CORS “Giant” coil air test! (+why buy big coils)
First of all, i want to start off this article by saying that i am going to be reviewing/testing the CORS Giant coil for the AT Pro detector, but it is also available for a lot of other models.
If you read the previous post you will know this, but i will repeat it for those of you who haven’t. The CORS Giant Coil is a big coil. But what would you need such a big coil for? Well, this coil has its advantages over other coils, and as all coils some disadvantages. First of all: what are the advantages? When you are out detecting it gives you more coverage of the area, which means that when you swipe the coil, you search through a bigger area than with the smaller coils. More coverage is always good when you are searching in places like woods, fields, beaches and big parks. It may be a small disadvantage when searching sites with a lot of trash, because you will usually get a lot of “trash” signals disturbing the good signals if there are good objects close to the trash. I will do a test on metal separation with this coil later.
This coil also gives you much more depth, which is good for finding the deepest treasures, like old roman silver coins or deep golden rings;)
In summary, large coils are useful for finding coin hoards and deeply buried, large relics. Detecting with a large coil will give you the ability to cover a large territory, such as farm field, faster than with a smaller search coil. The “downsides” of large coils like this one over smaller coils are that it is usually heavier than smaller coils, and in heavy littered areas it will be harder to get a good signal. You will also have to dig deeper, but if you get a good find it is always worth it:) So keep this in mind when you are looking for new coils.
I think that a detectorist that spends some time detecting, should consider having a big coil in their “stock”.
But enough about that, lets get over to the air tests! Here is the video of the test: (Article continues below)
And here are the results of the test:
Standard AT Pro coil: CORS Giant coil:
- 5 Kopeek 1881: 26 cm 33 cm
- 2 Kronor 1876: 27 cm 34 cm
- 5 Kopeek 1788: 35 cm 43 cm
- WW2 Bullet: 32 cm 38 cm
- German Dogtag: 42 cm 57 cm
As you can see, the coin detection depth increased 7-8 cm, the bullet depth increased with 6 cm and the dogtag depth increased with 15 cm! What do you guys think about these results and this coil so far? If there are any questions, feel free to ask in the comment section!