How do manage unwanted signals?
In selecting an area to search for your chosen target, be aware that there may be samples of the same product out there, not within in your search area. The GT200 will lock the first signal it aligns with, not necessarily the nearest or strongest. You can get unwanted signals, such as reading back to something you have touched or used, or reading a colleague you have touched, or has touched you, because you have not taken enough care with the elimination of contamination. There are other things; trace elements of the substance you are seeking may be found on or in other objects. Some medicines contain drugs legally and can be detected. Nitroglycerine is an explosive and also used in heart medicines and can by pick up by our recognition signal for explosives. For these reasons it is important that all indications are put onto drawing of the area. Do not think that you will remember where they are; it is almost impossible. Take the point of the majority readings as your primary target se
