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4 inch coil

I can get about 4 to 5 inches some people have had it hit deeper but I have yet to get that deep, but I think my machine is out of wack so I sent it back in and should have it back in the next couple of weeks. so we will see then.
 
Dis you get the machine back ? How did or does the detector perfoem now since it was tuned up ?
 
With my Landstar I air tested the 4" coil in disc mode and got 6" on an nickle, 5 1/2 on an dime, and 7" on a quarter. I haven't done a all metal mode test but will do that and log the results. Compared to the 8"coil It was about a 2" difference. The real benefit come with target selectivity in trashy areas. The 4" coil is worth it in my opinion. :thumbup:
 
Yea I got it back, it works out really nice. I do think that I am going to sell it though. I have several unit's and mom said I had to get rid of a couple. So like I said I think I will put the 505 up for sale, with all three coils. Mind you it was new when I got it 4 month's ago, but when I got it back they replaced the button membrane (new Buttons) , replaced the 8" coil with a new one, and tuned it up. So it's a mean unit for sure. I think that I will see if I can get 275 or 250 out of it for everything. It is like a brand new unit but without the transfer of the warranty. To bad they don't let you transfer the warranty, then that would be one heck of a company.
 
Digging,

Please overlook the fact that I have to ask, but what exactly is involved with a " TUNE-UP" for a 505?

Thanks
 
Just going through the unit to make sure that it is in tune with the coil, making sure that the unit is ground balanced properly, making sure that the over all performance is up to par. They replaced the 8" coil because there was something wrong with it, so a tune up is sort of like doing a tune up on your car. They replaced the buttons on the unit because I don't know they looked find to me, but they must have thought that something was out of wack with them so I don't know about that. I hope this helped out a little.
 
I have a cheap little Tracker version and it's the cat's meow for me. I replaced the 7" coil that came with the Walmart version and soldered the 4" in and got better signal qualities, target shaping features, and target separation.
 
I bought a 4" coil for my Tracker IV to nugget shoot in NM. I never did go with it but when I recently upgraded to the BH Pioneer 505 (which the coil fits as well) I tested it at home. I get better than 1/2 to 2/3 the depth of the 8" standard coil using books over the targets to simulate burial. Since I am regularly pulling coins out to 10" that makes it about 6" to 8" "In Theory" on my 505, but have not yet actually used it for coin shooting. I may try it this weekend ***
I find my 505 does a terrific job w/ the 8" in 'Auto Notch' even in the trashiest area, ignoring most pull tabs & ID'ing the rest. I leave the 'Notch' setting at "0". Screw top beer caps give me some grief reading as coins, though I am getting better at recognizing the subtle tone variations. I get a bit better depth in 'DISC' with knob way low, No iron problem but get more trash signals so I switch back & forth sometimes to clarify. I always have sensitivity as high as it will go & ALWAYS use volume adjustable Muff Type HeadPhones (enclose your ear)
The 505 is SO much more machine than the T-IV !! While the display is very accurate most of the time (although coins will read deeper than actual) The trick was to get used to the TONES.. Within 5-7 days of use I was pulling over 85% coins to trash using my ear (in a trashy park). I just check the display to get an idea of depth & size. I do get fewer nickels & skip most zinc pennies, but I am looking for Wheaties & Silver primarily anyway. The clad is just battery & gas money.
I usually use 'Auto Notch' to pull clads & some of the junk while looking for the more productive 'HotSpots', Then I sweep in 'DISC' w/ knob set almost zero & check with 'Notch' w/ ( disc set about 9 or 10 O'Clock) to clarify some targets. The 505 lacks "PinPoint" setting which I wish it had. I do use 'All-Metal No Motion' sometimes to get size/shape or to find center, but the balance setting is a pain when just coin shooting. In under 2 weeks of part time I found $35 in clad, over 200 copper pennies, 3 silver rings, plus the usual oddities. Quite a few coins where I had already used my T-IV

This is more than just about the 4" coil but I believe The 505 is the best machine I have seen under $350, & I compared quite a few brands.

FYI Kellyco has brand new (barely) "damaged box" Pioneer 505's for just $199 !!. Mine arrived in 4 days, It had a 5" long 'wrinkle' on the top edge that I would not have noticed if I wasn't looking for it and would have accepted as new condition !
 
If BH is getting rid of their lineup, NOW is the time to send your units in for repair and retuning, as they will no doubt want to get rid of stock, and may practically give away items like they did above (like replacing parts on your machine)...

HH,
 
The 505 does lack a pin point mode, you just have to know how to use it. My 505 pinpoints VERY well. After you locate a target and discern that it is good, switch back to all metal mode and do NOT ground trac, center on the target as good as you can and hit all metal again, this produces a smaller window, pressing a third time narrows even further. It usually takes only 2 times to pinpoint precisely but for targets with a big halo, it make take 1 or 2 more. A word of caution, it is possible to completely blank out the target if you press it one time to many and then you will have to start over. Try it out, it works for me and you can locate the target exactly. Hope it works for you.

capt.
 
I use the All Metal mode as a Pin Point. Works as well for me as does the actual pin point feature on one of my Garretts. My Groundhog Garrett would be more like the 505 method of pin pointing but the 505 will pin point.

I've only had it blank out the item when having gotten dead zero on it while re-setting the All Metal to see if I could pin point much more exact. Move the coil just a small amount away from where you lost the sound and reset All Metal again and you will pick up the pin point sound so to try again.

Under the heading of "Summary of operating Modes" in the 505 instruction manual, one of the applications listed for the no motion-all metal mode is pin pointing objects located while in the motion modes. :detecting:
 
I have a question as well about the 4" coil. Has anyone used it for gold prospecting? If so, what were your experiences?
Do you know what detection frequency is?
Thanks
jeff
 
:usmc: The area I live in is very rough, mineralized, and rocky. The Salmon River is known for Gold and I have even panned and sluiced for it. The problem is, it is very fine flour Gold and you will work hard for so little of it.

Though I have heard stories of a couple guys here who have found small Pickers and another who claims an 8 Oz Nugget, I would at best believe the small Picker stories down on or just along the river. One fellow I know found a small Picker but only after his Gold Bug missed it and he used a home made vacume Back pack that sucked it up while not knowing it till he got home to pan out the dirt.

Though I have used my Garrett to locate Black Sand pockets or concentrations, I have found no Pickers or Nuggets. I have also tried my Pioneer 505 in the same locations for Gold only to have the same results. It would take a very good concentration of Fine Gold to make my Garrett noticably respond so I suspect the same for the 505. Of the very small amount I have and each in their own vial, when all held together in air and in just the right position, both detectors at contact will just barely sound on them. If I were in the field, I have no doubt this small amount would easily be missed by my machines.

I have read though that a .22 lead bullet makes for a good practice piece as gold about the same size would give close to the same responce. One way to show yourself how difficult it is to detect fine gold is to take a penny and a dime and file both down into fines (the penny amount equaling the whole dime amount as I recall, which particles are still larger than Flour Gold) and then try to detect them. You will be amazed at what you learn and it will put things in perspective. If you don't have a sample of Black Sand to also play with, do up the same amount of fines with a nail. To try and replicate detecting Black Sand pockets, in an old Garrett Book, Charles recommend a gallon of Black Sand to play with but I have made my Garrett work with much less but have not tried the 505 yet to see if it will correctly detect it. Just playing around with lead, I have detected with both machines a piece as small as a grain of rice in air and buried in my not very precise test plot. Do I think I could find Gold the size of a grain of rice outside of my test plot? In my area, I think it would be extremely difficult but not impossible. There are guys here with Mine Labs, Gold Bugs, and White's and no one is making a killing. Our flour Gold here is very yellow and pure so I suspect that adds to the difficulty in detecting any in concentration or if should it be a Picker or smaller. With both detectors, I used my small and standard coils. As for the frequency of the BH 4" coil, as best I have come up with is 6.8 kHz but if anyone knows for sure, I would appreciate knowing as well. :happy:
 
Thanks for the info regarding the 4" BH coil. Thru my reasearch yesterday I found that the BH Pioneer 202 just doesn't have the frequency range
for accurate nugget shooting. The Pioneer 202 has a frequency of 6.7kHZ and I would assume that would be the same for the Pioneer 505. I then
inquired about the frequency of the Garrett gold detector and it is 15kHZ. I then checked the Fisher gold bug II and it is at 71kHZ. It seems one would
need the higher frequency for better detection of gold nuggets. I have some placer gold with pickers some weighing several grams. I placed them on the
ground and tried to detect with the Pioneer 202 and 8" coil....the machine would not produce a signal. I don't have a Fisher to test with. Would a BH 4"
gold coil work better? Don't know. I'm not sure the cost of the coil is worth it. Now, I'm thinking to keep the Pioneer for coins, which works very well and
purchase the Fisher Gold Bug II for nugget hunting here in Nevada. If someone knows more about frequency and would like to chime in here, I'm sure
others would appreciate it as well as myself. Thanks. Jeff
 
Here's some info about frequency; Frequencies in a metal detector are referred to in kHz (kilo hertz) which is the number of times a signal is transmitted into the ground as received back per second. The lower the detector's frequency, the deeper it will penetrate. However, its sensitivity to smaller targets may be reduced. On the other hand, the higher the detector's frequency, the higher its sensitivity to even the smallest targets, but it may not penetrate as deeply.

Generally, gold detectors operate at a higher frequency for locating small gold nuggets. Coin, relic and treasure hunting detectors operate at lower frequencies for greater depth penetration.

I think enough is said about the Pioneer 202......I'm going to purchase the Fisher Gold Bug for nugget shooting.

Jeff
 
I've had my land ranger for about 5 or 6 years now and I'm still trying to figure out this machine. I've spent hundred of hours learning everything I can about this hobby from different sites forums,YouTube videos etc. I perfer the 4" coil easier to pin point requiring only a 3" hole never bigger than 5" on deep targets. I found a 1964 Kennedy half at 14" most targets in this area are at about 6 to 8 inches. Your hunt site should be older than 1962 if you want silver especially schools. I am now a E-Trac wanna B. Factories need to spend more on free training of their products and warrenty service if they want to keep their customers. Never used my warrenty,forgot what year I purchased it and the dealer name in Florida where I purchased it and when I e mailed Bounty Hunter they said I had to show proof of purchase. Guess I'm out of luck,I thought I did that on the computer when I first registered it. A good tune up is all that it needs Target ID numbers are worthless, Ground Balance won't go back to default setting etc. I Won't spend my money twice at First Texas
f
 
Only place I know in PC is Le Chalet Detector Sales that's not a RS or Wally World. 5 years ago it was $ 35 for a tune up at First Texas. Great customer service.
Hope that helps Jeff...
 
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