detuning the ace 250 ?

[cory in fla]

problay been asked a 100 times but what does detuning do and how do you do it ? I've had my 250 a couple of weeks and really have not been out that much with it but a couple of times, and i have noticed some times when i do push pp button instead of it making the loud noise going over a target it some times makes the same noise but really low sounding is this normal or have any thing to do with so called detuning ?

 

[khouse]

Probably. Detuning shrinks the target. This is a must to accurately pinpoint. First just push the PP button and quickly find the center of the target while scrubbing the ground with your coil. Once you think your close then move the coil about an inch away from that spot and re push the pp button and hold it on again. Now the target response should be a lot smaller. This will let you zero in on the target better. If you don't get a tone after you re push the pp button then just move your coil back to where the target is and re push. Sometimes I detune 2 or 3 times until I get the tone I want. After a while it just takes a few seconds.

 

[Mick in Dubbo]

I'll just add a couple of things to what Kenny has said. Detuning is used when you use the deep pinpointing method. When you use this method, you are using the cut out in the middle of the coil to locate your target. Practice it with a coin on the ground for a minute or so. It will be easy to learn. With a pit of practice, you will know exactly what to expect.
When you hear the detector go quiet on a target like you described, that is called a null. The 2 times that this will happen. 1) If you press the pinpoint button while over a bit of metal is still under the coil. 2) If you have a large peace of metal in the ground, and you go over a target after you have detuned the detector, then you will get that quiet signal. If you are a coin hunter, and you are going after individual coins, then you know that this is not a single coin. But if you are looking for a cache of coins that may be place in a tin, then you would dig it. But then you would be digging every iron hit that you get as well.
Mick Evans.

 

[cory in fla]

Thank you both, Khouse,Mick in dubbo for that vary helpful info i will practice this.thank you once again for replying back !!!thats also for any one that may reply also

 

[Uncle Willy]

Detuning reduces the size of the target. Just press pinpoint while over the target as you normally do then release pinpoint and press it again, as many times as it takes to reduce the size of the signal down to where you want it.

Bill