Underwater Metal Detectors
Underwater Metal Detectors and Prospecting for gold and other precious metals can be a lot of fun. Nothing beats the feeling of investigating a signal to find out it’s a gold nugget. If you want to add an extra thrill, you might want to try underwater metal detecting. This will allow you to dive down and fully investigate a waterway. Keep reading to learn more about this hobby and some of the equipment that you need to start.
Why Start Metal Detecting Underwater?
The best place to start is by talking about why you might want to search for targets underwater. The most obvious answer is that it can be a lot of fun. You’ll be able to combine scuba diving with metal detecting. Though it will take a while to get used to it, once you do it will quickly become your new favorite hobby.
Another huge benefit is the ability that these areas are more difficult to explore than land-based sites. Because of this, there have been fewer prospectors going over the area. This increases the chances that you will make a valuable discovery.
You’ll be amazed at the wide range of items you can find. For example, you might be snorkeling off the beach and find a wedding ring that an angry bride had thrown into the sea. Or you might be in a river and unearth a bullet from the civil war.
Another reason to consider this hobby is that it will allow you to improve the environment. Many of these detectors will pick up on discarded metal trash. These won’t break down and will usually develop sharp edges. This can pose a health and safety risk, particularly if they are left in popular tourist places. Additionally, you will often be able to remove plenty of plastic. Though filling up a bag of trash each trip is a simple goal, it could have profound environmental impacts.
What’s the Best Place to Metal Detect?
If you are using a metal detector, there are a few locations that you might want to explore. First, you should try rivers. The flow of the water will help push potentially valuable items downhill. If you find the right river, you might even be able to find gold nuggets. Another benefit is that these tend to be relatively shallow. This ensures that you don’t need to go scuba diving.
Another good place to go underwater metal detecting is at the beach. This will give you a lot of flexibility. You can stick close to the shore. Or you can try scuba diving in deeper waters. Often, the further out you go the more you will be able to discover. For example, divers have been able to uncover shipwrecks.
A third option that you can explore is a lake. Many of these could be harboring important historical evidence. Plus, the water tends to be fairly tame. This makes diving and exploring the area a lot easier.
Before you start diving, check the rules on metal detectors. You won’t be allowed to prospect everywhere. Doing a little research can be a good way to avoid a costly fine.
Finding the Best Underwater Metal Detectors
The underwater detector you use is key. Without this, you won’t be able to find the targets to investigate. You might as well just be enjoying the view. So, what are some of the things you should be looking for in an underwater metal detector?
How the Underwater Metal Detector Works
The first thing to consider is the type of technology you are using. There are two choices. You can either use Pulse Induction (PI) or Very Low Frequency (VLF). Both of these have pros and cons. Let’s take a closer look at these technologies and the differences between them.
Let’s start by looking at PI and how it operates. In this case, it operates by sending an electronic pulse into the ground. It then stops and listens for the response. This will give you a good idea of where the targets are. It’s also going to be largely unaffected by things like underground minerals and high salt concentrations. The biggest weakness is its inability to discern between valuable and worthless items. Because of this, you might find yourself having to dig through more trash to get to the target.
On the other hand, the VLF will be better at filtering out junk signals. It does this by sending out a continuous sine pulse. This allows it to detect the changes in the magnetic field produced by these items. The higher frequency waves are better at locating objects that are close to the surface. The lower frequencies are better at finding those that are at a lower depth. Usually, you’ll be able to adjust these frequencies, so you’ll be able to find what you are looking for.
So, which one should you be using? This will often depend on the conditions that you are diving in. If there are a lot of minerals or salt in the water, it might be best to use a PI. This device will be better at filtering out these signals. On the other hand, the VLF will be better at identifying potentially valuable targets like coins.
Salt Water Mode
You’ll need to make sure that the detector is prepared for underwater conditions. Because of this, you should check that it will be able to cope with saltwater. If you don’t this can potentially get into the device and cause problems. Most detectors will be equipped with this function, but it’s best to double-check.
Depth
When searching for a good underwater metal detector, you’ll need to consider how deep it will be able to operate. This should be included as part of the product specifications. To find this information, look at the depth rating. This is the maximum water depth that the device can be used in.
Accessories
Next, you’ll want to consider the type of accessories that are included with the metal detector. Though you will be able to purchase these separately, it’s best if they all come with the detector. There is a range of accessories that you should be looking for. First, it can help to get underwater headphones. This will allow you to hear when you get a hit.
You might also want to use a dive pole. This will make it easier for you to hold onto the detector as you are swimming. You might also want to get a carry bag. This will make carrying and transporting the detector a lot easier. We’ll discuss this in more detail later.
Price
Lastly, it’s important to consider how expensive the metal detector will be. Understandably, you want to avoid spending too much money. But it’s best to pay a little to get something which you know will be able to last for a long time.
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