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Opinions Wanted On 3kh coil X-Terra 705
- Thread starter Bell-Two
- Start date
Thisoldgoldchaser
New member
The coil you have on it now is the better for all around coin shooting. The low freq coil is good in low mineralized ground but loses in the higher. For coin shooting stick with the one you have. You arent gaining anything by going to the 3kh one except spending the money. Take it from one who has spent too much money on coils for his 705. <laugh>
I personally think that the 3kHz coil is the best coil for coin shooting. I have had quite a bit of lucking finding deep buried silver and copper with this coil. I also swing the 7.5kHz stock coil, and have found quite a few coins but the deeper coins were found with the 3 kHz coil. I use both the 70 and 705 in moderate to heavy mineralised soil. HH TomB
Rather than buy your wife another concentric coil of the same size and maybe not really gain much at all, why not get her one of the 6" coils for use in the areas with high amts. of trash.. The 6" DD HF coil is really terrific in high trash areas, while others say their 6" MF concentric coil also does a fine job in areas with lots of trash and either coil will make her XT-705 light as a feather. I've always preferred the DD HF coils for use in my ground, but everyone's ground is different and what coil works well in one place, might not work quite so good somewhere else. Good luck with your choice...
I just received my 9" 3kHz coil today.
Air tested it in the house and it seems to get about 1 to 2 inches better depth than the stock coil on clad and silver coins.
It doesn't seem to care for nickels and gold much though.
I took it outside laid down a nickel and a gold ring on the ground to see what would happen.
Ground balanced at 40.
The nickel target ID #'s bounced around between 8 and 14 with an occasional 4 to 20 mixed in.
I would have not dug that target with my MF stock coil which would lock in at a solid 12.
Next the 14k wedding ring.
Very disheartening.
TID bounced between 4 and 12 with an occasional -2 to 30 especially if ring was put on it's side at all.
Again the MF stock coil locks in at a solid 10 to 12.
I am lucky to have both a XT-70 and a 705 so I can have the LF on one and the MF on the other with the 6" HF close at hand.
Also lucky that I have my wife with me most of the time to swing one or the other.
I have not been out in the field with the LF yet so I must reserve judgement.
But as of today I'm much happier with the purchase of the HF 6" coil than the LF 9"
And I do still love the stock coil best of all!
Good Hunting
Denny
Air tested it in the house and it seems to get about 1 to 2 inches better depth than the stock coil on clad and silver coins.
It doesn't seem to care for nickels and gold much though.
I took it outside laid down a nickel and a gold ring on the ground to see what would happen.
Ground balanced at 40.
The nickel target ID #'s bounced around between 8 and 14 with an occasional 4 to 20 mixed in.
I would have not dug that target with my MF stock coil which would lock in at a solid 12.
Next the 14k wedding ring.
Very disheartening.
TID bounced between 4 and 12 with an occasional -2 to 30 especially if ring was put on it's side at all.
Again the MF stock coil locks in at a solid 10 to 12.
I am lucky to have both a XT-70 and a 705 so I can have the LF on one and the MF on the other with the 6" HF close at hand.
Also lucky that I have my wife with me most of the time to swing one or the other.
I have not been out in the field with the LF yet so I must reserve judgement.
But as of today I'm much happier with the purchase of the HF 6" coil than the LF 9"
And I do still love the stock coil best of all!
Good Hunting
Denny
goldseeker4000
New member
If you want to double check an area for gold rings or if you are working any area that you know that there is a very high probability of gold jewlery being, then just switch to prospecting mode and the 705 becomes even more sinsetive to gold targets and small items. Just because you may not live in an area that you can use the prospecting mode to hunt for gold doesn't mean that program won't be advantageous from time to time. If I have any doubts about a target I will often check it in prospecting mode. As for the LF 9" concentric coil, keep it, don't get rid of it. Use it often and you will see it will be better to hunt coins with. Use the coil for the type of hunting you are doing.. Question: Would you or your wife rather find more clad (modern / MF coil) coins or would you rather find more silver coins( old / LF coil )? Get creative with your detector try every thing out and see how it responds to different metals and different hunting aplications. Get to know how to use it to its absolute fullest potential. I have only found one silver with the MF 9" coil in a year. You do the math.
goldseeker,
Thanks for the tip regarding using the prospecting mode more.
I do not use it enough. Although it did help me locate a baby gold ring in the sand at 81/2" deep once.
We have been very lucky this year finding a honey pot area at a fresh water nearby.
So far this year we have found 11 silver dimes (8 Merc.'s) 2 silver Qtr.'s 1 ben Franklin and 2 gold rings.
This was all with the MF stock coil. Depth up to 9" plus.
This area has not given up much more over the last two outings (1 silver dime).
So the plan is to go back with the 3kHz coil and see what it can find
I will report back on how it goes.
Good Hunting
Denny
Thanks for the tip regarding using the prospecting mode more.
I do not use it enough. Although it did help me locate a baby gold ring in the sand at 81/2" deep once.
We have been very lucky this year finding a honey pot area at a fresh water nearby.
So far this year we have found 11 silver dimes (8 Merc.'s) 2 silver Qtr.'s 1 ben Franklin and 2 gold rings.
This was all with the MF stock coil. Depth up to 9" plus.
This area has not given up much more over the last two outings (1 silver dime).
So the plan is to go back with the 3kHz coil and see what it can find
I will report back on how it goes.
Good Hunting
Denny
Thank you for that test Denny. The LF CC seems to have about the same trouble as the E-Trac on very small gold. So in conclusion the LF CC is better on high conductor old silver-copper-clad coin hunting than the MF CC, but not near as good on low conductive small gold and nickles.
Then the LF CC is the silver king. In C&T Mode it would be very good to use in trashy areas where you notch-out all numbers below about 30 in a custom pattern to search for high conductors only.
Yes with your MF or LF CC especially at the beach, experiment with the Prospecting Mode(P Mode), with the Iron Mask(IM) from #1 all the way up to maximum #20 to see what small size gold(and nickles) it will blank-on and also signal-on to find the best IM #number to work with. The P Mode is much deeper and also more sensitive to very small gold than C&T Mode.
Another technique to use in low trash areas is hunt in P Mode and then when you get a signal re-check it in C&T Mode set in All Metal(AM)-multiple tones to ID the target to see if you want to dig it or not. If there is no signal at all(because the target is too deep) in C&T Mode then dig it up for sure.
Forget using the P Mode in high trash areas.
Then the LF CC is the silver king. In C&T Mode it would be very good to use in trashy areas where you notch-out all numbers below about 30 in a custom pattern to search for high conductors only.
Yes with your MF or LF CC especially at the beach, experiment with the Prospecting Mode(P Mode), with the Iron Mask(IM) from #1 all the way up to maximum #20 to see what small size gold(and nickles) it will blank-on and also signal-on to find the best IM #number to work with. The P Mode is much deeper and also more sensitive to very small gold than C&T Mode.
Another technique to use in low trash areas is hunt in P Mode and then when you get a signal re-check it in C&T Mode set in All Metal(AM)-multiple tones to ID the target to see if you want to dig it or not. If there is no signal at all(because the target is too deep) in C&T Mode then dig it up for sure.
Forget using the P Mode in high trash areas.
Denny, I forgot to tell you to try experiment with the +Target ID Stability to see if it will stop those good numbers(like on your 14k gold ring and nickle) with your LF CC from jumping around so much and lock on better. The only disadvantage of this is it will also stabilise trash-junk targets from jumping around making them harder to ID out, but that might be a good trade off.
Wish mine labe made a x-708that gave you a pick of 1 - 2 - 3 frequencys to hunt from 1.5khz up to 12khz so i could pick the frequencys i wanted to hunt for example i may want to hunt in 3khz--and 7.5khz or if i wanted i could hunt in just one 10khz you would have three knobs that adjust fequency or i could hunt in 1.5 khz 3khz and 4.5khz or 3khz 7.5 khz and 12khz would that not be cool
Bavaria Mike
New member
That 3KHz coil is a heavy coil, might as well get a 10.5" DD coil. I have one and see no difference compared to the stock coil other than it is heavier. I would gladly trade my 3 KHz 9" coil for a smaller 6" DD coil. HH, Mike
your comment about the weight of the 3 kHz coil got me wondering....... so I took my 9-inch concentric at 3 kHz and my 9-inch concentric at 7.5 kHz, removed them from the lower rods, removed the coil covers and cleaned them both off, put the coil covers back on and weighed them on a postal scale. The 3 kHz with it's coil cover weighs 1 lb and 1.8 oz. The 7.5 kHz coil with it's coil cover is actually heavier, weighing 1 lb and 2.6 oz.
I've used every coil available for my X-TERRAs. And there is no doubt in my mind that the 9-inch concentric at 3 kHz has been the "best" for finding old silver coins in my moderately mineralized soil. The audio response on deeply buried iron (which sometimes produces a wrap around high tone) provides a very distinct harmonic sound, allowing me to "pass it up" and move on. The MF and HF do not provide the same range of audio harmonics on deeply buried iron. However, I also think that the 6-inch DD is the best for target separation. Different tools for different jobs! JMHO HH Randy
I've used every coil available for my X-TERRAs. And there is no doubt in my mind that the 9-inch concentric at 3 kHz has been the "best" for finding old silver coins in my moderately mineralized soil. The audio response on deeply buried iron (which sometimes produces a wrap around high tone) provides a very distinct harmonic sound, allowing me to "pass it up" and move on. The MF and HF do not provide the same range of audio harmonics on deeply buried iron. However, I also think that the 6-inch DD is the best for target separation. Different tools for different jobs! JMHO HH Randy
goldseeker4000
New member
I got a 6" DD HF coil but don't have a 3 KHZ. Are you interested in trading coils. No sense in having two coils for gold nuggets that will do the same thing. Think about it.