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Test track or practical knowledge?

In the past, I had a lot of inquiries as to why I don’t have a test track. It doesn’t work for a simple reason. It doesn’t work. You can compare the cutters together on the same day and it will still be a demonstration test, not a comparative test. For a simple reason, external factors affect what happens to the detector. Temperature and UV radiation change everything, and if we add the processes taking place in the soil under the influence of these factors, we have a complete picture.

I remember one day we went to the old spot after the rain. The temperature dropped below 20 degrees Celsius and the ground was damp. Coins started popping up like mushrooms after the rain. A week later, at around 28 degrees, nothing came out, but the next week at 23 degrees, more came out!

We followed in our footsteps. In addition, there are EMI interferences, the quiet ones, and those we can observe. All you need is a transmitter to send data packets and you can go home. Half the trouble, as you can see and hear after the behavior of the device, unfortunately, the quiet EMI simply cuts off the possibility of detection, which I don’t even know about. At such a moment, it would be enough to put a coin on the surface and the device simply does not see it.

The heat causes the probe to drift, despite numerous patents compensating for this condition, from painting it white to changes in electronics or software. This is best heard after the lead signal if we have such an option.

Another example. XP DEUS II. The RELIC program is all set up for the seat. The first 20 minutes are brilliant. Stable audio, leading signal. After 20 minutes, despite detuning the interference every 20 minutes, it’s not fun anymore. I can clearly feel the deterioration of performance and stability. This can be seen in the lead signal, which clearly undulates when sweeping over a clean area … I mean conventionally clean because it is full of iron.

Also, only work in various conditions gives a full picture of the device, do not fall for the tricks of testers who have not devoted a minimum of 200 hours to the device in various conditions. Real knowledge comes after 2000 hours and then questions arise about what is a natural process.

I encourage you to ask questions in this article.

 

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Tracking or not Tracking?

Ground calibration is the basis for ensuring the detector’s operation in difficult conditions, it can be carried out manually or automatically. There is still Tracking, i.e. the function of continuous ground tracking.

Good on clean substrates where mineralization often changes over a short period of time. There is also a downside, false signals can be caught, and objects will need to be swept several times to generate the correct signal. Tracking can get completely lost on magnetic stones or with a lot of ceramics and iron. Large clutter also makes things difficult, it’s all a matter of work algorithms and accompanying filters. Values can be averaged and this is where false signals appear.

Manual tuning gives the greatest guarantee that the metal detector is properly calibrated to the ground. Unfortunately, there are also places where the amount of iron makes it difficult to calibrate manually and automatically, and then it is worth starting Tracking … just do it wisely.

We look at the values and if one value is scrolling all the time, just disable the ground tracking. Ready! We have the value we were looking for. The machine did it for us! It remains to check it from time to time. How? Simply pump the search coil over a clear spot, if the signal changes or you hear an excessive response from the ground, re-tune.

Good positioning is crucial for stable operation and proper signal for a given object and decent depth, and we must remember this every time.