Coil Question

[david1962hd]

I have the 10" stock coil that came with the V-3 is there any way I can test this coil an insure it is operating properly?
I purchased a Eclipse 4x6 Shooter coil yesterday afternoon, put it on the machine and went into back yard and found several coins that the 10" coil had missed. The approx depth of the coins that I found was with this new coil was approx. 2".
I was operating in the stock "coin" program.

 

[TheMarshall]

I have the 10" stock coil that came with the V-3 is there any way I can test this coil an insure it is operating properly?
I purchased a Eclipse 4x6 Shooter coil yesterday afternoon, put it on the machine and went into back yard and found several coins that the 10" coil had missed. The approx depth of the coins that I found was with this new coil was approx. 2".
I was operating in the stock "coin" program.

***********************************************

Hello David.

This is just my personal opinion:-

Using the method you've described, you can't realistically say what you've missed.
Returning at a later date, and scanning an area again is not an accurate procedure..

You can tell us what you've found, obviously,,,,,,,,,,,,,,,but not what you've missed.

If you seriously want to test two heads, then you must do it in one unified test session.

You must firstly locate several targets with one head (the larger one), mark them, and take notes of VDIs and indicated depth.

When you find a target, remember to scan it from all four points of the compass (so to speak).
Also note any peculiarities that may occur, for a target.

Then re-test immediately after that procedure, using the other head, and the taking of notes of the second run.



Now do your analysis of the results.

That is the best practical way.

I can't imagine the smaller head failing to register the presence of all targets, unless they're deeper than 6 inches.


I have previously posted a comment on my enthusiasm for using smaller heads.
In particular, the 3 x 6 inch Shooter. I honestly think that you can find average sized coins as deep as 6 or 7 inches with this one. More importantly

 

[Rob (IL)]

I think you just wanted to know if you had a good coil.

"In the air (NOT on the ground) if you crank your gain to 15, and turn TX Boost on, does your machine overload? If you get the overload groan, then your coil is bad. If there isn't any overload, you have good coils and not to worry. The recommended gain was calculated for an arbitrary percentage of used signal (10%). Could have been higher (and probably should have been). The recommended RX gain level is not a coil "test".This based on a post by Anne. Rob

White's will consider any loop that has a recommended gain of 8 or more in air to be a good loop. Carl

 

[SandPhantom]

I also programmed in jacks prfile and tweaked it a little after my V was updated by whites and it made a HUGE diffrence. Plus reading and actually using it more is helping my confidence.

 

[Larry (IL)]

Seldom is the coil at fault for missing coins, especially at 2 inches deep, they are easy to walk over and everyone does it.

 

[Downdeep]

That and it seems like possibly the smaller coil was doing what it is supposed to do if it weeded the coins out of trash where the bigger coil wasn't picking them up. Thats kinda the point of a smaller coil. I'm waiting on my 4x6, been two weeks now since I sent for it, expecting it soon.

 

[david1962hd]

Thanks Rob that is the answer to the question I had. I tried it and it seems that the problem is not in the coil but with the operator.
Larry you are correct as well, I guess I just walked right over them.
Thanks to all for your help and advise.