Instruction manual
Sensitivity
14
Next, I check my Sensitivity setting. Sensitivity determines how strongly
the receive circuit of a detector responds to anything under the coil. By
anything, I mean the soil as well as any targets.
Sensitivity parameters vary with the model of X-TERRA you are using. The
305 range is 1 - 10, the 505 has a range of 1 - 20 and the 705 can be set
anywhere from 1 to 30. The dierence being is that the more setting options
available, the more “precisely” you can set your detector for your application.
Regardless of the model, if I am going to be detecting in a wide open area
with relatively few targets, I like to run my Sensitivity up as high as I can,
without causing false signals. These false signals are more apparent as the
sweep speed is increased or when switching directions with the coil. But
running it on the brink of being “too hot” allows me to obtain the maximum
depth of detection.
However, do not be misled into thinking that a higher Sensitivity always
results in more depth. In areas congested with adjacent targets, or areas
with high levels of mineralization, running a high Sensitivity can have an
adverse eect on the depth of detection.
Comparing Sensitivity to car headlights
I like to compare the Sensitivity of a detector to the headlights on a car. On
nights when the skies are clear and visibility is not obstructed, you are best
served with your high beams. They penetrate deep into the night, allowing
you to see everything that may cross your path.
Understanding your X-TERRA - Getting Started