Function Buttons
The CTX 3030 Control Panel has ve function buttons as follows:
• Noise Cancel
• Sensitivity
• Ground Balance
• Audio
• Menu/Select
AudioSensitivity
Ground Balance
Noise Cancel
Menu/Select
Figure 16 – CTX 3030 function buttons
Each function button performs three actions depending on which screen is
currently active, and whether you ‘press’ or ‘press and hold’ the button.
1. Press and hold to open the function Quick Menu.
2. Press from the Map or Detect screens to return to the last used function.
3. Press from the menu screens to move around the screen or adjust settings.
Noise Cancel
The Noise Cancel function allows you to eliminate electromagnetic interference
(EMI) or noise from the detector.
The CTX 3030 may become noisy due to electrical interference from power lines,
electrical equipment or other detectors operating close by. The detector interprets
this interference as inconsistent, erratic detections. Noise Cancel can be performed
automatically (default) or manually.
Auto Noise Cancel instructs the detector to automatically scan and listen to every
channel, and select the one with least interference.
Open the Noise Cancel Quick Menu
1. Press and hold the Noise Cancel button to display the Noise Cancel Quick Menu.
The available options are:
• Auto (default)
• Manual
Noise Cancel
ʯ Press from Detect or Map to
perform Noise Cancel
ʯ Press and hold at any time
to display the Noise Cancel
Quick Menu
ʯ Press from the menus to
activate the UP arrow
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