DirtAngler
New member
Are you finding more coins using a smaller coil due to unmasking or are you finding more coins using a bigger coil and going deeper?
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In your situation are you finding...
- Thread starter DirtAngler
- Start date
Yes. 
mapper65
Member
I think you have to look at this two different ways. If I'm in an area that is not very trashy I will find more coins with the 10.5' coil because of more coverage. If the area is moderate to extremely trashy i would like to think that I would probably do better with my 6" coil.
Depth seems to be just slightly less with the 6" coil. Lately i haven't been finding coins much deeper with the 10.5 than what I do with the 6". Just depends on the area that you are working in and what's been left behind.
Depth seems to be just slightly less with the 6" coil. Lately i haven't been finding coins much deeper with the 10.5 than what I do with the 6". Just depends on the area that you are working in and what's been left behind.
pescadore
Well-known member
I received my 6 inch HF DD coil today and took it to the park today for the first time. Last time out at the park with the 5x10, I found 11 cents in about an hour. Today recovered a couple bucks in clad. Every target was from the middle of a very trashy area. I am sure that I would not have found most of them without the 6 inch coil. I cant say anything about the depth of the 6 inch because the targets I found today were shallow ( less than 4 inches.).
My situation (and opinion) may be different than others. But having hunted this part of the Country for the past 40 years, with virtually every detector known to mankind, my opinion is that there are more old coins hiding out there due to adjacent targets, opposed to extreme depth. We've had detectors that would hunt deep for decades. But todays technology allows us to neutralize the effects of mineralization, automatically select a channel that is least affected by interference, isolate individual targets and provide a pretty accurate TID on most of them. As such, I've been able to go into places I've hunted dozens of times and sort out targets from trash, using the small DD coil. JMHO HH Randy
TURNMASTER
Active member
I am finding that I get more coins with the 6"DD and the 5x10. Depends on the situation but they both work well and I find the narrow width of the 5x10 will get a lot of coins but I still miss many and can re hunt with the 6" and pull more coins.
Jeff
Jeff
DirtAngler
New member
Ok, today I hit a yard where the house dates back to around the Civil War era. The yard is loaded with iron. Not knowing which coil to use since I don't have the 6" DD coil, I went with the 10.5" MF DD coil. Got 2 wheat pennies and 2 Indian Head pennies nothing deeper than 6", but really had to rotate around the iron signal to find the good signal. Did pull a Barber quarter at 3" when I just did a quick hunt to check it out previously. My buddy was using his XP Deus and pulled 2 wheats and 1 IH. No silver though but I think it's there just masked. Will the 5x10 HF coil help more than the 10.5 MF coil? Was tempted to go with the 9" 3khz concentric but didn't think it would separate as well.
OK. I wasn't rying to be smart with my first post in this thread. But, the answer to your question is more like answers to your questions.
It all depends on the site. If the site is clean, then a large deep seeking coil will yeild the best finds. If the site is trashy, then the smaller coils and DD configuration coils will find more. Since lower frequencies penetrate the ground better, and will hit on coins harder than the higher frequencies, the smallest lowest frequency coil that you have will likely do best. Minelab has let us X-Terra users down by not producing (or licensing anyone else to) a small low frequency coil. Currently, the smallest lowest frequency coil avalable officially is the 6" 7kHz concentric.
That said, and to answer your last queston, the 5X10 DD might work a little better due to it's slightly narrower slice that it looks at than the 10.5" DD. But since both have about the same length detection field, the resulting difference won't be stunning. The MF DD will give the most honest TID's between the two, so if you give it shot with the HF 5x10, be prepared to listen to the tones more closely or dig more rusty bottlecaps.
It all depends on the site. If the site is clean, then a large deep seeking coil will yeild the best finds. If the site is trashy, then the smaller coils and DD configuration coils will find more. Since lower frequencies penetrate the ground better, and will hit on coins harder than the higher frequencies, the smallest lowest frequency coil that you have will likely do best. Minelab has let us X-Terra users down by not producing (or licensing anyone else to) a small low frequency coil. Currently, the smallest lowest frequency coil avalable officially is the 6" 7kHz concentric.
That said, and to answer your last queston, the 5X10 DD might work a little better due to it's slightly narrower slice that it looks at than the 10.5" DD. But since both have about the same length detection field, the resulting difference won't be stunning. The MF DD will give the most honest TID's between the two, so if you give it shot with the HF 5x10, be prepared to listen to the tones more closely or dig more rusty bottlecaps.
TURNMASTER
Active member
I had to drop the 10.5 MF DD today for the 5x10. The bigger DD simply would not run. It was wacked. I was getting wildly fluctuating GB numbers and am not sure what the issue was. As soon as I went to the HF coil things smoothed out and became very stable. After the coil change I was GBing at 14 to 17.
Now here is my theory; What I believe is that the HF coils handle the hotter soil just a little bit better. I also think they handle EMI better. Add into that the fact that the coil sees a smaller slice of the ground and the machine can handle the ground balance better.
My own experience is that I do better with the 5x10 and could have lived without the 10.5 MF DD coil. I will not sell it off for a while as I still plan on using it some more and giving it every opportunity to excel, but I am finding that it does not seem to hunt the majority of my sites as well as either the 5x10 or the 6"DD.
It will always come down to site. soil and interference. Well, and most important skill level.
Jeff
Now here is my theory; What I believe is that the HF coils handle the hotter soil just a little bit better. I also think they handle EMI better. Add into that the fact that the coil sees a smaller slice of the ground and the machine can handle the ground balance better.
My own experience is that I do better with the 5x10 and could have lived without the 10.5 MF DD coil. I will not sell it off for a while as I still plan on using it some more and giving it every opportunity to excel, but I am finding that it does not seem to hunt the majority of my sites as well as either the 5x10 or the 6"DD.
It will always come down to site. soil and interference. Well, and most important skill level.
Jeff
mapper65
Member
jimz49 said:
In my area, Western Pennsylvania, I find that the high frequency does just a little better job. I find more can slaw and less nickels with the MF. I've done well with both but I seem to do better with the HF. Like I've said in the past, if I completely cover an area with the MF coil and I go back over it with the HF coil, I will find a notable amount of additional coins. If I completely cover an are with the HF coil and then go over it with the MF coil, I will find a minimal amount of additional coins.
It's probably not a direct comparison when you compare the 6" coils because of the MF being a concentric coil and the HF being a DD. Of all of my coils, my least used coil is the 9" factory concentric which has not been on the detector in two years and I think I've only had the 6" MF coil on once or twice in the last year. It's my opinion that the DD coils are just that much better that the concentrics regardless of frequency.
One last note. With the 10.5" coils, I have to decrease my sweep speed a decent amount w hen using a medium frequency coil. It seems like it just does not react as quickly as the HF coil.