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Noise Cancelling

F

Flambeaux

New member
Does anyone noise cancel while the coil is on the ground or does most people go by the book and hold it above the ground. Just curious, I've been told that holding the coil to the ground is the way to go because that's where you will be hunting...not the air. Any comments?
 
I have only owned my E-Trac a short while but my understanding for noise cancel is to find the channel that is the most free of interference from EMI's such as power lines and other electrical interference which does not emanate from the ground but the air. Also maybe to make sure the coil is away from possible targets in the ground. I'm to new with this machine to make any statements. So I just went out and run a test, 2 times in the air and 2 times with coil on the ground. I got channel 9 both times in the air and I got channel 9 once and channel 11 once with coil on the ground. So:shrug:
 
I'm about a 1 1/2 off the ground and I always do it as soon as I start and then again later if its a long hunt.
 
The Noise cancell is also about electromagnetic interference (in the air) I tend to be just above the ground and doubt that there is a real difference most of the time. But when hunting near certian power lines and transmition stations I will raise the coil 12inchs for noise cancell.

I heard that in the center of Utah there is a great triangle of electromagnetic distrubance called DetectorFreak....better noise cancell him first...ha ha ha lol lol lol .....

utahshovelhead
 
Well its interesting because "they" say to noise cancel even when the ground changes, or when you change your sensitivity. So the ground must play a part in it. Just strange to me you would hold it 12 inches above the ground to noise cancel if the ground changes. I might be missing something here
 
utahshovelhead said:
The Noise cancell is also about electromagnetic interference (in the air) I tend to be just above the ground and doubt that there is a real difference most of the time. But when hunting near certian power lines and transmition stations I will raise the coil 12inchs for noise cancell.

I heard that in the center of Utah there is a great triangle of electromagnetic distrubance called DetectorFreak....better noise cancell him first...ha ha ha lol lol lol .....

utahshovelhead
Click to expand...


More volume and better headphones will block out the "Detectorfreak" phenomenon
 
I noise cancel with the coil in the position I'm going to be hunting in, on the ground. I have it from a reliable source (yes you would know who it is) that this is the correct way to do it, despite what the manual says.
 
I do mine on the ground. I've always figured that's where my coil is gonna be 99.999999% of the time. I haven't noticed any difference. I get a kick out of Bryce on the Explorer forum. If he's in a hot streak he won't Noice cancel until his streak ends.

NebTrac
 
I noise cancel on the ground as well. Haven't noticed a difference.
 
There are tips on using the various Minelab models at minelabusa.com, Treasure Talk. One article suggests using Noise Cancel 2 combined with manual sensitivity for better results. Perhaps one of the channels is best for hot ground, another for Ag, etc.
 
I always Noise Cancel 12" in the air, and I always use Quick mask to make sure there are no metal objects in the ground under the loop. I Hunt with my son who has a different machine then I do and I never even know he's there but he says if I'm with in ten feet of him it drives his machine nuts. To me noise cancel has to do with out side interference such as EMI, power lines, micro waves and another machine like my son's hunting close to me. Most of the time those problems would come from the air not the ground unless you have buried power lines...and by the way I have run across buried power lines and no amount of noise cancel will get rid of that problem, drove my E-Trac nuts. Rick IL
 
tippyhound said:
I always Noise Cancel 12" in the air, and I always use Quick mask to make sure there are no metal objects in the ground under the loop. I Hunt with my son who has a different machine then I do and I never even know he's there but he says if I'm with in ten feet of him it drives his machine nuts. To me noise cancel has to do with out side interference such as EMI, power lines, micro waves and another machine like my son's hunting close to me. Most of the time those problems would come from the air not the ground unless you have buried power lines...and by the way I have run across buried power lines and no amount of noise cancel will get rid of that problem, drove my E-Trac nuts. Rick IL
Click to expand...

Rick I am from Illinois too.You need to get Andy's Sabisch on the Etrac.he will explain it very clear to you.You are losing inches on your depth what you are doing is setting your detector to run smoothly not detect deeply.It makes a great deal of difference to have the coil near the ground so when you noise cancel it can select the best set of freq to run in that ground and at the same time it reads the ground IR/resistance and nulls/Cancels the the noise the ground generates that's why minelabs can detect with even small coils so deeply.I would rather have a detector that detects deeply than one that hums around good popping surface clad.If you do not believe me and you are just setting for EMI why would you care if you have any metal under the coil.If you are in a field with no electrical devices around go ahead raise your coil it will probably be able to read the ground and select the best freq. but if you are in a park with electrical and you raise your coil you may set your detector for the local EMI and not the ground IR or resistance so the processor can subtract the ground noise thus eliminating the ground like hunting in air. Like hunting with the ground not there at all.This is why minelabs are different than all other detectors.
 
I don't see anything in Andy's book about noise canceling on the ground. Noise canceling is for EMI - the detectors automatic GB should continuously track and adjust for changing ground conditions. Even if the detector gets a ground reading from the noise cancel you could still get a good ground reading at a foot in the air, the ground is a huge target, a crushed pop can reads the same on the ground as it does a foot off the ground so I would assume the ground would to? Just my opinion.
 
I am glad you have Andy's book page 10 and 11 I wish I had bought it sooner than I did. Chapter on FBS and Smart Find-What sets Minlabs apart from other detectors.Run your sensitivity as high as you can I had to rehunt everthing I did last summer with Etrac and Safari because I was running in auto sensitivity.Went back in manual sensitivity found a lot of great coins at 7 to 10 inches that I missed.
 
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