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Coinshooting / high trash deep coil

J

jgedde

New member
Here on Long Island, the sandy soil seems to allow coins to sink relatively quickly with time. I regularly find clad less than 25 years old that are at a depth of 4-5". I've found aluminum cans at 14" in undisturbed areas (how did they get that deep?).

Also, most sites around here are high trash areas - New Yorkers seem to have been slobs for as far back as I can dig - even rural Long Island.

Both being the case, I have a need for good depth and good trash rejection: I believe this to be a mutually exclusive requirement. Coinshooting is my main interest.

What would be the best coil choice with the V3? How much depth would I be giving up with the coil(s) you suggest? I'm guessing a concentric coil would give slightly more depth than a DD at the extreme expense of coverage.

Thanks,
john
 
Hi John, Your sandy soil would seem to indicate low or no minerals. If that is the case, I would go with a concentric over the "DD". I have been using the 5.3 and 9.5 and love em both. In really heavy trash the 5.3 is probably your best bet. As for depth loss, If you really don't have a mineral problem then you may get better depth than with a "DD".
Here in the Texas Panhandle we do have a moderate amount of minerals, but I have not felt that depth suffered a bit with the 5.3 and for sure not with the 9.5.
I really would like to see Whites build an 8" "E" series coil. That is nearly an ideal size for hunting close to sidewalks and getting plenty of depth.

Ya might see if your local dealer has a 5.3, they aren't priced too high @ 149.95.
John London
Amarillo, Texas
 
Hi John. Thanks for the reply. We do indeed have ground with very low mineral content. How much depth should I expect to lose with the 5.3 vs the 10" DD?

John
 
John, as I said earlier, in a low mineral situation, I think the 5.3 will surprise you. We do have some minerals here and still dig 8" coins easily with the 5.3. Reading this forum shows that V3 users
are making some amazing finds with the 5.3 loop. This Vision/V3 is one "Gutsy" metal detector and the search coils we have so far are a compliment to the Great design Whites has given us.
I really don't know how much depth, if any the 5.3 will give up in your situation, but I'll bet not much. Given the discrimination abilities of the concentric 5.3 coil vs the 10" DD, which does do better in minerals, I think your depth losses will be very low. Have no fear of using the small coil, you will be surprised at the goodies you will bring up. We will all be envious at the much older finds you will have compared what we have here in the west.
Good Luck!
John London
 
If you notice there is no 8" concentric coil for the DFX or MXT. For some unknown reason it can't be done. I know someone that built an 8" DD and it works great. Kellyco may have a DD as well but no concentric. I got a 5.3 V3 coil and it has great depth. 13" air test on my 10K wedding band. I tried it the other day but the area I was in was high minerals, burnt and non burnt coal, wall to wall iron so I think the 4x6" shooter would be better in this place but the 5.3 for low minerals should be deadly. Can't believe the depth they can get out of a coil that small, was unheard of in the past.

Jerry Talley
 
Hi Jerry, Yes I have noticed the lack of an 8" concentric in the "E" series lineup. Perhaps Carl or Steve will address the 8" concentric issue. The 10" DD is a wonderful coil, but it has to take a back seat to the concentrics when hunting coins in residential yards. DD's love iron and con's can work next to driveways and sidewalks with far less interference from the re-inforcement mat or re-bar. An 8" is nearly perfect in those situations and the DD can't get close enough.
I had not heard that Whites couldn't produce an 8" concentric. Seems a bit odd since they have produced other 8" coils.
Maybe they will favor us with an answer.
Thanks for your info.
John London
 
I use a 8 inch excellerator with good results at different places.I used it a lot on my DFX and got better depth than with the D2 coil in most areas.I havent used it alot with V2 but what i have was good. Yazoo
 
Thanks for the info Yazoo,
I haven't tried the excellerator, but I have heard very good things about them. If I was hunting relics or gold nuggets, the DD would be the way to go, but concentrics work so much better in yards/ next to hot sidewalks.
I have not tried the small Whites DD coil in a yard, but I expect there would still be a problem with getting close to the walk way or drive. I have found a lot of silver hiding right beside a sidewalk and the DD's usually miss them(silver coins) that close.
I am hoping that Whites will respond with a "yes we can build a concentric 8", or a no we can't and here's why. Their response will be good info regardless of the answer.
Thanks for your info.
John London
 
I would guess that they could make an 8" coil, especially if someone else can. The question is will they. Sometimes it's all about the economics of it. Maybe sales were too low on previous 8" coils. May not make sense to them. Just a guess though.
 
I tried to buy the 5.3" from kellyco but they said that it overloads on the v3 and convinced me to buy the 4 x 6....will get it soon.
 
Look on the mount EAR/TAB, and see that it has a "V" in the mod #

Jerry
 
I just got my 4 x 6....it's a tiny thing but I love it. It's gonna be my main coil in a lot of areas because I keep running into a lot of trashy sites. It's very precise and still has pretty good depth and is easier for pinpointing of course. I notice it does have the v (and an M?) on the bracket. Can't wait for the weekend to really try it out. I just went out back in the dark for a few minutes but didn't really get to test it out due to the tons of trash under the ground but you could see that it was picking out iron and other stuff. I'm not getting the emf problems either...had it at rx15 in the house but as long as I took it off of one frequency and put it back to 3, it quieted right down....seems opposite of what I've been hearing.
 
Hi,

Just a report of my own experiences over the last couple hunts of a residential yard in my home town. I think this is relevant to the thread.

Monday evening I got permission to search a yard of a mid-century house near a university campus. It has been a rental for some time now, and obviously had hosted many parties, by the number of bottle caps. Some areas of the yard below the grass level were red with rust, even though the bottle caps had long since disintegrated. Most of the clad coins came out red as well.

That evening, I used the 5.3 coil and the "Hi-Pro" program. I picked out a number of coins (nothing too exciting) but then decided to go to the "Deep Silver" program to discriminate out some of the bottle caps. By the end of the evening I had 63 coins, including 6 wheat cents and 15 clad quarters.

I returned on Wednesday, got permission again, and this time used the DD coil and started with the "Deep Silver" program. I pounded that yard going back and forth, north and south, east and west, believing that with 6 wheats from Monday, there must also be silver in there somewhere. I'll tell you, that DD coil loves those bottle caps. I was getting some very solid hits that could have been silver quarters or halves, hitting at 88 but mostly at 92. It's hard to pass those by. Soon my bag was bulging with bottle caps. I switched back to the "Hi-Pro" program and the mid-range began hitting on cents again. Only two clad dimes, no clad quarters for the whole evening, but SEVEN more wheats! Now I have 92 coins from that yard, including 13 wheat cents, but still no silver. The depth of the wheats found with the DD coil was not really any different than the depth of the wheats found with the 5.3. I'm not sure how I missed 7 wheats while I was digging the 63 coins, though. I guess it supports the idea that you can't get everything in one trip.

So, both coils did very respectably in this trashy yard. The 5.3 was able to discriminate the bottle caps much better than the DD, but the DD found more wheats, even on a second visit, than the 5.3 did the first time around. "Hi-Pro" gave me a better chance to find wheats than "Deep Silver" seemed to because a lot of them registered better on the mid-range. I have to believe that if there are 13 wheats, there's gotta be silver, but I have exhausted my limited strategic capabilities--in other words, I have no idea what to do next. I do intend to go back and give it at least one more try, but I'm not sure what I can do that will be any different than what I've already done.

The bottom line for me on the two coils in a trashy yard is that at least so far, both gave similar depth. The 5.3 discriminated bottle caps better. The DD covers more ground and picked out some mid-range coins that I missed with the 5.3. I think that if you are patient and willing to dig everything, you really can't miss either way, but you might end up with a bag full of bottle caps! I can't seem to get the bottle cap rejection to do very much....but that's another thread for another day.

OK, that said, does everyone agree that when you find 13 wheats out of 92 coins in a yard, there's got to be silver there? And if you do agree, what would you do next, considering the strategies I've already tried? If you don't think this applies to the thread, then please just send me a PM.

Thanks,

Mike
 
Great post Mike. It sure sounds like you have a chance at some silver and you might have to get rid of the trash to hear the silver. As a general rule, the DD coils can not reject the BC's as well as the Conical coils. The D2 coil is not always the best choice of coils for everyone, especially if you less mineralized ground. Keep with it Mike, sounds like that yard is not worked out yet.
 
Did you use " Active Analyze Screen" to see if you could tell they were Caps?
 
Larry (IL) said:
As a general rule, the DD coils can not reject the BC's as well as the Conical coils. The D2 coil is not always the best choice of coils for everyone, especially if you less mineralized ground.
Click to expand...
two questions:

1. How do you tell if your ground is mineralized?
2. What other "standard size" coil do you recommend?

Thanks
 
I don't have an answer for you using the V3 on #1 yet. Maybe someone else has a suggestion. On the XLT, DFX and MXT there is a feature called DC Phase and that # roughly tells you how ferrous your ground is.

#2 At last count, there were 21 coils available for the MXT, DFX, M6 and V3. The stock 9.5 inch coil for the other detectors is the 950, a conical.
 
Hi,

Regarding the "Analysis" screen, I find that it very rarely gives me useful information. Usually I get flat lines, even on coins. Coins that are tilted, for example, don't read well. However, from time to time, I do indeed get real wiggly lines that shouldn't be coins. One was a clad dime though, so I'm kind of leery of trusting that screen. I guess I have more to learn before it becomes a useful tool to me.

Mike
 
If you zoom your track live control, a screen comes up that shows the phase for each frequency. To use it, first menu/tab to the "zero" button. Lift the coil off the ground and press "enter" the zero button. The phases on the right will have random numbers at this point. Lower the coil to the ground and then you should see the phase of the ground for each of the 3 frequencies. The phases for each frequency reported are in degrees. If your ground was all ferrous, it should read around 178 degrees. Salt water will read about the 90 degree axis (I forget what exactly the numbers are, but not exactly 90, a couple are in the 80s and one is low 100's if I remember correctly). I think this correlates to the DFX's DC phase. The DFX has an air/ground balance which this one does not since the original goal was turn on and go, so that is what the zero button is allowing for in this window.
 
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