the 9-segment Conductivity graphic symbols
and with a large 2-digit target ID number in the center of the screen. Both are
indicators of the relative electrical conductivity of different objects. Segments
to the right indicate more conductive targets. Iron objects will be illuminated
with the Fe symbol. The Fe (iron) category will display target ID numbers from
1 to 19.
Gold, nickel and brass objects will be illuminated in the
“Gold” group .
Silver and copper objects will be illuminated in the
“Silver” group .
4. Size and Depth of Buried Objects
The 6-segment graphic indicates the relative depth of a buried metal object.
This graphic can indicate the relative size of different objects or their
distance from the searchcoil. For a given object, the more distance
between it and the searchcoil, the more segment lines illuminated.
50-59. US. Zinc coins and
many non-U.S. coins of recent
vintage are classified here.
60-69. Copper coins, small
silver coins (U.S. dime)
70-79. Medium sized silver
coins (U.S. quarters)
80-89. Large silver coins (U.S.
half dollars).
90-99. Very Large silver coins
(U.S. silver dollar). When used in
areas outside the U.S., these
categories identify coins or metal
objects of high relative conductivity
(such as silver coins or relics), or
large objects made of any type of
metal.
Caution: The target indications are
visual references. Many other types
of metal can fall under any one of
these categories. While the detector
will eliminate or indicate the
presence of most common trash
items, it is impossible to accurately
classify ALL buried objects.
See Target-ID
Coin Reference Chart (Page 18).

10 19
DEPTH & TARGET DISPLAY
READING THE DISPLAY
The display shows the PROBABL
identification of the metal detected, as
well as its PROBABL depth.
The detector will register a target upon
each sweep of the searchcoil, when a
buried target has been located and
identified. If, upon repeated passes
over the same spot the target
identification reads inconsistently, the
target is probably a trash item. With
practice, you will learn to unearth only
the repeatable signals.
Target-ID numbers, as indicated on the
Coin Reference chart (page 17), are
highly accurate when those items are
detected. However, there are many
other metallic items that will register
within these groups, so identification is
not always accurate. Multiple targets
in close proximity to each other,
especially if one is above the other in
the soil matrix, can display non-typical
ID and Depth, or “mask” out the
deeper target altogether. The greater
the distance between the target and
the searchcoil, the less accurate the
target identification.
Depth indication in the Pinpoint mode
is accurate on coin-sized objects as
defined in the category groups, but it
too can be inaccurate if multiple targets
of varying depth and conductivities are
in close proximity of each other.
GOLD TARGETS Gold objects will
generally register in the “GOLD” group
with smaller items in groups 2 & 3 and
larger items in groups 4 & 5. Gold
flakes will register under iron.
SILVER TARGETS: Silver objects will
register in the “Silver” group, A U.S.
dime will ID in group 6, a US quarter in
group 7, a U.S. half dollar in group 8
and a U.S. dollar in group 9.
1-19. All sizes of iron objects
will register on the far-left side of the
scale. This could indicate a
worthless item such as a nail, or a
more valuable historic iron relic.
20-29. Aluminum foil, such as
a gum wrapper, will register as foil. A
small broken piece of pull tab may
also register here.
30-39. U.S. Nickels, most
newer pull-tabs from beverage cans,
the type intended to stay attached to
the can, will register here. Many gold
rings will also register here.
40-49. Many medium-sized
gold rings also register here. A few
newer pull-tabs and many gold rings
will also register here. S-CAP: Older
screw caps from glass bottles and
large gold rings (like a class ring)
could also register here. Some non-
U.S. coins of recent vintage will also
register here.
5. EMI (Electroma netic Interference)
The searchcoil produces a magnetic field and then detects changes in that
magnetic field caused by the presence of metal objects. This magnetic field
the detector creates is also susceptible to the electromagnetic energy
produced by other electronic devices. lectric fences, cell phones, cell phone
towers, power lines, microwave ovens, lighting fixtures, TVs, computers,
motors, etc., all produce MI which can interfere with the detector and cause
it to beep erratically.
The S NSITIVITY control lets you reduce the strength of this magnetic field
and therefore lessen its susceptibility to MI. You may want to operate at
maximum strength, but the presence of MI may make this impossible. If you
experience erratic behavior or “false” signals, reduce the sensitivity.
THE BASICS OF METAL DETECTING
(Continued)
Sweep Method
Sweep the detector side-to-side over
the ground.
Keep the searchcoil parallel to the
ground as you sweep; do not lift the
searchcoil at the ends of your sweeps.
Searchcoil motion is required for target
detection.
USING THE DETECTOR
This detector is equipped with an 11” triangulated elliptical concentric
waterproof searchcoil. This lightweight, ruggedly constructed searchcoil
can be fully submerged into water. The bottom portion of the pole assembly
can also be submerged, but the control housing and the searchcoil cable
plug connection into the housing must not be submerged. The
weatherproofing on the F44 was designed to allow hunting in inclement
weather but it was not designed to withstand submersion in water.
Accessory searchcoils are also available for purchase; see back cover or
visit www.fisherlab.com. A smaller searchcoil offers more precision and fits
into tight spaces. Larger searchcoils provide for more ground coverage on
each sweep and penetrate deeper into the ground. Biaxial searchcoils
provide better penetration in mineralized soils.
11 WATERPROOF SEARCHCOIL
WRONG
RIGHT
WRONG
RIGHT

11
18
See chart bel w f r descripti n f t nes induced by different metals in different m des:
Ferrous, gold and silver targets will generally register within their
corresponding category icon ranges. Targets that are not gold or silver register
within the same range according to their electrical conductivity.
Note the electrical conductivity of a target depends on both its composition and
size. Silver is more conductive than gold so it registers farther to the right; and
the larger the silver object, the farther it registers to the right. There are a wide
variety of metals and no target can be identified for certain until unearthed. See
coin reference table below.
Jewelry, Coin and Artifact modes have predefined audio tones for the various
Target Category groupings. The All Metal mode has a single proportional tone
(V.C.O.) for all categories. The Custom mode is programmable and users can
assign any tone to any of the Target Category groups. The Custom modes
default tone for all categories is a single proportional tone (V.C.O.). V.C.O.
varies in pitch and volume depending on the depth and size of the target. The
custom tones are automatically saved when the unit is turned off.
CUSTOM MODE PROGRAMMABLE TONES
To program your Custom mode tones:
1. Press button until CUSTOM is activated.
2. Press and hold for approximately 1 second. The Fe icon will start flashing.
3. Press button to cycle through target categories.
4. To select a tone for the desired category, press “+” or “-“ to cycle through
5 tone options (0=VCO, 1=bass, 2=low, 3=medium, 4=high).
5. To exit the tone selection mode, press .
6. To continue setting tones for additional categories Press to set selection
and cycle to next target category. To exit the tone selection mode, press .
TARGET IDENTIFICATION (Continued)
Merovingian Triens (gold, France) 21
Celtic Potin (copper+lead) 27
Russian Scale Peter I, 1705, Silver, 0.25 gr. 34-36
US Nickel 34-36
Roman Nummus (bronze) 40
2 Euro Coin 43-47
British 20p 45-46
USSR, 5 kopeek, 1961, Bronze, D 25 mm. 46
Bulgarian 1 lev 47-49
1 Euro Coin 48-56
Medieval double sol coin (France) 50
British £1 57-62
US Dime 64-66
Polish Zloty (Pre-WWII) 2zl (1933 silver) 75-76
US Quarter 74-77
US Silver Dollar 90-92
Russian, 1 ruble Nikolay II,1896, Silver, D 34 mm. 97-98
Target-ID Coin Reference Below are known Target-IDs for some reference coins:
Iro n Gold Silver
Fe 2 3 4 5 6 7 8 9
Iron Foil Nickel Alum Zn Dime Qtr Half Dollar
Jewelry Bass Med Med Med Med High High High High
Coin Bass Bass Med Bass Low High High High High
Artifact Bass Med Med Med Med High High High High
Custom User denable (default VCO)
AM VCO
OPERATION and CONTROLS
PP
MENUMODE
GG
Press MODE
repeatedly to cycle
through search
modes:
• JEWELRY
• COIN
• ARTIFACT
• CUSTOM
• A/M
Press MENU
to cycle through
menu items:
• VOLUME
• SENS
• NOTCH
• GROUND
• BACKLIGHT
Press
or
to INCREASE
or DECREASE
menu
settings.
Press and
hold
PP
to enter
Pinpoint.
POWER
ON/OFF
At Power-up
the Menu
default is
VOLUME
Press-and-Hold
GROUND GRAB®to
perform automatic
ground cancelation.

12 17
TARGET IDENTIFICATION
Tar et-ID
This is a motion detector. The coil must be moving for the detector to sense
metal except when in Pinpoint. If you stop the coil over a metal object it will
null-out and go silent. When metal objects are detected, the detector will emit
a sound, a Target ID Category icon will illuminate and a 2-digit Target-ID
number will appear on the screen. Possible Target-ID numbers range from 1 to
99. This number represents the electrical conductivity of the target; higher
numbers indicate more highly conductive targets.
Target indicators on the screen only represent the last object detected. This
detector has fast target response and is able to detect different objects in very
close proximity. Therefore, the Target-ID displayed may change rapidly as you
sweep the searchcoil.
Three seconds after a target is detected, the ID numbers will time-out and
disappear and the Target Category Icon will change to the non-illuminated state.
Solid illumination of a singular target category indicates the detector is
confident of the target identification. If target-ID confidence is low, the detector
will assign several possible categories with the most likely target category solid
black and less likely target categories shaded gray.
Iron, Gold and
Silver Indicators
The group border
momentarily flashes
when an object in that group is present.
The border flashes independently of the notch settings.
Relic hunters will frequently seek out iron-laden sites as good prospective
treasure-hunting sites. The iron indicator alerts the user to the presence of
iron, even if iron has been discriminated out. Relic hunters can search free of
iron-target audio, yet still be alerted to the presence of ferrous objects or
search with no discrimination and use the FeTone™ feature to decrease the
Audio Volume of ferrous targets
4-Tone Tar et Identification
The detector will provide 1 of 4 sounds for any metal object detected: a bass,
low, medium or high tone. This audio feedback system is useful in conjunction
with the visual Category Icon system described above.
Gold Silver Iron
Target Conductivity Bar
IRON FOIL NICKEL ALUM Zn US10¢ US25¢ US50¢ US$1
1-19 20-2930-3940-4950-5960-6970-7980-8990-99
Range
Category
Target-ID
THE DISPLAY
Target-ID
Target
Depth
Indicator
Battery Level
Indicator
Target Category
ID Numbers
Iron
Menu
Category
Icons
Mode
Indicator
Target Category Icons
Icons will turn from outlined to solid indicating a detected target.
A “blank” position indicates a Notched-out target category.
Ground
Mineralization
Indicator
Ground
Error
Icon
Backlight
Icon
DEPTH INDICATOR
Coin-sized objects will be detected up to 10” deep. The 6-segment graphic
indicator is calibrated to coin-sized objects.
Objects other than coins will still register on the 6-segment depth scale, but the
depth indication will be relative. For example, all 6 segments illuminated could
indicate a coin buried 10” deep, but could also be a very large object several
feet deep. Use the Depth Indicator in conjunction with the Target Category
Icons and the aid of Pinpoint to gain more information about the buried target.
OVERLOAD WARNING
If a metal object or highly magnetic soil are too close to the searchcoil, the
detector will verl ad and a “--” will appear on the screen. The detector will
make a rapid, repeating mid-tone warning sound. Overl ad will not harm the
detector, but the detector will not function under these conditions. If verl ad
occurs, raise the searchcoil to detect the target from a greater distance, or
move to a different location.
Depth of Coin-Sized
Object Less Than 2”
Depth of Coin-Sized
Object Deeper Than 4”
Depth of Coin-Sized
Object Deeper Than 6.5”

13
16
After you have identified a target using a motion mode of detection, press and hold
the to identify the target’s 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. Press and hold
2. Position the searchcoil just barely off the ground and to the side of the
target.
3. Move the searchcoil slowly across the target.
The target is located directly under where the sound is loudest.
Pinpoint Retunin :
Retuning in the Pinpoint Mode is useful in narrowing down the location of a
target. To retune the detector, release the button and immediately depress it
again. When the user releases the , “ ” is displayed momentarily on the
screen. The “ ” indicates the detector is retuning to the incoming signal level.
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.
2. Release .
3. Immediately press-and-hold again.
4. Repeat this narrowing procedure to narrow the field of detection further.
Note: Depth indication is less accurate after narrowing.
COIL DRIFT
If you plan to use PINPOINT 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
periodically to retune.
PINPOINTING USING MOTION MODES (without usin )
1. Sweep over target in narrowing side-to-side patterns.
2. Visualize a “center line” on the ground where “beep” occurs.
3. Rotate 90° and now sweep along this imaginary line.
4. Visualize a second “center line” on the ground where “beep” occurs.
5. The “X” center pinpoints the target location.
MENU
(Continued)
The Menu is located on the left side of the screen. During normal operation the
Menu is inactive and the text icons are faded. Press the button to cycle
through the menu options. When active, the icon will be bold. ach press of
the moves to the next Menu item. Use within each menu item to make
adjustments up or down. Here is a description of the Menu options:
VOLUME
Adjust speaker volume from 0 to 20. The default setting is 7. With a setting of
“0”, the detector will function as normal but it will not emit any sound when
targets are detected.
The F44 has FeTone™, adjustable Iron audio, a feature to reduce the volume
of iron targets to minimize user fatigue.
Volume settings of 10 – 20 are available to control the volume level of the iron
targets. As you increase volume from 10 to 20, iron-volume changes from
silent to maximum. At each of the 10 – 20 volume settings, nonferrous target
response remains at maximum volume. At volume settings 0 – 9 both ferrous
and nonferrous targets have equal volume.
xample: at volume setting 15, nonferrous target volume is maximum, ferrous
target volume is at “5”, or half volume.
Volume settin s will be saved when the detector is turned off.
SENS
Adjust the sensitivity from 1 to 20. The default setting is 12. The higher the
number, the more sensitive the detector.
If the detector beeps erratically or beeps when there are no metal objects
being detected, reduce the sensitivity.
The searchcoil produces a magnetic field and then detects changes in that
magnetic field caused by the presence of metal objects. This magnetic field
the detector creates is also susceptible to electromagnetic energy ( MI)
produced by other electronic devices. lectric fences, cell phones, cell phone
towers, etc., all produce MI which can interfere with the detector and cause
it to beep when no metal is present and sometimes to beep erratically.
Sensitivity settings will be saved when the detector is turned off.
MENU
Table describes ferrous and nonferrous volume at each setting
Volume Volume
Se ing Nonferrous Ferrous Se ing 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

14
OPERATING MODES
There are four discrimination modes: J W LRY, COIN, ARTIFACT and
CUSTOM, and ALL M TAL (A/M) mode. J W LRY and COIN modes have
preset notch settings.
You can change all 9
target category notch
settings in all four
discrimination modes
and these changes will
be saved on shutdown.
Pressing the MOD
button will cycle through
the modes. The active
Mode will have bold
text. Use NOTCH to
change discrimination
settings in each mode.
The NOTCH function
does not work in All
Metal mode.
JEWELRY Mode preset NOTCH: Fe (Iron) category notched out.
COIN Mode preset NOTCH: Fe (Iron) and Target Category groups 2 (Foil) and 4
(Aluminum) notched out.
ARTIFACT Mode: All Target Categories enabled.
CUSTOM Mode: User definable.
FACTORY RESET
To reset your F44 to the default factory settings:
1. Turn the detector off.
2. Hold the M NU button down while pressing the Power button.
NOTE: This reset will erase any custom tone settings you may have entered
in the Custom Mode.
PINPOINT
Press and hold to activate. Searchcoil motion is not required; a motionless
searchcoil over a metal target will induce sound.
Audio is V.C.O. The 2-digit number displayed indicates target depth, in inches.
The scale is calibrated to coin-sized objects.
MENU
(Continued)
15
MENU
(Continued)
NOTCH
The Notch control allows you to accept or reject different types of metals per
each target category group. All categories are eligible for NOTCH. ach mode,
Jewelry, Coin, Artifact and Custom, has its own set of notches.
With Notch menu active, press “+” or “
- ” to program the Notch feature. ach
press of the “+” or “
- ” cycles to a new category and the active position is
indicated by a flashing icon. Select desired category and wait 5 seconds or
press the menu button for immediate notch setting. That category will reverse
status. If the icon had previously been illuminated it will now disappear
indicating the category has been eliminated from detection. Likewise, an icon
that is not visible on the display will re-illuminate, indicating that category is
now notched in and targets will be detected.
All of the 9 target categories can be notched, but only one category can be
notched at a time. All Notch settings are saved when the detector is turned off.
GROUND
Adjust the Ground setting from 0 to 99. This provides for manual adjustment of
the detector's internal ground setting, which you will usually want to set at the
same value as soil's Ground Phase value. See the Ground Cancelation
section of the manual for an explanation of Ground Phase.
When adjusting the Ground setting manually, only a two digit ground phase
number will be present. Note that when adjusting the Ground setting, the
displayed setting changes by 1 number only after 10 keypad presses. The
detector actually has 1,000 different ground settings to choose from, but uses
only 2 digits to display the number. Reasons for this manual ground cancelation
feature are explained in the Ground Cancelation section of the manual.
The Ground menu option is only available in the All Metal (A/M) Mode. In all
other modes, the Ground menu option will not appear on the screen, but the
manual Ground setting carries over into the Jewelry, Coin, Artifact and Custom
modes and Pinpoint.
The Ground setting is not saved when the detector is powered off.
BACKLIGHT
Available adjustment is from 0 to 5. This option controls the brightness of the
display 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 when a backlighting is not required.