SAT on MXT

[arizonaames]

The big difference between gold detectors and coin and relic machines is a variable SAT. The nice thing about the MXT is that the dual control is a discrimination control in Coin and Relic modes but in Prospecting mode it becomes a variable SAT. What this means is that when a signal is sent from your coil and hits the target, it then comes back to the coil and registers a target. The speed that this happens (Threshold speed) is controlled by the turn of the SAT (dual control in Prospecting mode). You can speed up the recovery to the point that you can turn it up (cw) to the Super SAT +1 though+3. The faster that you run the SAT speed, the less depth that you will get but you will be able to hunt in bad mineralized ground that other machines cannot do. Can one recover some of the loss of depth caused by turning up the SAT? Yes, to some extent. One can turn the gain up until the ground conditions can cause the loss of a good target (experiment with a test nugget) or one can turn down the SAT somewhat and swing the coil slower. I hope that this helps someone understand the SAT on a MXT better.....jim

 

[BarberBill]

Helps me.
BB

 

[B.T]

A slower sweep is always the go. Fast sweeping in a gold hunting environment with mineralisation will always lose you depth and target response. I generally hit the SAT before I lower the gain then go from one to the other. Sat first , gain next and so on till its right. Some people like a fast sweep speed and on beaches for freshly lost goodies its the go as generally they are not deep and depth loss from sweeping it like a brush cutter is not an issue.
For gold if you go too fast your done for. Example here in OZ if you go faster than from 6 to 8 seconds from one side to the other then you can kiss 80% of your gold goodbye. Depth will go to about 50% or less and ground noise will be overly generated. Regardless of SAT settings. Trouble is these days that every detector company puts out their instructional DVDs with the guys demo-ing the machine at light speed sweeps. Customers go out and follow the lead then come back complaining their machine is too noisy and has no depth. They are then taken out and shown the correct way to detect and problem solved. Trouble is all the wasted time re-educating them when it could have been done from the start. 90% of newcomers problems are caused by the "Faster than the speed of light" examples they are given in the DVDs. Seen the beach guy swinging his? Mate, how he doesn't break a shaft, or a tendon, every outing from the inertia created by his "don't blink or you'll miss it" sweep speed has me beat. How on this planet he recovers things with a PI machine is nothing short of amazing, he has to be running at a 50% depth reduction. Imagine what he leaves behind? Heaps.