"Tuning"

[Wooden Nickel]

Comments please...... I am learning.

I have found that the word "tuning" is thrown around very loosely to refer to different things.

Most generally it seems that it refers to ground balancing.

However, I have seen it used in relation to how a coil matches the machine it is on.

Just what does "tuning" mean?

Am I correct in assuming that if I buy a new machine, PLUS an extra coil (say a smaller one) made by the same manufacturer for the same unit, that the extra coil will work at maximum designed efficiency if the unit is ground balanced correctly?

Your thoughts.

Mike.....:coastgaurd:

 

[scoper]

Hi Mike,i think that going back a few years, coil technology being less advanced, mean't that sometimes if you bought a second coil for your detector it was best to have it balanced to that particular detector to get the best performance from it.Today however technology is far more advanced and this is something that does not really cause any issues.If you buy a machine today any of the coils that are designed to be used with it will work without the need to get them tuned in to the machine.Even coils that are produced by a different company to that of the detector can be used with no problems as long as it is designed for that particular detector.Examples are Detech and coiltek who make coils for many different makes of machine.....you just buy the one to suit your particular detector,bolt it on and off you go.....no problem.Keep asking questions...there are many knowledgeable people on here who are always willing to help whatever questions you may have.
Regards,Neil.

 

[BarberBill]

An exception/addition to scopers explanation. Detectors that have a factory preset - not manual or auto ground balance - may not always give optimum performance unless re tuned by the factory. I have several different coils that I use on several preset ground balance detectors and haven't felt the need to do this, but if I were going to use a different coil than the stock a great percentage of the time, I might be inclined to send the combo in to be matched or if it didn't seem to work as it should. I'd certainly recommend trying the combination to determine whether it worked decently before I'd send it in. My two cents.
BB

 

[WV62]

I am new to the Tesoro line of detectors as well and I am glad to hear that I don't have to send the detector back to the factory when changing coils.

I did read something about the Tejon's have trouble running with another Tejon near by if the output frequency was matched and the 2 would interfere with each other. If this became a problem one of the detectors could be sent back and change the output frequency (17.2 to 17.6 kHz) enough to keep them from matching.

Ron in WV

 

[scoper]

Good point BB.....and very true.

 

[Wooden Nickel]

An exception/addition to scopers explanation. Detectors that have a factory preset - not manual or auto ground balance - may not always give optimum performance unless re tuned by the factory. I have several different coils that I use on several preset ground balance detectors and haven't felt the need to do this, but if I were going to use a different coil than the stock a great percentage of the time, I might be inclined to send the combo in to be matched or if it didn't seem to work as it should. I'd certainly recommend trying the combination to determine whether it worked decently before I'd send it in. My two cents.
BB

BarberBill - Thanks for your reply, and it reinforces my original question - what does "tuning" mean? What does it have to do with ground balancing? If I buy a machine with manual ground balancing and a stock coil, will things have to be "tuned," if I put on a smaller coil designed for the same machine? When we talk about "tuning" does it mean the coil is tuned to the machine, or is the machine "tuned" to the coil? If a coil and machine are tuned together, what happens when I put another coil on? Will it possibly be "out of tune?"

My situation - I am going to buy a new Tejon with the stock coil, and additionally, the 5.75" concentric coil. Will the 5.75" coil be "tuned" to the machine, whatever that means. I would assume, being designed for the Tejon, that the 5.75" coil would work pretty well, but there can be subtle differences in circuitry, construction,electronic component tolerances, etc., that might require "tuning."

Here again, I don't understand everything I read about "tuning" because I see the word used in so many contexts.

See what I mean? I'm not trying to be difficult. I just want to understand how these things work. I can get kind of anal about understanding how things work. so pardon me for my ignorance and dedication for trying to understand.

I appreciate the comments from everyone.

Mike.....:coastgaurd:

 

[WV62]

I am getting lost a little in this question, but you will not have any trouble with changing from one coil to the other if it is made to fit and work on your detector. As for me when changing coils in the middle of a hunt I always do a ground balance and then continue to hunt. I only have one stock coil for my Tejon, but several coils for the other machines I have, for the F75 I would GB after changing coils and the 1270 has auto ground tracking so for that one I just change and go.

If you haven't already ordered you may want to take a look at the Tesoro Lobo it has some kind of auto ground tracking which will take away the need to GB.

You may want to post in the Tesoro forum and one of the factory guys may pickup and answer your question more direct to your new Tesoro.

Ron in WV

 

[Wooden Nickel]

Hey Ron,

I'm just asking what "tuning" means.

I put in the Tejon reference for an example. I'll also be getting the small coil when I order mine.

I guess the fact that my original post has turned in several different directions reinforces my original statement that "tuning" is used in several ways.

Thanks for the post.

Mike.....:coastgaurd:

 

[dewcon4414]

Check out Ehow.com on how to TUNE a metal detector. Its all about getting it set up properly. That means knowing how your equipment works the area you are hunting and the adjustments or coil needed to get the best results.

Dew

 

[cadman_us]

Comments please...... I am learning.

I have found that the word "tuning" is thrown around very loosely to refer to different things.

Most generally it seems that it refers to ground balancing.

However, I have seen it used in relation to how a coil matches the machine it is on.

Just what does "tuning" mean?

Yes, it can be tuning the coil to the machine, it can also be tuning the machine to the conditions where you are hunting, such as adjusting the sensitivity for less falsing, setting discrimination against certain items (pulltabs) that are plentiful in the area you are hunting.

Am I correct in assuming that if I buy a new machine, PLUS an extra coil (say a smaller one) made by the same manufacturer for the same unit, that the extra coil will work at maximum designed efficiency if the unit is ground balanced correctly?

This is correct, if your machine has manual ground balancing. (if it has preset GB, you can also open the box and GB it by the pot inside or send it back to Tesoro and they will do it) when you change coils they need to be ground balanced to the machine.

Your thoughts.

Mike.....:coastgaurd:

 

[BarberBill]

A manual or true auto ground balance detector should not have any problems with different coils after being ground balanced at the location being searched. It's the preset machines that MAY benefit from being tuned TO THE COIL in use. Actually what is done is the internal GB pot is tweaked to match the particular coil to an average ground setting or to match the ground in the hunt location. As mentioned the other use of the word refers to other settings or adjustments to get the most out of the detector for the location. Hope this is helpful.
BB