This is the auto tune speed. The speed that the circuit re-sets it's self to maintain settings, mainly the S.A.T. Your Threshold tone.
The default is Fast mode, and it would better for you to sweep somewhat briskly. This gives you a fast sweep unit to hunt trashy areas.
In the Slow mode the circuit takes longer to reset it's self. This mode gives the detector a bit more time to analyze the target area before reseting. It tends to be the deeper mode. A slower sweep may be required using this mode.
In testing the F70, I discriminated out the complete range to #65. Going over to Slow reset speed, help me recover some of the depth I loss going to full discrimination. It made a noticeable difference.
The default is Fast mode, and it would better for you to sweep somewhat briskly. This gives you a fast sweep unit to hunt trashy areas.
In the Slow mode the circuit takes longer to reset it's self. This mode gives the detector a bit more time to analyze the target area before reseting. It tends to be the deeper mode. A slower sweep may be required using this mode.
In testing the F70, I discriminated out the complete range to #65. Going over to Slow reset speed, help me recover some of the depth I loss going to full discrimination. It made a noticeable difference.