oldranger said:
Ok Folks here we go ...
GTI1500
- LOW tone to me is iron
- MEDIUM tone to me is from foil to
next to a penny
- Belltone is Belltone
I'm just trying to relate tones to targets on the GTI so i have a better idea of what might be in the ground.. does
ANYONE understand what Im trying to ask?
Thats right - it really is that simple. One thing about the Garretts - you don't have to think too much. That is by design.
Now, if you are discriminating iron you wont get the low tone - but you might get the cursor jumping to iron and the other signals burping and bonging as a result. You have to have iron accepted to get the low tone. One of the tricks I use is to switch back and forth bewteen ZERO disc and DISC mode. This is useful when you are getting a lot of erratic responses.. 8 times out of 10 you'll find there is some piece of iron nearby.
In other words im trying to understand the terms like HARD hit or Soft etc etc
There is little of such "subtlety" with the Garretts. You have to think in terms of "short" of "long" on the new Garretts, like the 1500. Garrett detectors today have a deep target boost built in; Garrett used to call it "Power Master" circuitry a decade ago. It is now standard on all their detectors. This is a good thing on deep targets, but it also means that everything tends to hit with the same, strong audio. This is in contrast to other makers that use an analog model, which softens the audio response as target depth increases.
However, Garrett offers an ingenious method to help discern things. What they do is make it so that deep items, or small bitsies like shoe eyelets, will give short/small "blips," as opposed to the soft audio found on detectors with modulated audio.
Shallow and large items will give a response that is longer/larger. The difference between a quarter and small silver earring is that while they'll hit in the same TID range, they will give different
length audio responses.
Here's a real world scenario: Imagine you are in a deep woods, relic hunting. Since there isnt much trash, you have your Garrett GTI 1500 at high SENS to punch down through the layer of leaf mold and into soil. You get occasional strong hits that turn out to be can tops and wads of copper sheet. But along with these you are hearing small, short blips that ID in the mid to high range. When you hit your pinpoint, you see they are at depths of 6"-7" - you want to dig these small, short signals!
This short-long audio response is a fundamental difference with the Garretts, and can be bothersome to those who come from the amplitude modulation school of thought. You just have to get used to it.
RLTW[/quote]
