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SWEEP SPEED ON X-TERRA 50

What is the best sweep speed, slow like the Explorer? Also will deep target give the loud tone or the deeper the quietier? Thanks Tom
 
The sweep speed of the X-TERRA is very forgiving. Due to the fast recovery speed, you can sweep it fairly quickly in wide open spaces. But when I get into a spot that has lots of adjacent targets, I slow down the sweep speed (similar to the Explorer) and cover the area from multiple directions. Keep in mind that, as a motion detector, you must keep the coil moving. Smaller coils separate better than larger coils. And in my opinion, the 6-inch DD has the best separation. As to audio response..... deeper targets will give a "more narrow" response than those closer to the surface. Some think of it as being a quieter signal. But as someone who listens for a change of pitch (from the Threshold), volume doesn't mean as much to me as that change of pitch. I have learned the sound of each target notch and let my ears "sort out" those that I want to dig. If the signal is consistent, I'll be pulling out the Lesche! HH Randy
 
Digger said:
The sweep speed of the X-TERRA is very forgiving. Due to the fast recovery speed, you can sweep it fairly quickly in wide open spaces. But when I get into a spot that has lots of adjacent targets, I slow down the sweep speed (similar to the Explorer) and cover the area from multiple directions. Keep in mind that, as a motion detector, you must keep the coil moving. Smaller coils separate better than larger coils. And in my opinion, the 6-inch DD has the best separation. As to audio response..... deeper targets will give a "more narrow" response than those closer to the surface. Some think of it as being a quieter signal. But as someone who listens for a change of pitch (from the Threshold), volume doesn't mean as much to me as that change of pitch. I have learned the sound of each target notch and let my ears "sort out" those that I want to dig. If the signal is consistent, I'll be pulling out the Lesche! HH Randy


Don't mean to change the subject but since you answered the post question i need your help Digger....
I have two questions if you have time...

1) In your experience what is the best frequency for a coil being used to find jewelry & coins in highly mineralized ground....

2) Does this sound right? Yesterday i was at the coast and on wet sand and my beach ground balance set it self to 0. did it a couple of more times and the highest i got was 5. After when i got home I tried to auto GB again and it stood at 5 in the air! I reset the unit and tried it again and it went to 27.. This is on a new 705 with a 7.5 DD 10.5 coil


Thank you in advance!
 
The best coil design to use in highly mineralized ground is a DD coil. Although any of the three frequencies will find gold, silver and copper, the best frequency for small gold jewelry is the 18.75 kHz. And it will do well on coins too.

By Beach Ground Balance I assume you meant you had it in Beach Tracking? If that is so, remember that Tracking or Beach Tracking is constantly updating itself, on the fly. You can check the "current" setting by pressing the GB pad. Just don't forget to press it again to go back to tracking mode. If you were simply using Auto Ground Balance, then switching to Beach Tracking, there is no reason to do so. Just put it into Beach Tracking to begin with and skip the Auto GB procedure. The reason being is because after you put it into a tracking mode and take a step or two, the ground phase is updated anyway.

The numbers you mention seem low for a DD coil. However, depending on what beach you were at, they are entirely possible. A smaller coil would probably ground balance with a higher number due to the amount of "mineralized sand" the detector has to neutralize at any one time.

It is difficult to get any consistency of GB readings in the air. Keep in mind that the coil is sending signals out, analyzing what comes back, and setting up what the software determines to be the optimum setting for that particular spot. That is how Auto GB works. If you do not have the coil above "the ground" when you hit Auto GB, it has nothing on which to base the signal reflection. As such, when ground balancing in the air, its any one's guess as to what type of reading you will get. And frankly, not accomplishing anything.

Next time you're at the beach, make sure you Noise Cancel first. Then turn down your Sensitivity to 15 or so, then put it in Beach Tracking. A lower Sensitivity might help in that highly mineralized sand. If you can operate without much chatter, boost the Sensitivity a couple clicks and see how it affects your ground phase reading. If you can still hunt without undue chatter, you can advance the Sensitivity a little at a time, until you obtain maximum performance. Let us know how it works out for you. HH Randy
 
Digger said:
The best coil design to use in highly mineralized ground is a DD coil. Although any of the three frequencies will find gold, silver and copper, the best frequency for small gold jewelry is the 18.75 kHz. And it will do well on coins too.

By Beach Ground Balance I assume you meant you had it in Beach Tracking? If that is so, remember that Tracking or Beach Tracking is constantly updating itself, on the fly. You can check the "current" setting by pressing the GB pad. Just don't forget to press it again to go back to tracking mode. If you were simply using Auto Ground Balance, then switching to Beach Tracking, there is no reason to do so. Just put it into Beach Tracking to begin with and skip the Auto GB procedure. The reason being is because after you put it into a tracking mode and take a step or two, the ground phase is updated anyway.

The numbers you mention seem low for a DD coil. However, depending on what beach you were at, they are entirely possible. A smaller coil would probably ground balance with a higher number due to the amount of "mineralized sand" the detector has to neutralize at any one time.

It is difficult to get any consistency of GB readings in the air. Keep in mind that the coil is sending signals out, analyzing what comes back, and setting up what the software determines to be the optimum setting for that particular spot. That is how Auto GB works. If you do not have the coil above "the ground" when you hit Auto GB, it has nothing on which to base the signal reflection. As such, when ground balancing in the air, its any one's guess as to what type of reading you will get. And frankly, not accomplishing anything.

Next time you're at the beach, make sure you Noise Cancel first. Then turn down your Sensitivity to 15 or so, then put it in Beach Tracking. A lower Sensitivity might help in that highly mineralized sand. If you can operate without much chatter, boost the Sensitivity a couple clicks and see how it affects your ground phase reading. If you can still hunt without undue chatter, you can advance the Sensitivity a little at a time, until you obtain maximum performance. Let us know how it works out for you. HH Randy


Thank you digger! I will follow this next time i am out. and yes i meant beach tracking but also that I set the GB once in beach tracking mode. Just as a side note I spoke to Kevin Hoagland before and after my purchase and was reporting some oddity's with pinpointing with the 10.5 dd 7.5 coil.

Sometimes when i am pinpointing and i use the pull back method where the target should be on tip of coil the machine will keep going past the tip for about another six inches! I made sure there was no other target close by so he thinks I may have what he called a "Hot Coil" So I am going to return the one i have and exchange it for the 18.75 version.

Thanks again for all your help.... :beers:

PS: where are you from?
 
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