please explain detuning?

[Anonymous]

I've been having extreme problems pinpointing targets.It's like my entire coil is sensitive to deep targets even when holding coil 6" off the ground.I still get a reading across the full face of coil.Any ideas?Do I detune above target or to the side of away from targets.How many times do I push the pinpoint button?

 

[Anonymous]

Basically after you get a signal move your coil off to the side click the pinpoint several times and hold it down and go over target and you will see target has shrunk for easier pinpointing.No specific number of times just click several times, if you click while over target you may detune it completely. Takes a bit of practice but is easily mastered and does increase your pinpoint accuracy...this may affect the depth meter so if you wish get an aprrox. depth before you detune...

 

[Anonymous]

A way you can get the picture of detuning is you can practice it like this.
Put a target on the ground lets say something big enough to get a signal off it when swinging the coil about 8 to 10 inches above it.
Now hold the coil above the target say around 6 or 7 inches high with the pinpoint pushed now you swing over the target and get a pinpoint signal.
Lower the coil to about 4 inches above the target and release and push the pinpoint again without swinging the coil . Now when swinging the coil you may not hear the target until you lower the coil just a little and have a narrower signal off the target , for sure you shouldn't hear it at the 6 inch height.
Now lower the coil to say around 3 inches over the target release and press the pinpoint while not swinging over target just holding still over it. Now you loose or detune the target again. You get so you can't hear it at 4 inches. Now lower the coil to just about on top of the target with the pinpoint held and you get a very narrow signal off the target and only while very close to it. You can end up being able to pinpoint targets as small as beebees.
You must remember to do the last ratchet tune while still with a little room left above the ground for still lowering your coil that last time , otherwise you will be completely detuned with no way of getting a signal off the target by lowering the coil.
For instance in pinpointing something several inches in the ground. If you detune and loose the target you simply just atart over again.
You will find the exact hot spot on your coil for pinpointing also. ( some people never locate the "exact hot spot on the coil) It can be an area of only an inch across even though it "may be near" the center of that big 5inch hole in your coil.
Each time you hold still and push the pinpoint you get a new detune position as you lower the coil in steps. Each time you held the coil still over the target with the pinpoint release and then pushed it again (and hold it pushed)you did a detune and will have to lower the coil to hear a fresh signal that is smaller in size but plenty loud when you get the coil closer to the target by lowering it.
This is nearly same type of thing happens when you are away from the target but on the ground. Only problem is if there happens to be something else in the ground besides your target you can end up detuning on it and may not be able to get a signal until you put the coil up in the air away from everything and start all over again. by releasing the pinpoint button and trying to do a pinpoint again.
The thing I mentioned about lowering the coil in stages and releasing and pressing the pinpoint button has been called ratchet tuning with other detectors. The 1266x was excelent at ratchet tuning pinpointing. I do it with my cz , and most all my other detectors when I want an exact pinpoint usually on a small target , other wise just x'ing the target in id mode works most the time.
HH
Dan R.

 

[Anonymous]

Jim,
In really trashy areas it is hard to do. That said, its really quite easy. Simply place the coil just to the side of the suspected target and push and hold the P/P button. If its still too broad sounding place the coil a little closer to the center of the target area and try again. You should be able to get it right down to a quick little blip as you pass the coil over the target. If not, its gotta be something REALLY big. Practice it a few times and you'll get it. <img src="/metal/html/smile.gif" border=0 width=15 height=15 alt="">
HH Tom

 

[Anonymous]

back when I really used the pinpoint button, was to slowly approach the target with the coil flat on the ground. I'm talking really, really, slow, about and inch a second. Then, I'll start rapidly pushing and releasing the pinpoint button (think double-clicking a computer mouse, only 3 or 4 times), finally pushing and holding the pinpoint button the final time. I could usually get a really tight pinpoint on a shallow penny, usually about an inch in diameter.
Sometimes, when you try to pinpoint a target, you'll accidentally place the coil directly over a different target. This is an extreme example of detuning, detuning to the point that you can't detect anything else.
HH from Allen in MI

 

[Anonymous]

Well Jim it looks like you got some pretty good explanations about detuning and pinpointing all forms of that ratchet type tuning either over or from the side of the targets.
What do you think so far maybe give it a try and let us know.
HH
Dan R.

 

[Anonymous]

Thanks to all for the advice.I'll have to wait till the first of the month when I get my check to buy new batteries and then I'll try them out.