Eric or anyboby with Pi knowledge! A question about Pi'S!

[Joe Kononchik]

I have a Garrett Infinium and know it is a deep machine. The biggest problem I have is it reads salt and /or waves as it passes over the coil. So I have a few question on some possibility for fixes.

1: Would a change in S.A.T. and Sample delay help?
2; Would changing or taking out the tone id help in telling the difference in false signal?
3: Would take out tone id do to less filter or signal travel? I which I would have a deeper pi without tone id like a White's.

I thought of getting rid of it but it is deep in wet sand. In the water I have to up the so called Disc. up to 3 to 4.5 to handle shallow water hunting. In return I start to loose small white gold and depth on small yellow gold. I wish I could afford a Auqasearch or Goldscan but they are a little out of my range.If I could get the Infinium to run more smooth and not loose the small stuff that would be great. Remember I loose the small stuff with higher disc. which I believe to be a delay.Them dam waves read like a gold a hig/low tone. Thank you for any input to understand these PI's.Thank for any input and good hunting Joe

 

[Tony]

Joe,

You have answered your question in point 1 !

Now, I know nothing about the Infinium but I use Eric's Goldquest SS that is waterproofed. By increasing the SAT to a faster speed, this will usually smooth out the threshold variances caused by those annoying slow moving swells and waves, that to the detector are seen as a nice "passing" target.
Now on the Goldquest/Aquasearch, if you are running at too fast a pulse delay then no amount of SAT increase will quieten down the moving salt water. For me, in water of waist deep, I will need to run at no less than 15uS and with the SAT at fast. I always reach for the SAT control before going for any pulse delay decrease (assuming I have the right delay setting to start with for a certain volume/depth of salt water).
I call the two controls (SAT and DELAY/REJECT) my salt and pepper settings, you need the right amount of both for a particular dish (salt water affected area).

Hope this makes some sense,
Regards,
Tony.

PS My SAT control does not decrease the detector's sensitivity to gold targets, however, the REJECT or pulse delay will do just that, but usually on the finer gold rings. I will not miss any gold rings up to about 15uS but once you start to approach 20uS, then the smaller rings can be ignored or at least not detected to any great depth.

 

[Tony]

n/t

 

[gatorguy]

Tony is correct, but I think you are going to lose anything smaller in gold with that usec, unless it has some width like a man's ring. A question I am curious about when you say waves? are you hunting the shoreline and the waves coming in are breaking and going over your coil or are you hunting with it submerged? I used to live in Daytona Beach, which has alot of tidal change and the best place to hunt is just beyond the low tide line where items will stay in suspensionn, but at that point the coil is usually underwater and shouldn't be a problem. If you are hunting where the waves are rushing in and covering your coil, in my opinion, it is not the best place and you should go out a little deeper, but don't know your hunt condition, just trying to bring up ideas that may help. Don

 

[Joe Kononchik]

Thank you Toni! I can hunt the wet sand without to much problem. The problem is when I hunt in the water. Calmer days I use less disc. at 3 and rough water I have to go to 4.5 disc. I know the disc. knob is some forum of delay but I do not know what kind. After reading Toni's reply maybe I can ask Garrett to mod the SAT . I wish it was an variable I could change for different hunting. Also it would be Nice to have the sample delay on the out to play with. I wish I new which components to mod for easy adjustments. I have open it and there is room to play with. Thanks you for the info.Joe

 

[gatorguy]

Well even though I didn't get any answer on my post LOL, I will add some more. First Garrett isn't going to modify anything for you. Their PI is Software control, so to change anything you have to reprogram. You need to do what Tony says and increase the Pulse Delay untikl it smooths out, depending on how much you do that will determine how small gold you can detect. You can try it on dry land to see what signal the change makes. You would be well advised not to mess with the electrical components in the detector. You should talk with Garrett about problem and see if they have solution. Ground balancing properly will help some maybe. I am afraid their shielding on the coil is not great, it is also very sensitive and is why you have to change pulse delay, most anyone water hunting does that, Eric has talked about it at times on the forum. Don

 

[Joe Kononchik]

I will call them anyway. It does not hirt to ask. If I already have the delay so called disc. then all is to be mod'ed is the SAT. Like I said in the dry and wet everything is fine but when I get in the water the noise is a problem.If I could use it at 0 to 1 Disc I would be happy. The depth is great. May main concern is loosing to much small gold and depth to larger gold. Steve at AKmining gave me some advise is use the threshold as a sensitivity control. I still have to play with it to see want I can smooth out.hank you ,Joe

 

[gatorguy]

Good Luck! Steve is a very capable guy with a Infinium. Don

 

[Mr.Bill]

n/t

 

[Mr.Bill]

n/t

 

[Joe Kononchik]

I talked to Jerry do that the engineer Brent is out for a few more days. Jerry said the unit is regulated by programs. But he said I would have to talk to Brent to see if the SAT and/or Sample delay can be changed. I think it is setup good for a prostector but for a shallow saltwater hunter it is a bit noisy. Jerry like others said run the threshold down right below audio. It is a hard thing to do been use to listening to one.I will keep you posted,Joe

 

[gatorguy]

You will not loss much depth if you run just below the threshold zone, but it is good idea that will remove the problem, you will still get the same signal, but you also are going to have to turn up the pulse delay some as Tony has mentioned when in the water. Don

 

[Black Davy]

Joe,

I have used my Infinium once in FLA. I was on the east coast Jensen Beach area. This was a job related trip so I packed my plastic sand (grain / ice) scoop with holes drilled in it. Since this was all I had I worked the wet sand and in the crashing surf. I only had a tiny amont of falsing at first when I was in the no water to / 6" to 1' of breaking water. If I was in any amount of constant water I 6" or so I had no falsing of any kind. When I turned on the unit I ground balanced in slow and had some falsing in the crashing zone so I went to 1 on the discrimination after working in slow after 5 min or so the unit stabilized and I returned it to 0 disc. and set it to lock. I had a quite rest of the day, turned up some change and a small costume braclet. It is very important to run your coil wire straight up the back of the shaft and there is no such thing as to little velco to secure the coil wire. I use 4 velcro straps alone on the white plastic shaft and another 4 up above on the aluminum shaft. You need a small amount of slack for coil movement but very little. This could be some of your problem as it has been a issue with others in the surf. I have found this to be a very quite and stable unit.