Chatter

[tony369412]

Hey my 800 is very chattering in the field any suggestions thanks
Tony from CT

 

[don tyler]

Could be near cell towers. or street wires . turn down sensitivity change frequency.

 

[TheMetalDetective]

I assume that the first thing you do before detecting is a noise cancel. If it is still very chattery, then you will need to back off on the sensitivity setting. You could be near some EFI or highly mineralized soil.

 

[Donna(NJ]

Hey my 800 is very chattering in the field any suggestions thanks
Tony from CT

Wiggle the coil wire and makes sure nothing is loose or broken

HH
Donna(NJ)

 

[marcomo]

Tony, welcome to the not-so-wonderful world of electromagnetic interference. The Equinox is a high gain detector that, unfortunately, is quite prone to EMI. The advice you got above is good, obviously make sure your all your connections are tight and secure. Always do a noise cancel, which is recommended every time you start detecting and also anytime you notice the chattering has gotten worse. Occasionally the noise cancel will clear up or at least reduce the chattering, but not usually. Still, it's always the best option to try first because it only takes a few seconds and if it works you won't have any performance loss.

If noise cancel doesn't help at that point you can try switching modes. In theory, the modes with less emphasis on the lower kHz frequencies should usually be less prone to EMI. In practice, I find that changing modes doesn't usually help much if at all.

There are two things that often will mitigate EMI for me. The first is going to single frequency instead of multi. What I have encountered is that most of the time the EMI is by far the heaviest at 5 kHz (or 4) Going to a SF above 5 kHz will often do the trick. For detecting coins and other items that aren't very small, the lowest frequency that knocks it down equally with the higher frequencies works best. I haven't seen any depth loss in SF, but there is a negative...ID will be significantly less accurate than in multi. Equinox ID accuracy is below par in single frequency.

The other option that usually helps is going to a smaller than stock coil. The Nox sniper coil is much less prone to EMI than the stock coil. Again though, there are disadvantages in areas that aren't especially busy. Less depth and less coverage with the small coil.

As others have said, turning down the sensitivity until the chatter goes away or gets down to a level where you can work through the noise will also work. But if I have to lower the sensitivity below the default level of 18, I'm always going to look to go SF or small coil.

Another option is to carry a back up detector with you that is less EMI prone. Tom Dankowski, a highly regarded detectorist and engineer, has been known to carry a CZ-3D as a backup for when EMI plagues his Nox.

 

[Odanscoils]

Wiggle the coil wire and makes sure nothing is loose or broken

HH
Donna(NJ)

I tape my coil wire straight up the lower shaft like minelab has done for years on All my machines. Coil wire fixed going up lower shaft. At least on the Explorer's.
Just leave enough room for full coil movement.
Like this.

 

[Odanscoils]

Tony, welcome to the not-so-wonderful world of electromagnetic interference. The Equinox is a high gain detector that, unfortunately, is quite prone to EMI. The advice you got above is good, obviously make sure your all your connections are tight and secure. Always do a noise cancel, which is recommended every time you start detecting and also anytime you notice the chattering has gotten worse. Occasionally the noise cancel will clear up or at least reduce the chattering, but not usually. Still, it's always the best option to try first because it only takes a few seconds and if it works you won't have any performance loss.

If noise cancel doesn't help at that point you can try switching modes. In theory, the modes with less emphasis on the lower kHz frequencies should usually be less prone to EMI. In practice, I find that changing modes doesn't usually help much if at all.

There are two things that often will mitigate EMI for me. The first is going to single frequency instead of multi. What I have encountered is that most of the time the EMI is by far the heaviest at 5 kHz (or 4) Going to a SF above 5 kHz will often do the trick. For detecting coins and other items that aren't very small, the lowest frequency that knocks it down equally with the higher frequencies works best. I haven't seen any depth loss in SF, but there is a negative...ID will be significantly less accurate than in multi. Equinox ID accuracy is below par in single frequency.

The other option that usually helps is going to a smaller than stock coil. The Nox sniper coil is much less prone to EMI than the stock coil. Again though, there are disadvantages in areas that aren't especially busy. Less depth and less coverage with the small coil.

As others have said, turning down the sensitivity until the chatter goes away or gets down to a level where you can work through the noise will also work. But if I have to lower the sensitivity below the default level of 18, I'm always going to look to go SF or small coil.

Another option is to carry a back up detector with you that is less EMI prone. Tom Dankowski, a highly regarded detectorist and engineer, has been known to carry a CZ-3D as a backup for when EMI plagues his Nox.

This is where I suggest learning to identify and even pinpoint radio interference.

https://www.findmall.com/threads/rfi-detector-electronic-interference.363083/

 

[marcomo]

Excellent information, Odanscoils. Thank you for sharing!

 

[Odanscoils]

Excellent information, Odanscoils. Thank you for sharing!

Your quite welcome.
Do try it. That little $25 Sony is great at this.
Let me know.

 

[tony369412]

Tony, welcome to the not-so-wonderful world of electromagnetic interference. The Equinox is a high gain detector that, unfortunately, is quite prone to EMI. The advice you got above is good, obviously make sure your all your connections are tight and secure. Always do a noise cancel, which is recommended every time you start detecting and also anytime you notice the chattering has gotten worse. Occasionally the noise cancel will clear up or at least reduce the chattering, but not usually. Still, it's always the best option to try first because it only takes a few seconds and if it works you won't have any performance loss.

If noise cancel doesn't help at that point you can try switching modes. In theory, the modes with less emphasis on the lower kHz frequencies should usually be less prone to EMI. In practice, I find that changing modes doesn't usually help much if at all.

There are two things that often will mitigate EMI for me. The first is going to single frequency instead of multi. What I have encountered is that most of the time the EMI is by far the heaviest at 5 kHz (or 4) Going to a SF above 5 kHz will often do the trick. For detecting coins and other items that aren't very small, the lowest frequency that knocks it down equally with the higher frequencies works best. I haven't seen any depth loss in SF, but there is a negative...ID will be significantly less accurate than in multi. Equinox ID accuracy is below par in single frequency.

The other option that usually helps is going to a smaller than stock coil. The Nox sniper coil is much less prone to EMI than the stock coil. Again though, there are disadvantages in areas that aren't especially busy. Less depth and less coverage with the small coil.

As others have said, turning down the sensitivity until the chatter goes away or gets down to a level where you can work through the noise will also work. But if I have to lower the sensitivity below the default level of 18, I'm always going to look to go SF or small coil.

Another option is to carry a back up detector with you that is less EMI prone. Tom Dankowski, a highly regarded detectorist and engineer, has been known to carry a CZ-3D as a backup for when EMI plagues his Nox.

what a wonderful reply thank you so
Much

 

[5900_XL-1]

I tape my coil wire straight up the lower shaft like minelab has done for years on All my machines. Coil wire fixed going up lower shaft. At least on the Explorer's.
Just leave enough room for full coil movement.
Like this.

I started doing this wrap style a long time ago too. It always "gets me" when I watch a Utube presented by a manufacturers rep introducing a new metal detector, and their wire along the shaft couldn't have been looser unless they tried to do it on purpose. It just makes no sense but hey, it's their sales.

Velcro straps are you friend.

 

[Picketwire]

If it chatters while above the ground and while detecting, it is EMI.l If it only chatters while moving over the ground, there are remedies that work much better.