Electromagnetic Interference (EMI) Noise
In metal detecting, 'EMI noise' refers to electrical or
electromagnetic interference from sources such as
power lines, electronic devices, or other detectors.
This interference can cause false signals,
inconsistent readings, reduced sensitivity, and
difficulty in pinpointing targets, leading to confusion
and potentially hindering the detection process.
Auto Noise Canceling and how it works
Auto noise canceling technology in metal detectors is
a sophisticated process that enhances the accuracy
of detection by filtering out unwanted interference.
Initially, the detector "listens" to all available
frequencies or channels, scanning the environment
to identify where the noise or unwanted signals are
coming from, much like scanning radio stations to
find static. The detector's internal algorithm consists
of specific rules and patterns that recognize the
particular patterns resembling interference. Once
identified, the detector picks the quietest frequency
or channel, where the noise is least pronounced, and
aligns itself to that frequency. By doing so, it
minimizes responsiveness to the noise and
maximizes focus on genuine metal signals. This
process of scanning, identifying, and aligning
ensures that the detector can operate in various
environments, providing clear readings and reducing
false detections, even in areas filled with electronic
devices or power lines.
How to perform a Auto Noise Canceling
1. Hold the detector still and keep the coil off the
ground.
2. Press and hold noise canceling button.
3. Wait about 10 seconds until the speaker remind
with a beep and the LCD shows OK.
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