Understanding the Garrett Ace 400 Metal Detector
The Garrett Ace 400 represents a significant upgrade from its predecessor, the Ace 350, offering enhanced detection depth, improved discrimination, and a more powerful search coil. This metal detector has earned its reputation as one of the best entry-to-intermediate level detectors on the market.
Key Features at a Glance
The Ace 400 comes equipped with a 8.5″ x 11″ DD search coil that provides excellent ground coverage and depth. The detector operates at 10 kHz frequency, which is higher than many competitors in its class, making it particularly effective at finding smaller targets like gold nuggets and jewelry.
The control box features a clear LCD screen that displays target identification, depth readings, and battery life. Five distinct audio tones help you distinguish between different types of metals without constantly looking at the display.
Performance Capabilities
In field tests, the Ace 400 consistently detects coin-sized objects at depths of 8-10 inches in moderate soil conditions. The detector’s electronic pinpointing feature allows you to accurately locate targets within an inch or two, saving significant digging time.
The adjustable frequency feature helps eliminate interference from other electronic devices and mineralized soil. This is particularly useful when detecting near power lines or in areas with high electromagnetic activity.
Getting Started with Your Ace 400
Initial Setup and Assembly
Setting up your Ace 400 is straightforward. The detector comes in three pieces that quickly assemble without tools. The camlocks ensure a secure connection between the upper and lower shafts while allowing for easy disassembly when needed.
Adjust the length of the detector so the armrest sits comfortably under your forearm when the search coil is on the ground. This ergonomic positioning reduces fatigue during long detecting sessions.
Understanding the Control Panel
The control panel is intuitively designed with clearly labeled buttons and a large LCD screen. The menu system is straightforward, allowing you to adjust settings without consulting the manual repeatedly.
The sensitivity control lets you fine-tune the detector’s response based on ground conditions and target size. Start at mid-range sensitivity and adjust based on your specific detecting environment.
Mastering the Detection Modes
Preset Search Modes
The Ace 400 offers five preset search modes: Zero-Disc, Jewelry, Custom, Relics, and Coins. Each mode applies different discrimination patterns to help you focus on specific types of targets.
The Zero-Disc mode detects all metals, which is useful when searching for gold nuggets or when you want to avoid missing any potential targets. The Jewelry mode eliminates most iron targets while accepting most precious metals.
Custom Mode Optimization
The Custom mode allows you to create your own discrimination pattern based on your detecting goals. This feature is particularly valuable when hunting in areas with high trash content or when searching for specific historical artifacts.
Experiment with different discrimination levels in your custom mode. Too much discrimination might cause you to miss valuable targets, while too little can result in digging numerous unwanted items.
Advanced Techniques for Better Results
Ground Balancing Techniques
While the Ace 400 has automatic ground balancing, understanding how to manually adjust this setting can significantly improve performance in mineralized soil. The detector includes a ground balance window feature that helps maintain stability in challenging ground conditions.
When detecting in areas with high iron mineralization, reduce sensitivity slightly and increase discrimination to maintain stable operation. This adjustment helps prevent false signals while maintaining detection depth for valuable targets.
Search Coil Techniques
Maintain a consistent height between the search coil and ground surface, typically 1-2 inches. Swing the detector in a controlled arc, overlapping each swing by about 50% to ensure complete ground coverage.
The DD coil design of the Ace 400 provides excellent target separation in trashy areas. This feature allows you to distinguish between multiple targets in close proximity, reducing the chances of missing valuable items among trash.
Accessory Recommendations
Essential Accessories
A quality set of headphones significantly improves your ability to hear subtle signals, especially in noisy environments. The Garrett ClearSound Easy Stow headphones are specifically designed for use with the Ace 400 and include a volume control.
A sturdy digging tool is essential for recovering targets efficiently. The Lesche Digging Tool is a popular choice among detectorists for its durability and effectiveness in various soil conditions.
Optional Upgrades
Consider purchasing a smaller search coil for improved target separation in trashy areas or a larger coil for increased depth in clean areas. The Garrett 5″ x 8″ DD coil is an excellent accessory for the Ace 400.
A protective cover for the control box helps prevent damage from moisture and impacts. The rain cover is particularly useful when detecting in wet conditions or near water.
Maintenance and Care
Regular Maintenance
After each detecting session, clean the search coil and stem with a damp cloth to remove dirt and debris. Check all connections and tighten any loose camlocks to ensure optimal performance.
Store your detector in a cool, dry place away from direct sunlight. Remove batteries if the detector won’t be used for extended periods to prevent corrosion.
Troubleshooting Common Issues
If you experience erratic behavior or false signals, check the battery level first. Low batteries can cause unstable operation. Also, inspect the search coil for damage or loose connections.
For persistent issues, perform a factory reset by removing the batteries for 30 seconds. This often resolves software-related problems without requiring professional service.
Where to Use Your Ace 400
Ideal Detecting Locations
The Ace 400 excels in various environments, from parks and schoolyards to beaches and old homesteads. Its versatility makes it suitable for both coin shooting and relic hunting.
When detecting on private property, always obtain permission from the landowner. For public lands, check local regulations regarding metal detecting activities.
Seasonal Considerations
Different seasons offer unique detecting opportunities. Spring often reveals targets that have surfaced due to frost heave, while fall can uncover items hidden by summer vegetation.
Winter detecting requires extra precautions. Frozen ground can damage your detector and make digging difficult. Consider using a smaller coil to navigate through snow more easily.
Comparing the Ace 400 to Other Models
Ace 400 vs. Competitors
Compared to similar models in its price range, the Ace 400 offers superior target separation and depth capabilities. The higher frequency operation provides an advantage when searching for smaller gold items.
The build quality of the Ace 400 exceeds many competitors, with robust construction that withstands regular use in various conditions.
Value Proposition
The Ace 400 represents excellent value for both beginners and experienced detectorists looking for a reliable, feature-rich detector without breaking the bank. The combination of performance, durability, and user-friendly operation makes it a smart investment.
Frequently Asked Questions
Battery Life and Power
The Ace 400 typically operates for 20-30 hours on a set of four AA batteries. Using rechargeable batteries can reduce operating costs over time.
Water Resistance
The control box is weather-resistant but not waterproof. Avoid submerging it in water, though it can handle light rain and wet grass without issues.
Final Thoughts
The Garrett Ace 400 metal detector offers an impressive combination of features, performance, and ease of use that makes it suitable for detectorists of all experience levels. Its ability to handle various detecting conditions while maintaining user-friendly operation makes it a standout choice in its category.
Whether you’re just starting your metal detecting journey or looking to upgrade from an entry-level detector, the Ace 400 provides the features and performance needed to enhance your treasure hunting success. With proper technique and regular practice, this detector can help you uncover a wide range of valuable targets in various environments.