Fisher Research Labs F22

Questions and Answers

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Belinda WestJul 27, 2025
Why does my Fisher Research Labs Metal Detector chatter or beep erratically?
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  Edward HumphreyJul 27, 2025
  If your Fisher Research Labs Metal Detector chatters, beeps erratically, or has low sensitivity, it could be due to several factors. First, make sure you are using the detector outdoors. Using it indoors can cause interference. Also, move away from power lines. If you are using two detectors, keep them at least 6 meters (20’) apart. Finally, environmental electromagnetic interference may be the cause. In this case, reduce the sensitivity until the erratic signals cease.
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Yvonne TaylorAug 2, 2025
What to do if Fisher Research Labs Metal Detector display does not lock on to one Target-ID?
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  Dustin JenningsAug 3, 2025
  If your Fisher Research Labs Metal Detector display doesn't lock onto a Target-ID or emits multiple tones, it might be due to multiple targets being present. Try sweeping the coil at different angles. Another cause could be highly mineralized soil, so try moving to a different area. Also, the sensitivity might be set too high; try reducing it.
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Carmen WillisAug 11, 2025
Why is the speaker volume low on my Fisher Research Labs F22?
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  Sarah GoodmanAug 11, 2025
  If your Fisher Research Labs Metal Detector has low speaker volume, it could be due to a discharged battery. Replace the battery. Another cause could be using the wrong type of battery. Make sure to use alkaline batteries.
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Brandon GriffinAug 19, 2025
What to do if my Fisher Research Labs F22 has no power?
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  Melvin SimpsonAug 19, 2025
  If your Fisher Research Labs Metal Detector has no power and no sounds, it could be due to a dead battery. Replace the batteries. Another cause could be that the cable is not connected securely, so check the connections.

Summary

Terminology and Definitions

Key Metal Detecting Terms

Defines essential terms like Discrimination, Pinpointing, and Ground Cancelation.

Detector Components Included

List of Detector Parts

Lists all components that come with the Fisher F22 metal detector.

Detector Assembly Instructions

Connecting the Main Assembly

Step-by-step guide for assembling the main parts of the detector.

Searchcoil and Stem Attachment

Instructions for attaching the searchcoil and adjusting stem length.

Important Assembly Cautions

Key warnings and precautions to follow during detector assembly.

Stem Adjustment and Cable Connection

Securing Stem Connections

Detailed steps for locking the middle and lower stems together.

Connecting the Searchcoil Cable

Properly route and connect the searchcoil cable to the control housing.

Battery Management

Battery Type and Installation

Recommended battery types and the procedure for installing them.

Battery Life and Indicators

Information on battery usage duration and how to interpret the battery level indicator.

Quick-Start Demonstration Guide

Demonstrating Core Features

Walkthrough of key features like modes, notch, depth, and pinpoint.

Fundamentals of Metal Detecting

Understanding Detection Principles

Explains ground minerals, trash rejection, target identification, and depth estimation.

Detector Operation Techniques

Managing Interference and Sweeping

How to mitigate EMI and the correct technique for sweeping the searchcoil.

Searchcoil Specifications

Details about the 9-inch waterproof searchcoil.

Controls and Display Overview

Understanding the Control Buttons

Explanation of the purpose and function of each button on the control panel.

Interpreting the Display Screen

Guide to understanding icons, numbers, and indicators on the detector's display.

Detailed Display Information

Target Category and Depth Indicators

How icons and depth graphics represent detected targets.

Overload Warning and Resolution

Understanding and resolving overload conditions.

Menu System and Settings

Volume and Sensitivity Adjustments

How to adjust speaker volume, FeTone, and sensitivity settings.

Advanced Menu Features

Notch and Search Mode Configuration

Configuring notch settings and selecting different search modes.

Custom Tone Programming

Guide to programming custom audio tones for the Custom Mode.

Pinpoint Functionality

Using the Pinpoint Feature

Detailed guide on using pinpoint, narrowing, and managing coil drift.

Target Identification System

Understanding Target IDs and Tones

How Target-ID numbers, visual indicators, and audio tones identify targets.

Target-ID Reference

Coin Reference Chart

A reference table for Target-IDs of common coins and artifacts.

Interpreting Depth and Target Display

Reading Target Information

How to read the display for target identification and depth, focusing on silver and gold.

Target Category Interpretation

Interpreting Zinc, Copper, and Silver IDs

Understanding how various metal types register on the display.

Display Interpretation Cautions

Important notes and limitations regarding target indication accuracy.

Headphone Jack Usage and Safety

Benefits and Safety of Headphones

Explains the advantages of using headphones and important safety precautions.

Detector Capabilities and Limitations

Environmental and Target-ID Factors

Discusses waterproofing, soil conditions, utility line limitations, and Target-ID accuracy factors.

Troubleshooting Common Issues

Resolving Signal and Volume Problems

Solutions for common issues like erratic signals, low sensitivity, and low speaker volume.

Display and Power Troubleshooting

Troubleshooting steps for display issues and lack of power.

Regulatory Compliance

Information regarding FCC compliance and radio interference resolution.

User Conduct and Warranty Information

Treasure Hunters Code of Ethics

Guidelines for responsible and ethical treasure hunting practices.

Warranty Registration and Service

Information on warranty registration, coverage, and return procedures.

Available Accessories and Kits

Accessory Items Overview

Details on various accessories like carry bags, headphones, and replacement parts.

Gold Prospecting Kits

Description of the different gold prospecting kits available.