Knowing when Threshold has "re-tuned" :shrug:

[ToddB64]

Dear friends,

I will soon be receiving a Tesoro Bandido ll uMax, so have been doing some preliminary study on how to set it up.

When ground balancing, with the machine in ALL METAL mode, I have read instructions that say to set the Threshold hum low and steady, lift the coil straight up off the ground and allow the Threshold to re-tune. Once the Threshold has re-tuned, push the coil down to about one inch above the ground. The instructions continue, but I'll stop at this point and ask a question, i.e. "What signifies that the Threshold has "re-tuned ?" Is it just a 2-3 second waiting period with no sound at all, or is there a change in the Threshold hum, a bleep, click or other sound variation to confirm that the machine has re-tuned itself ?

Thanks,

Todd

 

[tabdog]

Hay Todd,

When you set the threshold to a low hum,

That is your reference point.

When you lift the coil straight up off the ground

and allow the Threshold to re-tune,

it will return to the reference point. That's how

you know it has retuned.

When it goes back to where you set it, it has

retuned.

Hope that helps,

Tabdog

 

[Scully]

When you lower the coil to the ground the threshold will do one of three things: go quiet, stay the same, or get louder. These conditions will occur only for a second or two, because once the coil stops moving the machine will "retune" itselft to the audio you heard when you started the GB process. What you are doing is allowing the machine to sense, and respond to, the mineralization it is seeing in the ground. If it senses a positive amount of mineraliztion in the ground, the audio will increase as you lower the coil to the ground and this is what you are trying to "tune out". If the GB setting is too high the machine will go negative, or quiet as you lower the coil to the ground. The ideal setting is to balance it slightly positive, so you hear an ever so faint increase in the auidio as you lower the coil to the ground. Ground Balancing seems to be the most difficult thing for people to learn, but mainly because its hard to explain it easily with words. That actual action only takes seconds once you get used to it but it still intimidates a lot of people. It is a vital step in setting your machine up to handle the ground conditions and if done incorrectly you could lose a lot of depth.

 

[Monte]

I will soon be receiving a Tesoro Bandido ll uMax, so have been doing some preliminary study on how to set it up.

[size=large]The Bandido II

 

[ToddB64]

Thanks David, Gene and Monte ! All excellent replies

Todd