Underwater Metal Detectors
The underwater metal detector is considered now one of the more innovative of treasure hunting concepts. Detecting underwater is loved by many adventurers due to the peaceful quiet you experience as well as the feeling of weightlessness owed to the water carrying you along. It tends to be a relaxing experience and one that, if inclined towards treasure seeking, you must undertake. Get yourself ready to take that plunge.
There are three main types of underwater metal detectors: Pulse Induction (PI) metal detectors, Very Low Frequency (VFW) metal detectors and Broad Band Spectrum (BBS) metal detectors. The design or type of the underwater metal detector selected would be based on your personal style of treasure hunting. The Pulse Induction metal detectors transmit electronic pulses to the ground. These pulses are highly sensitive to precious metals. A PI detector is best suited for salt water beaches and diving, as the pulses do not get affected by the water and sea water minerals. However the PI detector has limited discriminating abilities against metals that are precious and ones that are trash. The Very Low Frequency metal detectors are particularly sensitive to coins, relics and jewelry. The VLF detector has higher discrimination abilities against objects considered to be useless items, but the VLF circuit is however affected by the mineralization of the ground. The Broad Band Spectrum metal detectors transmit signals in numerous frequencies concurrently. The one dissimilarity between the VLF and the BBS detectors are the fact that the VLF detectors can only transmit one signal at a time. In selecting the metal detector that best suits one's needs, you need to identify where you aim on hunting, in salt water or fresh water. If the hunting will be conducted in salt water, investing in a PI and BBS underwater metal detector would be the best choice for you. If you do decide on a VLF detector, make sure it is in salt water mode.
Having had a basic idea on the different underwater metal detector types available in the market, let us now look into how and where one would go about using these instruments. The most typical scenario at which an underwater metal detector would be used would be in diving or even wading in waist deep water. When diving, you will need to consider how deep your dives will be, and compare it with the depth rating of the detector. The depth rating is not how deep underground the object would be able to penetrate for hunting, but how deep in the ocean or river the object can be used.
It is little known that there are more lost coins and jewelry in the oceanic and river grounds than there in current circulation. Imagine the excitement you would feel in pulling out one of these lost treasures from the ground in one of your underwater adventures. Treasure hunting with an underwater metal detector is sure to bring about numerous hours of good natured fun combined with exercise. Happy hunting!