Tesoro Mojave Assembly instructions

OPERATOR INSTRUCTION MANUAL

Model: MOJAVE
Serial Number:
Date Purchased:
Dealer:
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translated or reduced to any electronic or machine-readable form, in whole or in part, without the
prior written consent of Tesoro Electronics Incorporated, except in the manner described in this
documentation.
©2017 Tesoro Electronics Incorporated. All rights reserved. Printed in the United States.
Tesoro Electronics, Incorporated
715 White Spar Road
Prescott, AZ 86303
928-771-2646
www.tesoro.com

TESORO ELECTRONICS, INC. i
MOJAVE
OPERATOR INSTRUCTION MANUAL
Congratulation in the Purchase of your Tesoro Mojave Metal
Detector.
You’ve taken the rst step to be successful in treasure hunting,
purchasing a high quality metal detector.
e second step is to learn to use your metal detector properly.
Please take the time to read and understand the manual. It will
walk you through assembly, the controls, an air test, and eld use.
e third step is to hunt where treasure may be found. Your local
dealer may provide insight, as well as treasure hunting maga-
zines and books. Your research about locations and history will
be as important as your choice of detectors.
e nal step is to be persistent. ere is no substitute for time
in the eld. Your success should grow with your experience and
condence.
All of us at Tesoro wish you success and enjoyment in your trea-
sure hunting experience.
Vince Giord

ii MOJAVE MANUAL
CONTENTS
GETTING STARTED
Unpacking the Box..................................................................................1
Installing the Battery................................................................................2
Attaching Lower Poles to the Coils..........................................................3
Assembling Your Detector.......................................................................5
CONTROLS
Sensitivity.................................................................................................9
Ground Condition Switch - High/Low.......................................................9
Discrimination Level - 3 Zones................................................................9
AIR TEST - SELF GUIDED TUTORIAL
Introduction............................................................................................10
Step 1....................................................................................................11
Step 2....................................................................................................11
Step 3....................................................................................................12
Step 4....................................................................................................13
FIELD USE
Adjusting the Pole and Search Coil.......................................................14
Tuning Your Detector.............................................................................14
Audio Battery Test.................................................................................15
Setting the Sensitivity Level..................................................................15
Setting the Discrimination Level............................................................16
3 Color Zones........................................................................................17
Ground Condition Selector Control: High/Low.......................................19
High Ground Conditions vs. Low Ground Conditions............................19
Ground Sample Testing for High or Low................................................20
Recognizing False Signals....................................................................21
Controlling Audio Volume......................................................................21
Handling Your Detector..........................................................................22

TESORO ELECTRONICS, INC. iii
FIELD USE (cont'd)
Pinpointing a Target...............................................................................23
Recovering a Target..............................................................................23
Planting a Test Garden..........................................................................24
Audio Reactive......................................................................................24
GENERAL INFORMATION
Basic Care............................................................................................26
Protecting Your Investment...................................................................26
Search Coils..........................................................................................29
Tesoro Search Coils...............................................................................30
TesoroAccessories................................................................................30
Scuff Covers..........................................................................................31
Headphones..........................................................................................31
Recommended Recovery Methods.......................................................32
Metal Detectorist's Code of Ethics.........................................................34
Specications........................................................................................35
Trouble Shooting...................................................................................36
Warranty Service/Description.................................................Back Cover

iv MOJAVE MANUAL
Notes:
is is Called a "QR Code." It represents a web
site address. is particular QR Code represents
the link to your Mojave Owners Manual.
Scan this code with your smart phone to gain
quick access to your manual while in the eld!
We hope you enjoy this new feature. Happy
Hunting!
Tesoro Sta
THE QR CODE AND HOW TO USE IT

TESORO ELECTRONICS, INC. 1
GETTING STARTED
UNPACKING THE BOX
Your Mojave Metal Detector was shipped with the following:
1 - Upper Pole Assembly
Fully assembled, including upper pole stem with handle
grip, padded arm bracket, pole lock and control housing
1 - Middle Pole Assembly with Pole Lock
1 - Lower Pole Assemblies
Fully assembled nylon pole complete with two friction
washer, wing bold, and wing nut
1 - 7" Precision Concentric Coil
1 - 9 volt Alkaline Battery
1 - One Wrap Velcro Strips (to hold coil cables)
1 - Operator Instruction Manual
1- Tesoro Warranty Card

2MOJAVE MANUAL
If any of these items are missing, immediately contact the
Tesoro Authorized Dealer where you purchased your detector.
Assembly of the Mojave is simple and requires no special tools.
Just install the battery, mount the search coils on the lower pole assem-
blies, connect the pole assemblies together, wrap the excess cable around
the pole and plug the cable into the control housing. Finally adjust the
pole length and search coil angle and you’re ready!
INSTALLING THE BATTERY
To install or replace the battery, rst make sure the Sensitivity
control is set to OFF - turned completely counter clockwise past the
“click”. Remove the battery door from the back of the control housing.
Do this by pressing your thumb rmly on the louvered square - at the
bottom of the battery door - and sliding the batter door upward (in the
direction of the arrow) while pushing.
Check the polarity on the battery and on the diagram inside the
battery compartment. Make sure they match when you insert the fresh
9 volt alkaline battery into the compartment.
Replace the battery door by sliding it into place making sure the
upper mount slots are in line and the lock tongue is snapped in place.
Figure 1 — Battery Diagram
GETTING STARTED

TESORO ELECTRONICS, INC. 3
ATTACHING LOWER POLES TO THE COIL
1. On a lower pole assembly, remove the mounting screw and thumb nut
from the black nylon pole. Press the friction washers in the recessed
feature of the pole tip.
3. Insert the mounting screw through the holes in the mounting ears and pole
tip.
2. Insert the pole tip between the mounting ears of the search coil and
align the holes of the pole tip and friction washers with those of the
mounting ears.
NOTE: e pole tip should t very snugly into the mounting ears with
friction washers in place (a splash of water on friction washers helps).
Figure 3 — Pole Tip In Search Coil Mounting Ears
Figure 2 — Remove Mounting Screw and umb Nut
GETTING STARTED

4MOJAVE MANUAL
4. Install the thumb nut on the mounting screw and tighten by hand.
NOTE: Do not over tighten the thumb nut. It should be snug, but not too
dicult to loosen up.
5. Wrap the cable around the pole and use one-wrap Velcro strip to hold
cable per Figure 5. is will prevent the cable from opping while not
in use.
Figure 5 — Lower Poles Properly Attached to Coils
Figure 4 — Mounting Coil to Lower Pole
GETTING STARTED

TESORO ELECTRONICS, INC. 5
ASSEMBLING YOUR DETECTOR
1. Loosen the pole lock on the upper pole assembly. Depress the two
spring buttons on the middle pole assembly and slide the middle pole
assembly into the upper pole assembly until the spring buttons click
into the holes, locking the two assemblies into place. Tighten the pole
lock to secure the two assemblies together.
2. Remove one-wrap Velcro strip from lower pole assembly. Loosen the
pole lock on the middle pole assembly. Depress the rst two spring
buttons on the lower pole assembly and slide lower pole into the mid-
dle pole, depress the second two spring buttons and slide until spring
buttons click into a set of adjustment holes. Select the adjustment holes
that give you the proper overall hole length you require (only one set
of spring buttons will be in adjustment holes depending on your length
setting). Turn pole lock to tighten, locking the assembly into place.
3. Wrap the cable around the pole leaving enough slack near the search
coil to permit search coil adjustment. (See Figure 8)
NOTE: Do not allow the cable to op loosely over the search coil. Since the
detector is sensitive enough to “see” the wires in the cable, a oppy cable
can cause false signals as the search coil senses the moving wires.
Figure 6 — Attach Middle and Upper Pole Assemblies
GETTING STARTED

6MOJAVE MANUAL
4. Plug the male cable end into the female connector on the control hous-
ing and tighten the cable thumb nut. You are Finished!
NOTE: You will want to adjust the pole length and the search coil angle to
your preference. See Field Use Section, Page 14.
Figure 7 — Connecting the Cable
GETTING STARTED

TESORO ELECTRONICS, INC. 7
GETTING STARTED
Figure 8 — Properly Assembled Mojave

8MOJAVE MANUAL
CONTROLS
eMojaveMetalDetectorhasonlythreecontrols,allmountedonthefront
panel of the housing for ngertip adjustment. How these controls should be
setforpeakperformancewilldependonthetypeonmetalyouaresearching
for, search site conditions, mineral content of the soil and so forth. Use the
informationinthissectionandtheFieldUseSection“TuningYourDetector”
as a basis for setting the controls on your detector. Using your Mojave Metal
Detector in the eld will allow you to learn the detector’s responses to
various conditions and will guide you in ne tuning the detector’s oper-
ating controls.
Figure 9 — Mojave Controls

TESORO ELECTRONICS, INC. 9
SENSITIVITY
is rotary control switch has three functions:
• Turns the detector ON and OFF
• Activates the automatic Audio Battery Test
• Adjusts the sensitivity level from number 1-5 and the RED area
Turning the knob clockwise from the OFF position turns the detector on.
It also activates the automatic battery test. e battery test is an audio tone.
Turning the knob completely counter-clockwise until it clicks turns the
detector o. e volume and duration of the tone is related to the battery
strength. When the battery test is no longer heard, the 9V battery needs to
be replaced. Continue to turn the knob clockwise will increase the sensi-
tivity in the discrimination (DISC LEVEL) zones.
GROUND CONDITION SWITCH HIGH/LOW
is two-position switch has two functions:
• HIGH
• LOW
HIGH is used for moderate to high ground mineralization. LOW is used
for low to moderate ground mineralization.
DISCRIMINATION - 3 ZONES
is rotary control has one function:
• Set the level of discrimination in the three colored zones
Turning the knob counter clockwise to 6 o'clock will lower the amount of
discrimination to all metal, lowering the amount of targets discriminated
out. Turning the knob clockwise (MAX) will increase the amount of dis-
crimination, increasing the type of targets discriminated out.
CONTROLS

10 MOJAVE MANUAL
AIR TEST - SELF GUIDED TUTORIAL
INTRODUCTION
e air test is designed to introduce the use of controls for the Mojave
Metal Detector. If you have never owned a metal detector before, follow
each step carefully.
You will need:
• Fully assembled Mojave Metal Detector
• ree newer coins: a penny (1984 or newer), a nickel and a quarter
• A non-metal table or counter surface
• Approximately 20 minutes to complete the Air Test
Prepare for the Air Test:
• Place your assembled Mojave Metal detector on the non-metal sur-
face as shown in Figure 10
• Make sure there are no metal objects near the coil
• Remove any jewelry from your hands and wrists
Figure 10 — Mojave on Non-metal Surface

TESORO ELECTRONICS, INC. 11
Do the following steps:
1. Turn on Mojave with the SENSITIVITY knob and perform an audio
battery test
2. Set SENSITIVITY to preset ◆ (#4)
3. Set GROUND CONDITION switch to HIGH
4. Adjust the discrimination (DISC LEVEL) to WHITE ZONE at 6 o'clock
position
Step 1 - Perform an Audio Battery Test
When the unit is rst turned on, the Mojave Metal Detector will automat-
ically activate the audio battery test.
Turn the SENS control from OFF to 1.
A Solid tone will be heard for up to 6 seconds. e length and the volume
of the tone indicate the strength of the battery. When the tone stops, the
detector is up and running and the control can be adjusted. If there is no
tone at all, the battery needs to be replaced.
Now you should understand that when the unit is rst turned on, the du-
ration of the tone indicates the health of your battery.
Step 2 - Adjust the SENSITIVITY
PRESET SENSITIVITY MARKER is a Red Diamond marker just above
the number 4. is will give you a reference for starting out and adjust-
ments can be made up or down depending on your hunt conditions.
Sensitivity control allows the operator to adjust the overall sensitivity on
how the coil will respond on targets and amount of depth in the ground.
As you move from the numbers 1-5 and a Red Zone the audio become
more sensitive to detect smaller objects in deeper coverage. In areas with
electromagnetic interference you will need to reduce the overall sensitiv-
AIR TEST - SELF-GUIDED TUTORIAL

12 MOJAVE MANUAL
AIR TEST - SELF-GUIDED TUTORIAL
ity to smooth out the operation of the detector. At or near the RED zone
you may encounter chirping and erratic sounds. By reducing the sensitiv-
ity control the audio responses to become clearer and have better target
response but you will have a reduction in depth.
Using lower numbers means you can hunt with less sensitivity while
searching for surface targets that may be shallow or just below the sur-
face. When searching areas with heavy trash use a reduction of sensitivity
creating better pinpointing and separation of targets. With practice each
operator can nd that sweet spot for a balance of Sensitivity and Discrim-
ination and make the necessary adjustments for a smoother operation.
e Preset on the Sensitivity should give you a good depth and a smooth
operation over a wide range of ground conditions. As you increase to-
wards the RED Zone, you will increase the overall sensitivity but the unit
may become erratic depending on ground minerals or electromagnet in-
terference. e certain areas with electromagnetic interference will need
a reduction in the sensitivity to smooth out the operation. Depending on
the area being hunted you can try dierent levels with the sensitivity con-
trol to be turned down for smoother operation or turned up for greater
depth. Running higher levels of sensitivity as where the audio is totally
unstable can cause you to miss those deeper targets. When detecting sur-
face targets that are too close to the coil you can have multiple blips or a
machine gun audio response. When this occurs, simply raise the coil a
few inches above the target to eliminate this response.
Step 3 - GROUND CONDITION SWITCH
For the Air Test it is not important if it is in high or low but for this ex-
ample have the GROUND CONDITION switch in HIGH mode. Since it
is not important which setting the ground condition switch is during the
AIR TEST, more information will be provided in the FIELD TEST sec-
tion.

TESORO ELECTRONICS, INC. 13
AIR TEST - SELF-GUIDED TUTORIAL
Step 4 - ADJUST THE DISCRIMINATION LEVEL
e Discrimination (DISC LEVEL) is used to block certain metal or targets
from being detected. When you increase the DISC LEVEL further clockwise
into the colored zones, then dierent metals are discriminated out. For ex-
ample if you wave a 5 cent nickel above the coil and dial the Discrimination
(DISC LEVEL) clockwise in the yellow zone, there will be a spot on the dial
where the 5 cent nickel is no longer accepted and hear no audio response.
By lowering the DISC LEVEL below the 5¢ marker in the YELLOW ZONE,
it will start to respond once more. Try dierent metals and targets such as
pull tabs, nails, screw caps and dierent coins. e PRESET setting for the
DISC LEVEL is at the 9 o'clock position and is a great starting point for all
around hunting. Nickel coins and almost all gold rings are accepted by the
audio at this 9 o'clock setting.
e Mojave will respond when moving a coin across the coil and produce a
target response. e response will start out loud and sharp. If you stop over
the coil, then the response will stop. is is because the Mojave is MOTION
ACTIVATED over the targets. Motion is required in order to detect the tar-
gets. You can speed up, slow down, or stop and notice the response. Move
the coin further away from the coil and you will notice the audio response
will become smaller. Now increase the sensitivity control higher and the
audio will become stronger when further away from the coil. Use a coin and
note on how wide or sharp the target response becomes. Items like nails will
start to respond wider and start detection before the target reaches the edge
of the coil. Coins will start detection on the inside of the coil. It is import-
ant to learn how the audio responds with dierent targets. is will apply
to targets in the ground as well. Practice will allow you to learn how wide,
sharp, choppy, broken, or smooth responding targets sounds, which is the
key to learning the audio response. Let your ears discern a targets identity
before you dig. When increasing the sensitivity you may encounter electri-
cal interference to where the signal has become chatty and you may need to
lower the sensitivity for smoother audio when testing and sampling targets.

14 MOJAVE MANUAL
FIELD USE
ADJUSTING THE POLE AND SEARCH COIL
e pole length should be adjusted so that the detector does not
become uncomfortable or tiring aer long periods of use. e detector
grip should rest in your hand with your arm relaxed, your elbow straight
but not locked, with the pole extending out in front of you at the approx-
imate angle show in the photo.
You should be able to swing the detector back and forth in front of
you - using relaxed shoulder movement- while keeping the search coil as
close to the ground as possible. is swinging movement is oen called a
“sweep”.
e search coil should not touch the ground during your sweep.
e pole length should be adjusted to allow this without having to li the
detector with your elbow or shoulder. e search coil should rest about
one inch above the ground while you are standing erect; the angle of the
search coil should allow the bottom to be parallel to the ground.
e pole length is adjusted by loosening the pole lock, then de-
pressing the spring buttons and extending or shortening the pole until the
spring buttons click into the set of holes that give you the most comfort-
able pole length.
To adjust the search coil angle, loosen the search coil thumb nut
slightly and move the search coil into the desired position: tighten the
search coil thumb nut by hand so that the search coil will hold in place.
TUNING YOUR DETECTOR
Tuning your Mojave can be done is 4 simple steps:
1. Wait up to 6 seconds until the Audio Battery Test is complete once the
detector is turned on.
2. Setting the Sensitivity Level.
3. Setting the Discrimination Zone using the DISC control.
4. Set the HIGH/LOW switch.