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high enough to knock out the iron target and still get a positive response on the nickel, pulltabs, 
and quarter. When you are done with the IRON level, turn the DISCRIMINATE LEVEL to 
around the 5¢ setting. This level is high enough to knock out the nickel. At this time, the iron 
target and the nickel should give no response, while most of the pulltabs and the quarter will give 
a solid response. Next, turn the DISCRIMINATE LEVEL knob just past the TAB marking. At 
this time, most or all of the pulltabs should not give any audio signal. Only the quarter should 
give a strong signal. Now, roll the DISCRIMINATE LEVEL all the way to MAX. Notice that 
the quarter is still responding. The discrimination will not go high enough to lose most of the 
silver coins.  

This air test is designed to quickly show you how your discriminate mode works. Each machine 
may be a little different from all of the others, so you may want to take some time and try 
different targets to find responses of your machine. At a later date, you may want to build a test 
garden to test your detector in the field.  

Perform Air Test in PINPOINT Mode 

When you are hunting in the DISCRIMINATE Mode, the PINPOINT button will allow you to 
momentarily switch into the ALL METAL Mode. The PINPOINT button is springloaded and 
must be pressed and held to shift into the ALL METAL Mode.  

At this time, you are in the Silent Search Discriminate Mode. Press the PINPOINT button, and 
you will immediately hear the threshold audio tone. This indicates that you are now in the ALL 
METAL Mode. Your Cibola has a VCO-style ALL METAL Mode. You will find that as targets 
get closer to the coil, the threshold tone will get louder and higher in pitch.  

With the PINPOINT button pressed in, try waving your targets in front of the coil. Start from a 
distance of 10 to 12 inches away from the coil and slowly work your way closer to the coil. 
Then, try starting from 6 inches away from the left or right of your coil and work your way to the 
center of the coil. Notice the changes of the audio signal. Your strongest signal will always be 
closest to the center of the coil. Additional information can also be learned by the signal strength 
and pitch. A smaller or deeper target will give a less noticeable change in the threshold than a 
larger or shallower target will give. Take some time and try all of your argets at different depths 
to find out how your detector sounds.  

Take some time to try different DISCRIMINATE levels and then check them with the 
PINPOINT Mode. You will notice some distinctly different tones. Practice and experience will 
give you large amounts of information that will help you decide whether or not to dig a target in 
the field.  

Super Tune Your Cibola 

The Cibola can be set up to get even better depth and sensitivity while operating in the 
DISCRIMINATE Mode. Super tuning is accomplished by working in the DISCRIMINATE 
Mode and turning the THRESHOLD knob to the highest setting.  

Summary of Contents for Cibola

Page 1: ...rchcoil With 3 Cable and Scuff Cover 1 9 Volt Alkaline Battery 1 Operator Instruction Manual 1 Tesoro Warranty Card If any of these items are missing contact the Tesoro Authorized Dealer where you pur...

Page 2: ...iding the battery door upward in the direction of the arrow Check the polarity on the battery and on the diagram inside the battery compartment Make sure that they match and simply drop a fresh 9 volt...

Page 3: ...ies into place Tighten the pole lock to secure the two assemblies together 6 Slide the lower pole into the middle pole until the spring buttons click into the first set of adjustment holes Turn pole l...

Page 4: ...vement is often called a sweep The searchcoil should not touch the ground during your sweep The pole length should be adjusted to allow this without having to lift the detector with your elbow or shou...

Page 5: ...3 A nonmetal table top or counter Here s what you will do 1 Perform Audio Battery Test 2 Adjust THRESHOLD 3 Adjust SENSITIVITY 4 Perform Air Test in DISC Mode 5 Perform Air Test in PINPOINT Mode 6 Su...

Page 6: ...soft or too loud small changes in the signal will be hard to hear Take some time and find a threshold level that is right for you Adjust SENSITIVITY The discriminate circuit uses a silent search mode...

Page 7: ...small electronic field As metal passes through the field that the detector generates it causes a change in the received signal The amount of change that each type of metal causes is fairly constant th...

Page 8: ...ent Search Discriminate Mode Press the PINPOINT button and you will immediately hear the threshold audio tone This indicates that you are now in the ALL METAL Mode Your Cibola has a VCO style ALL META...

Page 9: ...machine as your detector Two machines that are on the same frequency will start broadcasting to each other This is called crosstalk If you experience crosstalk in the middle of a hunt just flip the FR...

Page 10: ...ab By switching back and forth between modes and comparing the target response sound in all metal to the target response sound in discriminate you can often better identify the likely location of the...

Page 11: ...not designed to withstand abuse In caring for your Cibola there are several important DO NOTs to remember DO NOT use it to pry rocks loose or to beat bushes out of the way DO NOT drop the machine into...

Page 12: ...oil is used in salt water rinse it and the lower stem assembly well with fresh water to prevent corrosion of the metal parts The searchcoil is waterproof but the electronics are not so always prevent...

Page 13: ...searchcoils ignore ground mineralization better than concentric searchcoils and may offer improved performance in extreme ground conditions Selecting the right optional searchcoil depends on factors...

Page 14: ...in permission prior to entering private property mineral claims or underwater salvage leases 4 Do not damage deface destroy or vandalize any property including ghost towns and deserted structures and...

Page 15: ...workmanship as long as it is owned by the original consumer purchaser This warranty is not transferable and is valid only if the warranty registration card has been completed and mailed within 10 days...

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