Here are some general rules of thumb for the sounds your detector makes in discriminate and all-metal (VCO pinpointing mode). Although I write this article from an MXT perspective, this post should more or less also apply to many other detectors with modulated audio.
1. When you get a loud signal in discriminate mode and the pinpoint signal is loud--?
It is usually a large target near the surface.
2. If you get a loud signal in discriminate mode and a much weaker signal when pinpointing--?
It is usually a large target deeper.
3. If you get a good signal in discriminate mode and an extremely weak signal when pinpointing --?
It is usually a tiny target or a very deep coin size target.
Also some hot rocks and coal burnt items mimic this same sound (a little practice in this area helps).
4. If you get a good signal in discriminate mode and a clear pinpoint signal (average sound)--?
Then dig. This is usually a coin size item at average depth.
This is what many of us train their ears to.
5. If you get a weak signal in discriminate mode and also a weak pinpoint--?
This is the "cream of the crop signal" for deep target hunters.
Unfortunately some small shallow objects also mimic this sound.
Take out 3" to 4" of dirt and if the signal is still weak it is probably a deep target.
Pay close attention to those soft signals (also called "whispers" by many).
6. One way signals--these sound good on the first sweep in discriminate mode (in one direction but not in the other --backsweep, etc.).--?
When pinpointing you may get an extremely loud pinpoint and write it off as trash--DON'T!---Many times it is a good target next to a piece of trash.
Dig out the trash and look for the good target.
Experiment with some of these targets to see how your detector reacts.
7. Semi broken signals-- On the first sweep in discriminate mode you get a signal that tries to punch through the discrimination setting (usually a half to 3/4 signal).--?
This occurs in places of EXTREME trash. Swinging the coil at different angles and sweep speeds can help isolate the signal and gives you a better idea whether to dig or not.
Tässäpä on hyvä opiskeltava tieto englannin taitoisille ja muille toki voi tarvittaessa hieman suomentaa,jos tarve tulee.
kolikoita ja saat vakaan 36 näytön niin 90 prosenttia löydöistä on ruostuneita kruunukorkkeja. Kun löydön tarkistaa prospecting-tilassa ja saa jollain lailla 'pätkivän' äänisignaalin niin prosentti lienee enää 60. Tämä on vielä vähän MUTU (mustatuntuu) tason huomio .
