GroundHunter Advanced 8FT High Sensitivity Metal Detector With Headphone and Carry Bag

$359.99 $277.99
$277.99

If you do not have prior experience with a metal detector, we strongly recommend that you:

  • Adjust the Gain to a low setting in the event of false signals.
  • Do not use indoors.This detector is for outdoor use only.Many household appliances emit electromagnetic energy, which can interfere with the detector. If conducting an indoor demonstration, turn the Gain down and keep the search coil away from appliances such as computers, televisions and microwave ovens.
  • If your detector beeps erratically, turn off appliances and lights.
  • Also keep the search coil away from objects containing metal, such as floors and walls.
  • Use a 9-volt ALKALINE battery only. Do not use Heavy Duty Batteries.

Introducing GroundHunter Advanced 8FT High Sensitivity Metal Detector


GroundHunter Advanced 8FT High Sensitivity Metal Detector is unique among gold prospecting metal detectors for its combination of high sensitivity to small gold nuggets and its versatile function as an all purpose treasure detector.

The controls and features are tailored to gold prospecting, including a sophisticated ground balancing system, separate control over signal gain and threshold, and an unique discrimination control system.

These features also make for a great relic-hunting detector. While the GroundHunter makes fora highly competent coin-shooting detector, its user interface and features are not specifically designed for this purpose.

As a coin-shooter, you will notice that the GroundHunter exhibits slightly lower sensitivity to high-conductivity coins, like a U.S. quarter; this is a result to fits specialized design to emphasize sensitivity to small, low conductivity metals like gold nuggets.

TX850
 

Device Specifications

  • Mechanical: S-rod with electronics housing on rod, 3-piece breakdown construction, nonmetallic telescoping lower rod, adjustable position armrest
  • Weight: 2 lbs, 8 oz with battery installed
  • Standard search coil: 11 inch search   coil
  • Batteries: Single 9 volt rectangular alkaline
  • Operating principle: VLF induction balance
  • Operating frequency: 19 kHz, crystal controlled
  • Reactive overload: 10,000 micro-cgs (with standard search coil)
  • Resistive overload: 1,200 micro-cgs (with standard search coil)
  • Ground balance range: From ferrite to salt water inclusive
  • Discrimination ground suppression: Combination of 2 nd and 3 rd order methods
  • Target-ID ground suppression: 3 rd order
  • Battery life: 15+ hours on good quality alkaline
  • Operating temp range: 14 to 122 degrees F (-10 to +50 C)
  • Operating humidity range: 0 – 90% noncondensing

 

SEARCH TECHNIQUES


Target Verification
After detecting a target, do the following:

  1. Walk around the target in a circle.
  2. While circling the target, continue sweeping the search coil across the target.
  3. Sweep once every 30° or 40° of the circle.

If the tone does not change and the Target-ID value is consistent as you circle the target, you can be highly confident of the target’s identification.

If the tone or Target-ID changes as you circle the target, you may have multiple targets or an irregularly shaped object.
If the tone completely disappears at different angles, the target may be trash or a low- value metal.

If you are new to the hobby, dig all targets. With practice in the field, you will soon be able to correlate audible and visual target feedback with certain types of metal objects.

Pinpointing in Discrimination Mode

  1. Sweep over target in narrowing side-to-side pattern.
  2. Take visual note of spot on ground where “beep” occurs.
  3. Step 90° to the side of the target.
  4. Sweep search coil over same area, at 90° to 1st sweep pattern.
  5. This pinpoints the target location with an “X”.
TARGET PINPOINTING

After you have identified a target using Discrimination Mode, press-and-hold the PINPOINT button to identify the target’s exact location. This technique can yield more information about the target’s shape and size and also find its exact location to facilitate extraction.

Pinpoint As Follows:
  1. Position the search coil just barely off the ground, and to the side of the target.
  2. Now move the search coil slowly across the target; you can locate it by the sound. The target is located directly under where the sound is loudest.

Narrow It Down:
  1. To narrow the response further, position the center of the search coil near the center of the response pattern, but not directly over the center.
  2. Release the PINPOINT button.
  3. Press-and-hold PINPOINT button again.
  4. Repeat this narrowing procedure to narrow the field of detection further.

Note: Depth indication is less accurate after narrowing.

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GroundHunter Advanced 8FT High Sensitivity Metal Detector With Headphone and Carry Bag
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