The Role of Audio Tones in Metal Detecting: How to Interpret Them

The Role of Audio Tones in Metal Detecting: How to Interpret Them

Introduction

Metal detecting is an exciting hobby that requires patience, skill, and a good metal detector. One of the essential components of a metal detector is the audio tone, which is what signals the presence of a metal object buried in the ground. Understanding the different audio tones is crucial to identifying the type of metal and the depth at which it is buried. In this blog post, we will discuss the role of audio tones in metal detecting and how to interpret them.

The Three Types of Audio Tones

Metal detectors produce three types of audio tones: high, medium, and low. Each tone represents a different type of metal and can help you determine the depth at which the object is buried.

When metal detecting in areas with high mineralization, it can be helpful to use a pulse induction (PI) metal detector instead of a traditional frequency-based detector. PI detectors can better handle mineralization and provide more accurate audio tones.

High Tone

A high-pitched tone usually indicates the presence of non-ferrous metals such as silver, copper, and gold. These metals are excellent conductors of electricity and have a higher frequency response. A high tone may also indicate a shallow depth of the object.

Medium Tone

A medium-pitched tone generally signifies the presence of ferrous metals such as iron and steel. These metals have a lower frequency response and are not as conductive as non-ferrous metals. A medium tone may also indicate a moderate depth of the object.

Low Tone

A low-pitched tone usually indicates the presence of deeply buried ferrous metals. These metals have the lowest frequency response and are the least conductive. A low tone may also indicate a deeper depth of the object.

How to Interpret Audio Tones

Interpreting audio tones takes time and practice. It is essential to listen carefully to the tones and understand what they represent. Here are some tips to help you interpret audio tones:

1. Practice listening to the different types of tones by burying different types of metal objects at various depths.
2. Adjust your metal detector's sensitivity and discrimination settings to optimize the audio tones for the type of metal you are searching for.
3. Pay attention to the duration of the tone. A longer tone may indicate a larger object, while a short tone may indicate a smaller object.
4. Use headphones to block out ambient noise and hear the tones more clearly.
5. Take notes on the types of tones you hear and the objects you find to improve your skills over time.

Conclusion

Understanding the role of audio tones in metal detecting is essential to becoming a successful detectorist. By learning to interpret the different tones, you can identify the type of metal and the depth at which it is buried. With practice and patience, you can hone your skills and become a master at interpreting audio tones. Happy hunting!

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