Fajnie było by wiedzieć jakie są wskazania na ekranie . Więc rozumiem za cewka 13 jest najbardziej optymalną ? 9.5 dużo traci z głębokości? Jak jest z separacja na 13?
@@nufrii I know, depending on separation and resolution, but I'm really interested how deep can they see those small targets in a clean, not trashy area
@@bartoszdudek4744 for trashy area need 9.5'' or 5x7'' and frequency 24 or 44kHz . For extreme conditions, you don't have to worry about depth. The advantage of GM detectors is that they have good recovery speed and great depth at the same time, due to 60% analog technology even in GM7
@@nufrii I get it, know about it, got GM4 and Tangra with 3 coils, and other analogs. But still, I wonder what's the difference for that kind of objects with GM7, at a clear site. Sometimes the conditions change suddenly even at one field, some parts are trashy, and some are not. Many people often go for short huntings just with one coil. That's why I wonder what's the difference on depth, for those cases. Would be best od you make similar short movie for small target to show us :)
Large coils work well at low frequencies for big targets .18'' Fighter S works well at 15kHz and lower, eg 4kHz , 13x11 works well at frequencies 13-22kHz (for medium targets) , 9.5'' works well at higher frequencies 18kHz to 40kHz. For example, a multi-frequency detector emits frequencies of 4-40kHz, but you have one size coil connected to detector (for example, 11''), this means that an 11'' coil is effective only at frequencies of 10-18kHz, the other frequencies are not emitted effectively. I have in mind that in order for a multi-frequency detector to be fully effective, a multi-size coil must be attached to it...but such does not exist. If you do a test with the EQ900 at multifrequency with 11'' coil and after at 15kHz you will not see a difference.