Pulse Detector Depth Proformance

[daverave]

I have worked with and tested for a year the GPX5000, Garrett ATX and some other PI detectors amongst which some home projects. I have found no evidence of more depth in wet sand or soil vs air.
I would advise you to get out with some of those folks that claim the insane depths and measure with a tape their pot holes while they are digging. You will find that there a lot of bst in people's claims.

i didnt know that as i was always under the impression that pulse detectors went deeper in wet sand than air...its something i never really tested for in the past.

[N@SKO]

The only PI detector that can get this kind of depth on modern coins is the GPX from Minelab and perhaps the Lorentz.
Since no one have ever managed to copy these two I do not see how anyone with another much less advanced PI would get these depths. I wouldn't worry much if I was in your place as these claims are quite far fetched.
When folks bury coins at the bottom of a hole they can get even 25" depths, but those are not real results as every pot hole will enhance the signal strength from any target.

Your Nexus MP detector can you find ancient coin at that depth?

[Nexus]

daverave
this attitude leads to depression. ask any experienced detectorist if they got a lot more finds when they moved from middle level to top level detector. no, they did not. it is how good you understand and feel your machine.

Detectorists TV show is one of the best ever

Top level detector would suggest more depth and with it more fiddling with proper target ID. If you get to dig deeper holes you will end up in the end of the day with less finds, as digging holes takes time.
Experienced detector users do not concern them selves with number of finds, but their value and quality.
The really cool stuff are still deep down well out of range for most machines.

[Nexus]

..Nexus i always thought pi detectors go deeper in wet sand than in air ????

I have worked with and tested for a year the GPX5000, Garrett ATX and some other PI detectors amongst which some home projects. I have found no evidence of more depth in wet sand or soil vs air.
I would advise you to get out with some of those folks that claim the insane depths and measure with a tape their pot holes while they are digging. You will find that there a lot of bst in people's claims.

[daverave]

Hi George...i know what your saying but where i detect on the local beaches good targets are drying up partly cause of some local detectorists who want it all and are hammering the beaches nearly every day with good proformance machines...even old pennies which use to be so common to find are now not hardly being found so the guy i mentioned who has made this deep detector has said that the heavier gold rings and old pennies are now out of range even from detectors like dual fields and some minelabs...one guy who detects nearly every day has bought a white's tdi sl and he is finding gold rings again from worked out places....so i cannot compete with these other guys so it makes one feel like giving up...the guy with the home made deep detector said like about summer finds on the beach coming up....but i dont like having always to compete with other people...and just like to be maybe on a local beach by myself looking for maybe some old items with a machine that has the depth to find out of reach very old items which is more of a challenge to me....maybe im loosing the plot

[Qiaozhi]

daverave
this attitude leads to depression. ask any experienced detectorist if they got a lot more finds when they moved from middle level to top level detector. no, they did not. it is how good you understand and feel your machine.

That reminds me of another story. I was in a metal detector shop several years ago, and got talking to a guy there who was looking at some of the newer detectors. He and his friend had both purchased a Whites Classic 1, and on their very first outing his friend unearthed a gold torc bracelet worth about £2,000. He was complaining because up to that day he hadn't found anything of value with his own Whites Classic. His friend then immediately upgraded to the latest and greatest detector (don't remember which one he said) but since then he also hadn't found anything significant either. Which just goes to show that you need to have the coil over the target in order to find it, and you don't necessarily need to have what you think is the ultimate detector.

[ivconic]

daverave
this attitude leads to depression. ask any experienced detectorist if they got a lot more finds when they moved from middle level to top level detector. no, they did not. it is how good you understand and feel your machine.
Detectorists TV show is one of the best ever

"...ask any experienced detectorist if they got a lot more finds when they moved from middle level to top level detector..."

Sad truth!
I was much more successful let's say with Cscope 1220B than now with XP Deus.
50 times more!
It's because of several reasons;
-fields were not that exhausted back than as they are now,
-"weaker" detectors do demands more user's involvements, which is good in a way; you have more patience and you are more careful,
-despite the great technology involved in; it is still damn stupid machine, you can't rely on it's accuracy more than 30-40%, the rest of job is on you to decide about detected signal..
and so on and so on...

[RH-Lightning]

daverave
this attitude leads to depression. ask any experienced detectorist if they got a lot more finds when they moved from middle level to top level detector. no, they did not. it is how good you understand and feel your machine.

Detectorists TV show is one of the best ever

[ivconic]

BTW...
that's why this is so great and real, because it displays 101% reality from our hobby:
http://www.imdb.com/title/tt4082744/

[ivconic]

i have really tried hard to get good proformance from basic designs like surf pi but really there is only so far you can go with these circuits...ive had problems with earth cancell with nearly all my surf pi projects...and you come to a point where you feel like giving up trying.....its ok for people who can afford GPX Lorentz tdi pro's but im not in a situation where i can afford one...i just want to have a chance against other detectorists who have machines with good depth cause where i live most gold items and old coins are deep like 18" plus...tdi pro or maybe gs 5 could have given me a chance of some success but they are out of my reach....sometimes i wish i had the knowledge to make a really deep seeking detector from scratch but because of my depression and anxiety problems and lack of expertise its hard for me to do...i just get so frustrated...Nexus i always thought pi detectors go deeper in wet sand than in air ????

You are not alone. More/less majority of us feels the same most of the time.
But, read Quiaozhi's story about rally again and take it as ultimate truth and rule.
Most precious finds in my "career" were not deeper than just few inches bellow the surface.
Every once in a while there is rare find, deeper than that, but statistic is mostly in shallow finds favor.
Main "element" is still luck. And random coincidents.
You don't need "heavy artillery" to catch gold coin; you need luck.
And patience.
SurfPi, Barracuda and look a likes are all lacking of GB circuitry, so there is no wonder why are you experiencing troubles.
PPS at 600Hz and "fast" coil on such machine will constantly struggle with ground conditions.
Make SMW or "Magnum on steroids" if you want to go much deeper. But be ready to dig lot of irons too.

[daverave]

i have really tried hard to get good proformance from basic designs like surf pi but really there is only so far you can go with these circuits...ive had problems with earth cancell with nearly all my surf pi projects...and you come to a point where you feel like giving up trying.....its ok for people who can afford GPX Lorentz tdi pro's but im not in a situation where i can afford one...i just want to have a chance against other detectorists who have machines with good depth cause where i live most gold items and old coins are deep like 18" plus...tdi pro or maybe gs 5 could have given me a chance of some success but they are out of my reach....sometimes i wish i had the knowledge to make a really deep seeking detector from scratch but because of my depression and anxiety problems and lack of expertise its hard for me to do...i just get so frustrated...Nexus i always thought pi detectors go deeper in wet sand than in air ????

[Nexus]

And why should be copied Lorenz or GPX from Minelab when can someone invents his way ?

Because PI technology requires far more sophisticated electronics to achieve results better than GPX and Lorentz. Simplified PI's just don't get this job done.
Of course there are many PI guys that will show some startling air test results, but the ground is a different matter.

[ivconic]

I was once on a detecting rally where everyone was complaining about lack of finds. There were quite a lot of people there with many different detectors. Towards the end of the day I was talking with an old lady who was using an ancient C-scope. She wasn't able to walk very far, so she had mainly detected by the entrance to the field. In her finds bag she had two lovely shiny gold stators. Needless to say, once she showed her finds to others, they were all over the area like a rash ... but found nothing. It just shows that you don't necessarily need to have the best detector, just a little patience. Many times I've seen the same folks racing around the field like a demon, and then going home 2 hours later empty-handed and saying that the dig was crap. On a few occasions I've dug up roman coins near the field entrance, which literally hundred of detectorists have passed over. You've got to take it more slowly and don't get obsessed by depth.

Nothing but plain truth!
Most of the precious finds that i remember were very shallow.
But also constantly missed by field "runners" (me too).
Then it comes the "old man" with "old detector" and collects them easily.
We have pretty old (1944.) man in a crew. Carrying F4 most of the time.
He has both bad knees and lot of pains, so he walks slowly like a snail.
At the end of a day; he smiles and the rest of us are felling miserable!
Main wisdom is; walk slowly and catch the "edges" son!

[Qiaozhi]

this local guy ive known for some years and he is a real good electronics engineer but like many people gets idea's from detector sites like this one maybe...he got hold of the gold scan 5 diagram as posted on this site and used the best parts of the circuit to get a very stable proformance with vco (not click click type)and using digital chips for the oscillator and timing pulses and he made his own multi strand litz wire with teflon tape...and even plans to use an lcd ID meter for some sort of discrimination circuit that he has developed.....he texts me and tells me his latest tests which really rubs salt into my wounds
this guy is one of the most successful detectorists in our area and over a period of about twenty years has found approx between 5-6 thousand rings...the problem is that now most of the rings say that are buried 16" down have been found i would say...and another guy has bought a white's tdi sl and things have opened up again for him finding more rings...and now this other guy boasting 22" on a 50p coin with his home made machine has really made me want to give up cause what will be left to find ???? my depression has got worst now and i cannot even go in my workshop and do any projects....whats the point ??? i guess im just going through a bad time in my life but these greedy detectorists make me feel like ****.

I was once on a detecting rally where everyone was complaining about lack of finds. There were quite a lot of people there with many different detectors. Towards the end of the day I was talking with an old lady who was using an ancient C-scope. She wasn't able to walk very far, so she had mainly detected by the entrance to the field. In her finds bag she had two lovely shiny gold stators. Needless to say, once she showed her finds to others, they were all over the area like a rash ... but found nothing. It just shows that you don't necessarily need to have the best detector, just a little patience. Many times I've seen the same folks racing around the field like a demon, and then going home 2 hours later empty-handed and saying that the dig was crap. On a few occasions I've dug up roman coins near the field entrance, which literally hundred of detectorists have passed over. You've got to take it more slowly and don't get obsessed by depth.

[Orbit]

Something always stays !Without depression !