D&P-OR said:
Let us know how that b.c. cap check works out.---I for one would be very interested in hearing about it.---------Del
Cutaplug said:
The problem with bottle caps is mostly with salty wet sand on the beach. Park modes you can just switch from multi frequency to 40k and it will tell you if it's a bottle cap or not. Problem with salt water and wet sand is that you need to run beach mode to get stability but you can't switch from multi to single in beach mode. Went out last night and think I figured out a way to distinguish bottle caps nearly 100% of the time. Going to investigate that more today and will post here if it is reliable.
Have been able to go out 3 hunts since this original post and have done some testing. The beach I was previously going to and spent a solid 2 weeks at had a very high concentration of bottle caps. I have visited 3 beaches since then and there are far fewer bottle caps on average. I have learned how to distinguish bottle caps nearly all the time using the following methods:
Dry Sand or Land:
1. Run Park 2 and multi frequency for best gold capabilities.
2. Set discrimination on whatever you want. Bottle caps can read from 4-18 so it doesn't matter what your descrim is.
3. Once you get park 2 set up how you want it set the custom user setting (button on right side of machine) to the exact same thing except set the frequency to 40k. This way you can switch from multi freq to 40k quickly.
Great observations Cutaplug, I don't hunt salt so I am not much help. A little time in on the machine has paid of well!!
HH Jeff
4. When you get a good signal that may be a bottle cap switch it over to custom user (which is essentially just bumping it to 40k frequency) and see if the number jumps around. The number won't jump on multi but will increase in 40k if it's a bottle cap. If it isn't a bottle cap (non ferrous) then it will stay the same number when you switch to 40k.
Wet Sand:
1. Run Beach 1 all metal mode. You can't switch frequency in beach modes so you're stuck in multi.
2. When you get a signal back the coil toward you until you start to lose the signal.
3. Once the coil starts to exit the signal you will keep swinging left and right as you back away. The signal will turn into either a iron signal like -5 or completely disappear. Here is what the numbers and tones mean:
Signal completely disappears = Non Ferrous good target
Signal repeats in the negative tone range and is a short precise signal = Ferrous bottle cap
Signal repeats in the negative tone range but is a longer smoother signal as if it is a big target = Non Ferrous Good target
Still need to investigate this more but those are my initial observations. Was able to get 3 golds in the last 3 hunts at a beach that I was told was not very good. I guess it's all in the machine =)