Tiger Shark V Excalibur...WHY ?

[Dixie Digger]

ok peeps,iv owned both the TS and the Excal.can anyone answer this question....TS WILL find small gold like ear ring studs.its freq is 12khz....the Excal wont,and its freq is 1.5 to 25.5..i dont understand?

 

[guzz1]

I have a Sandshark same deal.....Guzz1

 

[Sandman]

I have both and can only say that I think it has to do more with the gain or construction of the coil. The Excal is a DD coil while the Tesoro's are concentric. My Excal 1000 does find earring studs and earring backs but not the thin gold chains without pendants. I haven't found any with the Sov GT yet.

In the fall of the year when I think the area is about cleaned out of big targets like coins and rings, I'll switch to the Tiger Shark for finding the little stuff. I get satisfaction from keeping a earring stud in my scoop for me to get a good look at. Just so long as I am able to get out there and hunt I am happy.

 

[Horsesoldier]

I think it's because of where the Excal's discrimination setting starts. Even when set at it's lowest disc setting the Excal won't hit on small items like you're describing, instead it "nulls" them out. Unlike other metal detectors that you can set at zero disc and hear all metals. Remember, the pinpoint setting on the Excal is not a true "all metal" mode it's for pinpointing. That's why you get better depth and target response in the Disc. setting.

Also, if I understand multi frequency correctly, a multifrequency detector bases its response to a target by analysing the signal and providing the best response at a given frequency. In the case of the Tesoro, or any other high frequency VLF for that matter, the higher the frequency the better its response to small low conductivity targets. Even though the Excal has 27 frequencies, once the target passes through the filters, its best response may be at a lower frequency and therefor gets disc-ed out.

I've always found that if you're hunting the surf the Excal is an excellent machine, however, if you want the really deep stuff or the "micro-targets" then the PI is the way to go. Hope this helps.

 

[Chi Town Bruce]

Last season I got a broken But, loud hit on what turned out to be a 14k very fine gold chain.

And by the way it sat on the scoop it was shallow (new drop) and stretched out.

I was swinging an Excal.!

 

[Keppy]

Well i have been useing the..Sovereign..since the came out and also had a Excailbur and they will not pick up small chains or studs.................When i got my first one back at about 1992 that was the complaint that every one had about them back then...........And it is still a problem with the Sovereign And the Excalibur.

 

[fliptopking]

We have both a TigerShark and an Excal. Some we hope to find something good , if not for anything else but to understand your problem.

 

[Sandman]

There are some things that we just have to take for granted while detecting. Finding thin gold chains is not high on my list of things I wanna find usually. They have no weight and are usually broken. It costs more to have them repaired to give as a gift and I am just as happy to see one laying on the bottom while snorkeling. The Tiger is sensitive to tiny gold chains but also bird shot which is a pain to realize that is what is falling through the scoop. If I use to small of holes on the scoop, shells and rocks won't drop thru.

 

[Keppy]

There are some things that we just have to take for granted while detecting. Finding thin gold chains is not high on my list of things I wanna find usually. They have no weight and are usually broken. It costs more to have them repaired to give as a gift and I am just as happy to see one laying on the bottom while snorkeling. The Tiger is sensitive to tiny gold chains but also bird shot which is a pain to realize that is what is falling through the scoop. If I use to small of holes on the scoop, shells and rocks won't drop thru.

Sandman i like my Sovereign would never get rid of it................Sold my Excalibur for i was going to quit water hunting now i wish i would have not sold it for i might want to go in the water again........

 

[findit]

something that i have been educated on here is that concentric coils are more sensitive to smaller targets as well as higher frequency. the tiger has both. only makes sense. detectors that are multifrequency actually choose the best frequency at that location and use only one. the excal or sovereign could be using one of the lower ones. as for depth the dd will go deeper at the beach and lower frequency will go deeper in general. so in a nut shell i think that is why the tiger is more sensitive to small gold but the excal goes deeper. someone correct me if i am wrong.


this is a question i just recently asked EASYMONEY:

about the minelab multi(or any other brand that uses multi like some whites or fishers). from what i understand it chooses the best frequency and only uses that one? but does it not have to send out multi first to choose the one.

response:

Hey Findit. How ya doin'?

In a way it does, but not actually. It "samples" the soil matrix in a microsecond with a range of frequencies all spaced within a nanosecond, then choses which frequency (might) work best in that soil or those conditions. It works sort of like a rangefinder on a rifle scope. First the distance is measured by looking at the different parameters, then the gun is shot. Sort of like that.

That was a very good question, as yours often are.

EasyMoney

 

[Treasure_Hunter]

I have found a couple small earring backs, not many, but a couple with my Excal. I also found a "lobster" clasp to a gold necklace, no other links was on it, just the clasp. Surprised me that I found it.

I have found no necklaces to date, but I did find another Gold ring today at Daytona Beach.

 

[Dixie Digger]

iv owned 5 Sovereign's ,4 Excal's,2 CZ20's,1 CZ21, 4 1280X's and 4 Tiger Sharks....the Tiger Shark's would find small gold and chains and yes #4 shot pellets,but it lacks depth on the beach only about 8"on a dime.my GT & S12 coil will hit a dime @ 15",my Excal's about 12" and CZ20 about 12"..the only one of these to hit a earing back or post was the Tiger Shark .i guess you just find a do/it/all detector!

 

[geckokid]

http://www.docsdetecting.com/coiltek/index.html

The benefit of using a Mono coil is that it goes deeper than a DD coil of an equal size. However, Mono coils can be somewhat noisier in heavily mineralized ground and they will not allow your machine to use it's discrimination abilities. It is best used in the "all metal" mode. A Mono coil is more sensitive to small gold and is easier to pinpoint with.


The benefit of using a DD coil is that if it is quieter and handles ground mineralization better. The penetration profile of a DD coil is such that you do not need to overlap your swings as much. But it does not go as deep as a Mono Coil of equal size, it is not as sensitive to small gold as a mono coil, and it is harder to pinpoint with.


That is the reason why I think the Tesoro Tiger Shark picks up on the small gold.
The Tesoro Tiger Shark has both, the Mono Coil and Higher Frequency (12.5 Khz).

SPECIFICATIONS

Operating Frequency........... 12.5 kHz
Searchcoil Type.................... Round, open center concentric
Searchcoil Size...................... 8" diameter
Audio Frequency.................. Approx. 270Hz
Audio Output.........................Stereo Piezo Headphones
Weight.................................. Less than 4½ lbs.
Battery Requirement.......... Eight AA DC (alkaline) - Included
Battery Life (at preset)......... 10 to 20 hours
Optimum Temp. Range....... 30° to 100° F
Operating Modes................. No-Motion All Metal - (Fast & Slow Tune)
...............................................Normal Mode
.............................................. Salt Mode
.............................................. Silent Search Motion Discrim-inate
Maximum Depth Rating..... 200 ft.