Cortes question: When I use the ALL METAL mode

[jabbo]

what is the circuit actually doing as I swing the coil. I swing pretty fast and can hear the threshold rise and fall with most swings, maybe due to ground minerals. Is the circuit retuning to the changing ground minerals. The soil is moderate, soft, and moist. I ground balance. Thanks in advance.

 

[kdc]

the Cortes is a manually ground balanced detector in the all metal mode, in the the disc mode it is a preset. the changes in the threshold sound can be from lifting the coil up at the end of each swing, changes in mineralization, or the detector encountering metal in the ground. this is all assuming that you have it properly balanced to begin with. hope this helps.

 

[jabbo]

The All Metal mode requires some coil movement or it nulls out over the target. That seems to tell me it is adjusts itself to changing ground minerals. Is there a name for this type of self adjusting system.

 

[tabdog]

re-tune speed. Some have manual re-tune where you flip a spring loaded toggle switch to re-tune and release it. Some have manual and automatic retinue options on a toggle switch. Some applications work better with slower re-tune and other applications work better with a faster speed. It's also a question of personal preference.

Don't get me going too far on this or I'll be in over my head,

 

[jabbo]

Tabdog, then it seems to me the Cortes has automatic retune in All Metal. Correct?

 

[tabdog]

I personally have never used a Cortes.

To get an explanation of how the different types of all metal modes work you will need some one with more knowledge than myself.

 

[Scully]

or the retune them selves. As long as you are moving the coil, even e little bit, the machine should not be returning.

 

[kdc]

the retuning your talking about is the threshold recovery speed. the time its takes to change then change back to a normal threshold sound. the all metal mode that requires motion, is based off the theory of inductance. exposing a conducting material to a magnetic field. then the field is transferred to the conducting material and received back by the coil for the detector to read. the Cortes is a manually adjusted detector, the ground balance does not change unless you change it. i have one and use it allot, along with LST,and a tejon, on the tejon it has a slow and a fast threshold recovery depends on which way you flip the toggle switch. the tejon is also a manually adjusted detector, the only difference is that the MGB affects both modes on the tejon. now my LST has an automatic ground balance feature in the all metal mode and a preset in the disc. mode. to my knowledge tesoro only makes one truly automatic ground balance detector and that is the LST. the LST is the only one capable of automatically retuning itself as far as ground balance is concerned. and as i stated above. hope this helps to clear it up a little.