II/ CTX 3030 “Trade-offs”

As with any detector, getting the best performance from the CTX requires that the operator understand and mediate a number of “trade-offs”.  These consist of a choice and one or more ways (adjustments or method changes) that allow you to affect that choice:

Noise / Stability

-can you hear and identify targets?

-is the machine getting as much depth as possible?

-choices:  Auto Sens / Manual (reduce), Open or Closed Screen. (see below).


Auto Sensitivity versus Manual

Characteristics of Auto:

Plus: stable, less falses / cross-feeds / “clean” responses, better target ID

Minus: less depth / harder to acquire targets / less awareness of ground conditions & changes / may drop Sensitivity level too low in extreme ground ie. “ black sand.” / constant changes represent more for the machine to deal with.

Characteristics of Manual:

Plus: deeper / sharper responses / better “notch” capability for closed programs / gives you the ability to run at the “limit”/ gives you a better idea as to what the ground conditions require. / alerts you to more marginal signals

Minus: less stable / more falses, cross-feeds / needs more attention to coil control /

more likely to be too high for the conditions / more “partial” responses need to be checked.

Open Screen versus Closed Screen Methods

Characteristics of Open Screen:

Plus: generally deeper / more small & odd shaped targets , chains, earrings / allows “full” audio on responses (complete and accurate).

Minus: less stable / less distinct target sounds / requires more attention to coil control / more checking of  cross-feeds, falses, “partial” target sounds.

Characteristics of Closed Screen:

Plus: more stable / allows higher Sensitivity levels / sharper audio / alerts you to good responses in trash.

Minus: less depth / “sluggish” responses / harder to acquire targets / some targets are only heard partially (bottlecaps for example).

From: “The CTX 3030 Gold Hunter’s Guide” by Clive James Clynick