EXCAL IN PIN POINT

[River Hound]

A whole different animal.Yesterday was the first day I felt like I was using a great machine.Didn't find anything cool but I let the detector work instead me swinging a detector.I know I wouldn't have the patience to use it like this all the time unless I truly felt theirs deep gold beneath my feet but it was very cool finding targets that small at depth.I hope gold sounds like nickles with this machine because it was the cleanest, short and solid signal I heard not like a pull tab.Happy excal user
The piece on top does that look like one of those old bathing suit clips Ive heard about. Thanks

 

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[bigscoop]

Big Scoop: With the stock slim line Tornado 8 inch double D search coil ( which is actually 7.5 inches), You should be able to detect a quarter size coin at 9.5 inches.

On single frequency and multiple frequency VLF detectors the maximum depth for a quarter sized target can be approximated by adding 2 inch to the diameter of a Double D search coil. This formula is accurate for DD search coils up 15 inches in diameter.

With this formula the maximum calculated depth for a 15 inch WOT (Wounderful Orange Thing) DD search coil manufactured by Coiltek for this size target would be 17 inches, which is close to Treasure Hunter's experience of pulling targets from over 15 - 16 plus inches.

On a quarter, I would say that is pretty accurate. But change the alloy, toss in some elements, and maybe not so accurate. Most of the testing I've done on the beach for myself has been done with various gold targets of different k's, both yellow and white, or nickels, since these are the range of alloys/items that I'm after.

 

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[bigscoop]

One of the areas I still have trouble with is in the following scenario;
Let's say I'm in disc and I get a null with a favorable threshold reaction, so I switch to PP. Sometimes I can't tell if it's a tiny piece of crap close to the surface or a deep, faint target that's just on the edge of the detection range. I ran into this at least a half dozen times yesterday. Just tiny pieces of crap.

 

[OBN]

Matrix of the sand can affect all, along with many other factors. 10 inch coil OC maryland, PP mode 18 to 20 inch silver dollar, scoop is 14 inch's longnose RTG..

Plus one must remember the field on the coil, in PP mode will reach out, the higher the senstivity the further it reachs of the sides..

side view, remember blade


click picture to see the difference

 

[bigscoop]

That's odd Joe, seems to me that I have a much broader halo in Disc then I do in PP. Seems I can get a much tighter target signature in PP then I can disc. Now you've done it....back to the beach with my bag of goodies again!

 

[OBN]

Remember blade,............... it is easier to single out targets with the blade. When your on the wetsand with normal settings pp mode, swing the coil level, about a foot away from the scoop, then turn up the senstivity up you will see it reachs out more, From the front edge, The Blade. Then turn your sens back down to normal and over to discriminate...Check....

 

[bigscoop]

Remember blade,............... it is easier to single out targets with the blade. When your on the wetsand with normal settings pp mode, swing the coil level, about a foot away from the scoop, then turn up the senstivity up you will see it reachs out more, From the front edge, The Blade. Then turn your sens back down to normal and over to discriminate...Check....

I just, very quickly, did a simply air test with a dime off the front of the 8" coil and the halo was noticeably larger/longer in disc then in PP. But, this was just an air test and with the stock headphones. I'll play with it at the beach the next time I'm there. I get what you're saying as far as depth goes and I even apply it quite a bit. But it seems I have better halo detection capabilities in disc, but again, better headphones could change this since the responses in PP are so faint a great deal of the time. Might be getting them, just can't hear them as easily.

PS: Are you talking actual tones or just threshold breaks?

 

[OBN]

I will have to do a video for you on my next trip to the beach, should be this coming week. At one time I had setup a test were I could trace the fields by doing freeze frames as the target broke the threshold, I did a couple trials, airtest, and noticed that when running the excalibur hot in the PP mode the field was more Balloned. Now I wish I would have took the time to capture it.

Now on the beach when I run in PP and most of the time I run about 10 to 9 am, which is very Hot, I can pick up coins several inchs deep and off to the side of the coil. Now these can vary from a bark to a disruption of the treshold based on distance. I'm sure some of this is aided by the use of the amp and headphone setup I have. Which from this video one can tell there is a advantage, and this is a 8oo with the 7.25 coil and the target is a clad quarter.



Keep me informed on your test and settings..always good to several samples

 

[bigscoop]

This is exactly why I want to upgrade my headphones. Doing air test here in the house I can hear those faint threshold breaks, but on the beach, with all the noise of the surf, breeze, etc., I don't trust that I'll hear them because I probably won't. I use PP a lot, but only when my full attention is going to be focused on what I'm doing for a very short time, like when investigating a null/suspected target, etc. But for general sweeping, most of the time I use disc unless the surf and breeze is flat, which is rare here. (Coil control is also an issue at times because of the typically strong currents.) I also use PP a lot when hunting those steeper sand bunkers where smaller chains tend to be found, those faint threshold breaks often being the only clue of their presence. In fact, I think I'll do the basic headphone mod this week. By the way, are yours ready for market yet?

 

[OBN]

They are still in the research department, but I hope by spring. Headed to the ocean, maybe thur n friday to see if I can do some more adjusting for the discrimating hunter........they work great for PP, but seems they are out of tone on disc tones compared to stock koss's.

 

[bigscoop]

They are still in the research department, but I hope by spring. Headed to the ocean, maybe thur n friday to see if I can do some more adjusting for the discrimating hunter........they work great for PP, but seems they are out of tone on disc tones compared to stock koss's.

Sounds good! Can't wait.

 

[s.c.shooter]

What do you mean by reverse disc?

 

[River Hound]

What do you mean by reverse disc?

Hi you get a siginal in pp/all metal mode and switsh to disc to see if still good signal or just to hear what it sounds like