I have upgraded from my Nokta Simplex+ to a Nokta Double Score which is a multi-frequency detector. I just tried the Double Score in my backyard and either I am doing something wrong or I just need to get used to the new detector. The problem is that the Double Score is almost constantly beeping when I am swiping over the grass. With Simplex+ in park mode and no discrimination, I would get beeps when the coil was over the target. With the Double Score in park mode (VDI is set from 12 up avoiding iron) the detector is beeping almost all the time. My backyard is probably not very clean but I can't believe I have targets every 5 inches. I have a really hard time to pinpoint where the target actually is. Any ideas?
Got new SMF detector and I don't think I am using it right
- Thread starter drabina
- Start date
How high sensitive you running. Did you noise cancel.
How does detector sound lifting off ground holding still and listening.
Diga
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The Double Score is more sensitive than the Simplex. In addition, the DS being SMF is much more open to EMI. As TNS mentioned, hold the coil off the ground. Do you hear chatter? If so, switch to the single frequency of 40khz. If the chatter is significantly reduced, then you're encountering EMI. Switch back to SMF then run the noise cancel (which will probably do very little), then reduce your sensitivity until there is only a little bit of chatter.
So, the problem is most likely EMI in combination with using a more sensitive detector.
So, the problem is most likely EMI in combination with using a more sensitive detector.
Sensitivity is at 8 (10 is max). I did not noise cancel (not sure how to do it to be honest). When I lift the coil up in the air, the noise stops. I am assuming that I am either doing something wrong or have an incorrect setting or two. I just got the Double Score so it is new to me.
Diga
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Make sure your coil connection on the pod is tight. Make sure your coil wire isn't flopping around above the coil. Also drop your sensitivity to 6 or 7 and see what happens. Try the "F" discrimination pattern to disc out iron. If all that doesn't work, factory reset it. If you still have the problem, do you have another coil to try?
Other than that, I can't be certain that you aren't actually hearing targets. My backyard is a machine gun of targets. Most of which is nails and screws.
I just thought of something else...if I remember correctly, I think the notching on the Simplex is reversed black and white compared to the Score line and Legend. You said you were discing out, so maybe you've actually disced out almost everything except iron, and you're hearing all the iron?
Other than that, I can't be certain that you aren't actually hearing targets. My backyard is a machine gun of targets. Most of which is nails and screws.
I just thought of something else...if I remember correctly, I think the notching on the Simplex is reversed black and white compared to the Score line and Legend. You said you were discing out, so maybe you've actually disced out almost everything except iron, and you're hearing all the iron?
I understand you are new with your machine.
Read manual.
Learn how to noise cancel.
Learn how to ground balance.
Try to use your detector in a few different locations.
Make sure coil cable is secure on your control box.
And have cable secured somehow to shaft I.e.like wrapping cable around shaft. Not flopping around.
I do have triple score so somewhat familiar with your unit.
As far as pinpoint goes.
Find clean spot bury a target about 5-6 inches and se how the pinpointing goes, you’ll know basically where your target is and be able to see how detector reacts using pinpoint.
Actually you need to read the whole manual.
Might be good idea to take manual with you on at least some of your first outings.
Diga
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I think you do indeed have your disc reversed and are accepting 1-10 (iron) and 11/12 (almost always small foil). If I used that disc pattern in my backyard, I would hear targets every few inches as well.
MasonDixonMding
Elite Member
Everyone’s ideas sound correct to me. I’m not saying that this is the case but years ago I got my new detector out of the box and it had a bad coil. Wish you luck.
It sounds like you were too anxious to go play with your new toy to read through the manual. It could be as MD said and you have a bad unit. There’s no way of knowing until you learn this model to see if it’s user error. Hell, you haven’t even ground balanced it…
Diga
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I wish we would have heard back from Drabina by now.
Drabina has iron and small foil notched out, but since notch is reversed between the Simplex and DS, I'm almost 100% that Drabina did not know that, so the DS is actually accepting all the iron and small foil.
Maybe that's why we haven't heard back from Drabina lol.
Sorry for not updating. I haven't had a time to take the Nokta Double Score outside of my backyard until this past weekend. I know about the notching and it is set correctly. By default, the Double Score in park mode is ignoring 1-10 so I left it at that. I have two coils so doubt both are bad. What I had to do to get the detector to be quiet is to drop the sensitivity. On my Simplex+, I am usually using full sensitivity scale or one bar down. With the DS I need to be at 60% of the sensitivity scale. Otherwise I get a lot of noise all the time. So far, with the adjusted settings, I was able to get decent results. The only remaining issue is that with the DS it is harder to pinpoint the exact location but I may need to use the detector a bit more to get used to it. Same with the scale. Simplex+ has 1-99 and DS has 1-60. Need to re-learn all the target IDs.
Diga
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Drabina,
Previously you were using your custom disc notch pattern. When you did those custom notches, were you aware that on the DS the accepted ID numbers use black blocks. On the Simplex, the rejected ID numbers use black blocks? Although now you are using the F disc pattern, so we know for sure that iron is notched out.
What method do you use to pinpoint? If you are using the typical pinpoint method that most manuals say to use, well there is a much better way to pinpoint called "detuning".
Previously you were using your custom disc notch pattern. When you did those custom notches, were you aware that on the DS the accepted ID numbers use black blocks. On the Simplex, the rejected ID numbers use black blocks? Although now you are using the F disc pattern, so we know for sure that iron is notched out.
What method do you use to pinpoint? If you are using the typical pinpoint method that most manuals say to use, well there is a much better way to pinpoint called "detuning".
Without any custom notching, when I switch the DS to the park mode, it notches out 1-10 I believe by default. I leave it at that.
When I pinpoint, I am usually scanning left to right moving the coil to and away from me looking for the strongest signal, then rotating 90 degrees and finding the same strong signal. X marks the spot (mostly).
When I pinpoint, I am usually scanning left to right moving the coil to and away from me looking for the strongest signal, then rotating 90 degrees and finding the same strong signal. X marks the spot (mostly).
Diga
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Ok, try the detune pinpoint method.
When you get a target and kind of "hone in" on it as we normally do, press your pinpoint button while your coil is kind of over the target. That will detune out most of the target so that instead of getting a long and vague tone for the pinpoint, you'll get a very short blip when you from left to right. While keeping the pinpoint button held down, then give a short movement of the coil from front to back. The target will then be directly below the center of the coil. Be careful though, because if you press the pinpoint button when the target is already directly under the center of the coil, the target will be completely detuned out and you won't even hear it in pinpoint mode.
That sounds kind of complicated, but it only takes a few minutes of pratice to nail down that method. Then, you'll be able to perfectly pinpoint the target in about 1 to 2 seconds.
One other thing. You may already know this, but elongated targets like nails will often pinpoint at one of its ends.
