Just wondering if there are any tricks when switching from the stock coil to a smaller coil to get the same results. I know not to expect the same depth but the id is not even close unless it's fairly shallow. In the 3-4 in range. The depth readings are way off also, i use that in parks as a good reference to dig or not. Have tried auto and manual sens. and it doesnt seem to matter. thanks...
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Question on coil changes......
- Thread starter bleeohio
- Start date
Captain Kirk
New member
Cody,
My experience on the 7.5" coil is that it is not accurate on ID. The detector does not know what coil you have in place. My understanding is that the Explorer II is calibrated for the stock coil and will read indicate excessive depth on the 7.5" coil.
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Edited
I meant to say that the 7.5" coil is not as accurate in the depth indication as the stock coil. Having said that, I am not particularly pleased with the depth indicator accuracy using the stock coil (especially for depths less than 6"). Like Cody, I pay much more attention to the loudness of the tone rather than the depth gauge.
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I am surprised to hear that you detect quarters in the 10" to 12" range with the small coil.
HH,
Glenn
My experience on the 7.5" coil is that it is not accurate on ID. The detector does not know what coil you have in place. My understanding is that the Explorer II is calibrated for the stock coil and will read indicate excessive depth on the 7.5" coil.
*************************
Edited
I meant to say that the 7.5" coil is not as accurate in the depth indication as the stock coil. Having said that, I am not particularly pleased with the depth indicator accuracy using the stock coil (especially for depths less than 6"). Like Cody, I pay much more attention to the loudness of the tone rather than the depth gauge.
*************************
I am surprised to hear that you detect quarters in the 10" to 12" range with the small coil.
HH,
Glenn
Buzzz (Southern Tier NY)
New member
My experience on the 7.5 or 8" Coils subtract approx. 2" from the depth gauge, on Coils larger than the Stock Coil add approx. 2".
If you are finding quarters with the 7.5 or 8" Coil at 10-12 inches...They are really at a depth of 8-10 inches, which is approx. anyway !!!!!!!! Well, what's an inch or two among friends............
If you are finding quarters with the 7.5 or 8" Coil at 10-12 inches...They are really at a depth of 8-10 inches, which is approx. anyway !!!!!!!! Well, what's an inch or two among friends............
I have always been amazed that others don't. I see no difference in the stock coil and the small coil other than ground coverage. I has guessed that user are not adjusting the threshold, Audio Gain, Sensitivity, properly and using the correct sweep speed. I don't know but once in a while will see a post that states they also get the same depth with both coils. I draw a blank in these areas and cannot explain what I thought was common to all the detectors I have used. Again the only advantage between stock and smaller coil has been ground coverage and the amount of ground noise and stray RF. I don't even bother with the larger coil anymore. I don't know about coils by other manufactures. The only ID problem I have seen is if an after market is used then the reading will be off. I have not use the stock coil for anything other than relic hunting in so long I actually don't recall when that was. I have two Explorer 2s, one with a stock coil and one with the 8" or 7.5" if that is more accurate in describing the actual size. I just round it off to 8" but it is the 7.5 I guess.
Sometimes the posts baffle me as my Explorer performs completely different such as an area like this. I realize you know what you are talking about and trust other do and have the experience to know how the machine operates. There are times when I think I may be wrong so will go test it all over again to be sure. I easily detect a quarter to 10 to 12 inches with the 7.5 which is a deep as I care to dig which is another reason why I don't bother with the stock coil.
I use standard off the line Explorers so cannot account for anyone not getting the same depth other than geographic location hunted and how we set the machine up. I doubt it is setting am grasping for straws for an answer.
Sometimes the posts baffle me as my Explorer performs completely different such as an area like this. I realize you know what you are talking about and trust other do and have the experience to know how the machine operates. There are times when I think I may be wrong so will go test it all over again to be sure. I easily detect a quarter to 10 to 12 inches with the 7.5 which is a deep as I care to dig which is another reason why I don't bother with the stock coil.
I use standard off the line Explorers so cannot account for anyone not getting the same depth other than geographic location hunted and how we set the machine up. I doubt it is setting am grasping for straws for an answer.
I forgot to address the depth gauge in that I don't pay much attention to that as it is only an estimation. The only thing I really look at is if it is ultra deep or all black or just a tiny bit of clear at the top. I use the Audio Gain modulated at 4 so go by sound and just refer to the gauge out of habit.
I'm using a sunray 8 in. And the difference is big time noticable in the id. As i said i don't expect the same depth or coverage with the smaller coil but the id has me baffled.The depth readings i can live with but i'm afraid to trust the id once the depth hits 5 in or more. i have upped the gain and experimented with the sens. a bit and i havent hit on the right combo. Is it possible that somethings not right with the coil? Thanks
I don't have experience with that coil. I do know that some coils will get good depth but will not ID accurately as do the factory coils. This has been somewhat common as far back as I can recall with different coils. It can also be the the coil you are using has a problem. I would contact Ralph at Sunray as he is a great guy and can give you the answer about the coil.
Captain Kirk
New member
Cody,
I did not express myself very well about the behavior of the small search coil. I edited my post as follows:
*************************
Edited
I meant to say that the 7.5" coil is not as accurate in the depth indication as the stock coil. Having said that, I am not particularly pleased with the depth indicator accuracy using the stock coil (especially for depths less than 6"). Like Cody, I pay much more attention to the loudness of the tone rather than the depth gauge.
*************************
I am not questioning your statement about the 10" to 12" on the quarter with the small coil. I was just surprised. I have not used the small coil for over a year and a half. I was pleased with the performance of the small coil, but went back to the stock coil for greater coverage. I was perhaps mistaken in assuming that the smaller coil would not have as great a depth capability as the larger coil. While hunting inland I have not dug quarters as deep as 12" with the stock coil. But, I easily dig quarters at 12" with the stock coil at the beach.
Forgive me if I seemed too fussy.
HH,
Glenn
I did not express myself very well about the behavior of the small search coil. I edited my post as follows:
*************************
Edited
I meant to say that the 7.5" coil is not as accurate in the depth indication as the stock coil. Having said that, I am not particularly pleased with the depth indicator accuracy using the stock coil (especially for depths less than 6"). Like Cody, I pay much more attention to the loudness of the tone rather than the depth gauge.
*************************
I am not questioning your statement about the 10" to 12" on the quarter with the small coil. I was just surprised. I have not used the small coil for over a year and a half. I was pleased with the performance of the small coil, but went back to the stock coil for greater coverage. I was perhaps mistaken in assuming that the smaller coil would not have as great a depth capability as the larger coil. While hunting inland I have not dug quarters as deep as 12" with the stock coil. But, I easily dig quarters at 12" with the stock coil at the beach.
Forgive me if I seemed too fussy.
HH,
Glenn
I look forward to the discussions. I was thinking this afternoon it could be that depth for us is like the size of a Bass for fishermen. I have thought for years that the best size coil for coin hunting is and 8" coil or something close to that. If there is a lot of trash then a 5". I thought they put the larger coil as stock to include relic hunting and to cover more ground. I don't know how true that is but somewhere on the way I was comfortable enough that I don't think about it unless something like this comes up.
We are kind on our own in so many areas as the manufactures just don't care to get into how there detectors work or exactly what is best. I guess is falls in promotions, sells, and keeping the other guy guessing. If there was a technical book on the Explorer by the Minelab engineers I would be standing in line all night to buy one if there was a line. Ha
When I first went to a smaller coil after lugging around a big one way back in the seventies I recall it looked like I had a tiny little lid on the end of my detector. Now it is the other way around in when I use the stock coil I wonder if ground coverage is worth the effort. If the stock coil gets a few more inches on a quarter I still don't think I would use it hour after hour for coin hunting. BUT there are a lot of thinks that get old at 64 that use to seem easy when I was in my younger years. Many of us know how that is for sure.
We are kind on our own in so many areas as the manufactures just don't care to get into how there detectors work or exactly what is best. I guess is falls in promotions, sells, and keeping the other guy guessing. If there was a technical book on the Explorer by the Minelab engineers I would be standing in line all night to buy one if there was a line. Ha
When I first went to a smaller coil after lugging around a big one way back in the seventies I recall it looked like I had a tiny little lid on the end of my detector. Now it is the other way around in when I use the stock coil I wonder if ground coverage is worth the effort. If the stock coil gets a few more inches on a quarter I still don't think I would use it hour after hour for coin hunting. BUT there are a lot of thinks that get old at 64 that use to seem easy when I was in my younger years. Many of us know how that is for sure.
Buzzz (Southern Tier NY)
New member
n/t