IRON 1.0. Audio and Visual Meter

Once you have the technique down pat and feel confident you can identify a real target, you can start to experiment with the IRON

I.D. toggle. I feel it is best to use this in the IRON 1.D. Off (center) position and then move the toggle to the TEST position in order to

attempt to identify the target. Thus, search with the I.D. off and test each dubious target. Remember, this I.D. function is designed to

identify a target as Iron if it is sure it is. An iron target will chatter or null out when the loop is passed over it. At the same time, the

Iron meter will deflect to the right. If the I.D. circuitry cannot tell whether the target is truly iron (too small or too deep) it will not

distort the audio signal and the meter will not deflect. This was designed to avoid the possibility of rejecting gold nuggets and help to

identify most iron trash. It should eliminate a large percentage of unnecessary digging.

Remember that even the best systems can be thwarted in very extreme situations. It is always best to test the system in each location

to see if the ground mineralization will allow it to function properly. Thus, used properly, it will eliminate the need to dig much of the

iron trash without the loss of gold nuggets. Conversely, there will be many locations where the iron mineralization is not extreme and

the Iron I.D. toggle can be put in the On position. In this position, the l.D. function will be active at all times during the searching

process. Iron targets (not too small or too deep) will distort the signal (chatter or break up) and deflect the meter needle to the right.

All nuggets and unidentifiable pieces or iron will give the same "good" zip-zip response, and NON - IRON meter indication (no meter

needle deflection).

Care must be taken when attempting to identify small targets in heavily mineralized ground. Even though the Goldmaster VI SAT is

designed to give a clear audio signal with no deflection of the meter when it passes over gold or any non-iron metal, it can give a

confused reading, slight chatter and slight deflection of the meter caused by a combination of a target and mineralization. If the loop

is extremely close to the target, a tiny nugget on top of the ground could indicate iron. When testing a small target, lift the loop a little

off the ground while still keeping the target within detection range, and test it. It should then give a good reading. It is wise to carry a

test nugget with you and place it just under the soil to see how the IRON I. D. Circuit reacts. In this way, you can determine the

reliability of IRON I. D. in the ground you are searching.

The ever-present "hot rock" will always present problems and must be contended with. It is my belief that they should be recognized

and thus avoided. Most large ones are on the surface and can be kicked aside when identified. You will soon learn what they sound

like. The "overshoot" or "boing" sound will soon become familiar. You can stop and balance each one out, but I find this unnecessary.

In some cases, over-ground balancing will reduce their interference. I find it best to tune to the majority of the ground matrix

and learn what a "hot rock" sounds like. The fast SAT of the Goldmaster V I SAT will recover quickly upon leaving the vicinity of a

"hot rock" and will remain sensitive to gold nuggets. Since there are different kinds of "hot rocks", it is almost impossible to eliminate

all of them with one setting. Some will be identified by the I.D. system as if they were iron. In every instance, practice makes perfect.

Some final tips on the operation of the Goldmaster V I SAT in reference to the interpretation of the audio and visual iron identification

function. As I mentioned earlier, I prefer to operate with the IRON I.D. toggle OFF, and to activate it when a target is detected.

This seems to be a more efficient way to operate. It is less confusing and easier to determine a real target (good or bad) from a false

target. Less confusing sounds and less distraction during the searching process makes it less likely to miss a target altogether. It

might be good to mention at this time, however, that after becoming more experienced with the IRON I.D. function, you might prefer

to operate with the IRON I.D. toggle set in the ON position. I found that I really preferred this after I got used to it. Operate in the

way you feel most confident.

I would also like to mention that caution must be exercised when using the GAIN control at the upper limits. Even though the ground

does not overload the loop at full GAIN "10", you might experience some false signals operating at this high level and you will best

reduce GAIN to smooth out the performance. The GOLDMASTER VI SAT has much more power than most detectors you have

probably been accustomed to and I have found that lower levels of GAIN have given excellent depth in most areas.

In most cases, a definite iron target will bang the needle full scale and the audio will be distorted. However, in some instances, a good

audio might be heard in conjunction with a partial movement of the needle. This can be due to a fringe response. Iron or mineral

contamination can cause this meter response and thus, in cases where the audio and meter disagree, GO WITH THE AUDIO. You

will soon learn to interpret the audio and meter and how they relate by digging everything for awhile. It should also be understood

that once a target is located, sweeping the loop directly over the center will produce the most accurate IRON I.D. indication. Locating

a target, pinpointing it, then placing the IRON I.D. in Test, and sweeping directly over the center will actually save time when you

consider the time one could spend digging iron targets. No system is perfect, but this one will greatly reduce the amount of time

wasted digging iron trash in moderately mineralized areas if used properly, and will not miss the gold.

It should be understood that IRON I. D. is not a traditional discriminator. The detection depth of the GOLDMASTER VI SAT is not

reduced by operating in the IRON I. D. mode. All targets within range of the detector will be heard by the operator. In both IRON

I. D. ON or OFF positions only the type of audio response changes, ZIP - ZIP sound for good targets, BROKEN for iron with meter

movement. No depth is ever lost by utilizing IRON I. D., the only danger could be in misunderstanding the identification of a target.

Reducing the GAIN control, and slowing the loop sweep speed, directly over the center of the target, will increase the accuracy of

IRON I. D. audio and visual indications. Remember, when in doubt - DIG!

Good Luck and Good Prospecting!

Jimmy "Sierra" Normandi

GOLD

Chemistry; Au.

System; Cubic symmetry.

Habit; Crystals rare, usually as grains, or dendritic (treelike structure) shapes and rounded nuggets.

Colour; Yellowish - golden, with increasing silver content becomes much paler.

Streak; Yell ow - gold.

Cleavage; None, (unpredictable shapes).

Fracture; Rough, malleable.

Hardness; Gold= 2.5 to 3.0 depending on purity. Finger nail= 2.5. Coin= 3.5 (harder than gold). Steel knife blade= 5.5.

Specific Gravity; Gold= 15.5 - 19.3 (relative density), depending upon purity. Quartz= 2.65. Pyrite= 4.8 to 5.2.

Luster; Metallic.

Special Features; Colour, very high Specific Gravity, non-tarnishing, malleable, insoluble in single acids.

Formation; Often with quartz in hydrothermal veins. Also frequently in placers and ·consolidated sands and conglomerates.

Distribution; Largest quantities from South Africa, India, Brazil, Bolivia, U.S.A., Mexico, New South Wales, &

Queensland Australia, Austria, The Urals (USSR), Leadhills (Scotland), North Wales, East Sutherland,

and Cornwall (UK).

Date: 2015-12-24; view: 777