Sensitivity; Ground Balance; Open The Ground Balance Quick Menu - Minelab CTX3030 Instruction Manual

Sensitivity

ʯ Press from the Detect or
Map screens to adjust the
Sensitivity setting
ʯ Press and hold at any time
to display the Sensitivity
Quick Menu
ʯ Press from the menu screens
to activate the LEFT arrow
NOTES
In Auto Sensitivity the detector
is able to operate at a higher
sensitivity level than you are able
to achieve for the same noise
level.
Most Beaches are non‐mineral-
ized, therefore greater depth can
be achieved using the highest
stable Manual Sensitivity.

Ground Balance

ʯ Press from the Detect or Map
screens to return to the last
used GB function
ʯ Press and hold at any time
to display the Ground
Balance Quick Menu
ʯ Press from the menu screens
to activate the DOWN arrow
CTX 3030 Instruction Manual
Function Buttons
Sensitivity
Sensitivity controls the detector's response to received signals. These signals can
include desirable signals from nearby metal, as well as undesirable signals from
electronic noise, and noise due to ground response. Increasing the sensitivity level
may make targets more detectable but may also increase detector noise due to
these noise influences.
When set to Auto Sensitivity, the detector continuously measures the response
from magnetic ground and sets the sensitivity level in order to minimise the effects
of these ground signals. If there is no magnetic ground (non-mineralized ground),
e.g. on most beaches, AutoSensitivity has nothing to measure and can therefore
be unreliable. In these conditions Manual Sensitivity should be used. When set to
Manual Sensitivity, you can adjust the sensitivity setting to your desired level.
Sensitivity, this is the sensitivity level that the detector would suggest using, given
the current conditions.
The large number on the left of the panel displays the current sensitivity level. In
Manual Sensitivity, this is the level that you have set, and in Automatic Sensitivity
this is the internal value that the detector is currently using.
Adjust Sensitivity Settings
1. Press and hold the Sensitivity button to display the Sensitivity Quick Menu. Choose
from the following options:
• Sensitivity (Auto/Man)
• Auto Level (Range -3 to +3)
• Manual Level (Range 1-30)
2. Use the arrow buttons to highlight the required setting and press Select.
Ground Balance
Ground Balance (GB) allows you to easily adjust the detector to suit detecting in
highly mineralized ground. In these conditions, correctly adjusted Ground Balance
will help to find deeper targets that might be hidden by ground noise, as well as
helping to stabilize target IDs. Ground Balance is best used in conjunction with
Coin-Ground Target Separation.
Ground Balance should not be enabled in most detecting conditions where ground
mineralization is mild. This includes most beaches, parks and sports grounds.

Open the Ground Balance Quick Menu

Press and hold the Ground Balance button from the Detect or Map screens to open
the Ground Balance Quick Menu. The available options are:
• Enable GB
• Start GB
The Sensitivity Panel can optionally be displayed on
the Detect Screen.
The green number on the right of the panel shows
the suggested sensitivity level. If you select Manual
21