Sand Shark Threshold?

[Bromly]

Hi Guys

I've been using my new SS for about 3 weeks now.I was wondering is it possible to have my threshold to high, and not be able to detect small gold items?
I have picked up some silver in the surf and one gold bracelet.Also lots of trash.I don't mind digging everything, but wonder if I'm hurting my chances with gold by setting my threshold to high.

Thank you .

 

[tvr]

Bromly,
Directly from the Sand Shark manual:
"Some targets may be small enough or deep enough that they will not be able to generate an audio tone by themselves. By monitoring a threshold, you already have a signal so changes in that signal are easier to hear. However if the threshold is set too loud, the small changes will not be noticed. Therefore, a low steady threshold setting is ideal."

Couple of things come into play with running it too high. The threshold is not absolutely steady so as you listen for repeatable changes in the threshold as it passes over a target; with it set high, it is harder to separate the normal unsteadiness of the threshold from a repeatable small change due to the target. Another issue with a higher threshold is ear fatigue. You get used to the volume and do not pick out subtleties.

If the wave noise is higher, you want to take the threshold up some to overcome the outside noise, but keeping it low, almost in the background helps you detect the smallest, deepest targets.

Congrats on quickly turning up gold and silver!
Cheers,
tvr

 

[Bromly]

Thank you for your input.I think I've been running it to high lately, around the 2 to 3 o'clock position.
This week I'll try running it from 11 to 1 o'clock position.Maybe go up on the volume a bit if the wave noise gets to high.




Thanks again!

 

[tvr]

I've been hunting the Sand Shark with the volume at max and the threshold about 10 o'clock or slightly above 10 towards 11 o'clock. For me it is easy to raise the coil for a shallow or big target to cut down loud signals and lower it again to listen for a slight change at max volume on a small and or deep target. At least that is my thinking.

I just need to be careful about scoop handling; place foot next to coil, move coil, then place scoop. I can't get coil too close to the scoop or it takes a few minutes for the ears to readjust to a low threshold.

The settings and comfort levels are all trade-offs so try a range of settings and see what works best for you and your beach conditions. Sounds like you are well on your way to getting comfortable with the Sand Shark.
Cheers,
tvr

 

[targets]

why no spider coil on the SS >>?

 

[tvr]

Sand Shark coils are printed spirals, meaning it is not a wire winding, it is printed like a printed circuit card. The flat thin Sand Shark coils are low drag and easy to sweep in the water as long as you keep them flat and cutting through the water and the water movement.

Spider coils create more drag in the water, the thicker they are the worse the drag gets with all the water going over outer loop funneled by the radial spokes and then over the inner loop and on the path out and over the other side.
Cheers,
tvr

 

[magglobe]

will it be as deep as a mono coil on the sand shark?

 

[tvr]

magglobe,
The coils that are made for the Sand Shark are:
3x18" Pulse (COIL-3x18P-LW-2)
7" Round Printed Spiral (COIL-7RP-LW-2)
8" Round Printed Spiral (COIL-8RP-LW-2)
10" Elliptical Printed Spiral (COIL-10EP-LW-2)
10