Multi Freq. ????????

[XT18000]

I have several detectors that use multi-freq.'s. On my GTI2000 I can change to any one of

six (6) different one's; but there is no info. as to what the freq.'s are. I'am aware of needing

too or maybe wanting or needing to change if hunting close to someone else or if there is any

outside electrical interference. What i want to know is there one that is better for coin's or

gold or silver or is it just a crap shoot.

 

Amazon Forum Fav 👍

Diving for Pleasure and Treasure - Grab it through Amazon!

[Eu_citzen]

Hahah lol the difference is so low it does hardly any difference there, it's only to minimize the disturbance from other detectors not change much of any performance. They are all around 7 Khz.

 

[utah hunter]

I have several detectors that use multi-freq.'s. On my GTI2000 I can change to any one of

six (6) different one's; but there is no info. as to what the freq.'s are. I'am aware of needing

too or maybe wanting or needing to change if hunting close to someone else or if there is any

outside electrical interference. What i want to know is there one that is better for coin's or

gold or silver or is it just a crap shoot.

EU is correct, it is just so you can hunt with other people and not drive each others detectors crazy. The only fruquency interchangeable single detector I know of is the xterra70, which has coils that run on different frequencies. Change the coil, and change the frequency. 3kHz for higher conductors like copper and silver, 7.5kHz for normal hunting and a good variety, and 18.75kHz for low conductors like gold and platinum and small targets. I would have liked to have seen the medium frequency at around 10 or 11, but that is just me.

 

[Eu_citzen]

DFX has also two freq. 3Khz and 15Khz or both and bla bla bla.

 

[XT18000]

Thanks for the input; one less thing to worry about when hunting

 

[U.K. Brian]

Hunter, Minelab have made a few machines in the past that allowed a choice of frequency with just one coil. These early gold machines evolved into the Eureka Gold....three frequencies at the flick of a switch (6.4, 20 or 60 kHz).

Compass beat Minelab many years ago with the Challenger X200. Two frequencies, just flick a switch. The coil changing of the new X-Terra's is a step back but I suppose it boosts profits.

 

[BestAntiquities]

You all sound like you really know this stuff so I have a question. Are these new multiple frequency detectors really deeper and better at producing finds than the single frequency detectors? Thanks

 

[EasyMoney]

Nope, and regardless of what you might hear regarding opinions, opinions don't pay the rent, cash does.

Here is how the multi's work compared to the singles, and remember that a multi of any kind cannot, will not, and has not ever run more than 1 (one) frequency at the same time:

They work much like human brains, in that our brains can only think one thought at a time, not more than one, and certainly not ever 28 or 45 or 120. If we did we would be totally confused and so would the circuitry in the detector. The Minelab, Fisher, and White's, etc chose, as in chews as in chooze which frequency the detector might incorporate in one given nano-second for the sampling reading it received at the prior split-second. This means that the multis have to run V - e - r - y S-L-O-W-L-Y to process all that information. This in turn cuts down on the detector's capacity to perform to it's max RMS peak output voltage potential. In simpler terms, it slows the detector down having to select moment to moment which frequency it might try at that instant. It only gets it perfect one out of millions of times too, don't let anyone tell you differently either.

In the case of selectve frequencies, there is much more involved besides operational frequency, the way a particular circuit handles the information plays an even more important role in this regard. I would suggest that everybody should read more about this, and if I remember correctly Tesoro has some engineering notes about whether or not any certain or near ideal frequency would work better than another one too. In reality, a 6.5 frequency will find gold (or silver, or copper,etc) as well as an 18.75 or a 12 Khz. It all depends on how or how well it's circuitry handles the information.

The frequency myth is little more than a relic from the past where originally it did make some difference, but now does not. Yes, to some degree search frequency does make some difference, but consider this; The Tesoro Tejon, is one of the deepest single freq detectors on the planet with it larger coils, but it runs in the higher freqs, around 18+ Khz but the various 14 Khz other brands do not get as good a depth as them by any means. And a 5 Khz Fisher does not necessarily get any better depth either. However, there is also a discussion about which freq will find gold better, or silver better too, and that too is now a falacy due primarily to refinements in circuitry technology.

As for the older Compass detectors, most of them have a tuned coil. A tuned coil has a small circuitboard in it that is tuned to impedence match the surrounding soil matrix likelihood, and to keep them more stable in relationship to the rest of the sending/receiving signals. In fact the Compasses did the very finest at it and even today they match or oftentimes beat the depth and discrimination abilities of the most modern of current detectors.. They are a bit heavy by today's standards though.

Here is the bottom line, in fact it's a matter of not just philosophy, it's also one of truth; A detector manufacturer will likely claim numerous ideologies to make their sales a winner, but it's info may be part truth, part fiction, and part little more than renaming something that it already has inside it's box. And as far as frequency choices by using different tuned coils? Well, if there was really anything to gain from this concept, then why doesn't that always hold true with other manufacturers who use one frequency and others use another to do the same thing when the freqs are nearly 15 Khz apart? And of course the answer is, that there is no need to actually switch frequencies at all when operating a well-made detector of quality build and design.

In simplest terms, the operating frequency means less than squat, and it's been that way for at least 5 years now for the current metal detectors available to us. . And yes, as long as we stay below 20 Khz and above 3 Khz we could find or operate a detector just as well with one frequency as another in that broad cycle range. Just like a politician, the mfgs like to tell you what you want to hear, and not necessarily the truth.

The only really good reason to change the audio frequency (not the operating frequency) is to avoid crossover (inductance) talk between two different detectors, nothing more.

Have fun hunting.

EasyMoney

 

[BestAntiquities]

Easy I've heard good things about the Compass detectors before and you're not alone in your opinion. Many times I've thought about getting an old one to play with. Is there one Compass model that stands out as the best or are they all good?

 

[EasyMoney]

Well Best, they are ALL good when in good condition. And it's not my opinion either, because I have no opinions, I only deal with facts, something that really irks a lot of people.

The Coinscanner Pro is probably the best overall coinhunter I have ever seen in my life, complete with a night light. And the Relic & Coin, Goldcsanner Pro and the au2000 and au52 are some of the best nugget hunters ever made, rivaling the Fisher GoldBug and GB2 for very good depth on very tiny objects, nuggets included. The R&C, CS Pro, Sc Pro and GS Pro all have a very good analog meter, and all Compasses have superior iron discrimination. The Coinscanner Pro and the Scanner Pro are two very tight cherry-pickers, and I mean VERY tight in between two objects, one a good target and one a bad target. I view them as #1 and #2 for the best overall coinhunters ever made. They do not get quite the depth as the other models though, mostly because they run 4.5 volts compared to about 6.5 volts to the searchcoil form the gold search models. And yes, they are all excellent relic hunters too, including the cheapest one called the Scanner, one with nothing fancy on it at all.

The au52 once found a nugget about the size of a large dot on an "I" inside a 4 1/2" piece of quartz. It reportedly is the smallest gold nugget ever found with a metal detector and documented, and it now graces the halls of some casino in Reno, Nevada somewhere, or so I last discovered. The Compasses DOMINATED the nugget field for 10 to 15 years back in the 80's and early 90's. The eliptical coil is a real hot one for nugget hunting, and the 3" coil fits ALL Compasses made after around 1980. It goes almost as deep as the 8" but cherry picks even better and it's a dream to use in tall grass. The only other detector line that even closely rivals the abilities of the Compasses is the Tesoro line of detectors. The F-2 and F-4 beat them for cherry-picking and nickel/pulltab discrimination abilities, but that's where that all ends too. A GoldScanner Pro can find a BB sized bugget as deep as 7" in very nasty soil, and can do even better than that in milder soil.

The even older models such as the 80, 100 and 200, were some very elaborate and deep searching detectors, but were a bit on the too heavy side for some people's preferences.

(Up to a saturation point), the faster you swing a Compass, the deeper it will go, and it's because of it's different filter system.

EasyMoney

 

[Willy]

An X-100 Challenger will beat the pants off most anything made today and will give you manly forearms too!! ..Willy.

 

[BestAntiquities]

Thanks Easy and Willy! I'm so glad I found this site. The people are sooooo nice here! How does a site of this size have such understanding and kind people? No wars and everyone gets along!

Maybe you guys would appreciate this. I was going to post this in Comedy Central but then with my luck the guy who wrote it is probably a member here

This is all in fun

Question: Does this guy dig buttons the size of hubcaps?

From: DetectorReview.com

"If I had to have one detector it would be a Nautilus DMC 2B hands down. For the price Nautilus sells for they are by far the absolute best bargain in detectors out there (I see used ones often in the 300.00 range). I have dug buttons close to 20" in good sandy soil with the 2B using a 10" coil -- none of my other detectors have ever come close to that!! In my book NAUTILUS RULES!!"

Ya baby!

 

[EasyMoney]

Well Best, here is a news flash;

The Fisher 1270, Garrett 2000 and 2500, the Tesoro Tejon, and ALL Nautiluses will find CW buttons very, very deep. And I mean VERY deep. All would be using their very biggest (10" to 12") coils too.

In an AIR TEST the 1270 and the Tejon could (possibly) find a CW button at up to 16", but in the ground in very, very mild soil that depth will be reduced to 10" - 12" max - if enough of the metal has leached into the soil as the button gives off some of it's tiny bits and pieces of metal due to deterioration. And no, I'm not talking about any "halo effect" either, that's not the same thing as a bunch of tiny broken off metal particles surrounding the target. Yes I know that some people claim otherwise, but sometimes people have big imaginations just as they do concerning fish stories too.

The Garrett 1250, 1500, 2000, and 2500 can sometimes find them almost as deep as the 1270 and Tejon, but the Garretts lose more depth in the ground than do the other detectors mentioned above. Give them around a 14" air depth and around 10" in the ground, not real bad in anybody's book.

The Nautiluses though, are some really, really depth-defying machines, but a real pain in the cachukas to operate, especially when the soil gets nasty. They do manage to get some amazing depth in the soil near the area where they are manufactured though . But the only way this can be accomplished is to tune and retune the detectors and their coils every 5 minutes or so. These machines are akin to trying to grow apricots in UpState New York, a real tough assignment because they require more attention, coddling, and warmth-keeping than a gorgeous blonde who only dates really very wealthy men and expects a trinket or two just because she spent her precious time with them. I can easily believe that one could achieve a depth of 12-13" in very mild ground, but only under ideal conditions, meaning almost zero minerals i.e. salt-free sand or totally mineral-free silt. A CW button could easily be detected with a Nautie (in air) at 16". Is that close to 20'? Mayby not, maybe so. 16" is a lot closer to 15" in my book.

My Compass R&C can find one in that same type of soil at 11" with it's 12" coil, but again only under ideal, almost laboratory-type conditions. The Compass however, is the ONLY ONE of all listed above that could find the same CW button at 7" in this rotten, nasty, high-iron soil we have here in the far west. The others might as well be left in the trunk.

Oh, and yes although Oregon was neutral in the war and consequently was not involved in it, we still had 2 or 3 forts here during that time period to protect the settlers from marauding natives and roaming no-accounts out to score a hit now and then. The fort closest to me was Ft Hoskins, an area where robbers, murderers, and thieves holed up in the thick brush and forests surrounding Ft Hoskins for many years before they were routed out.

EasyMoney

 

[X-Terra70_TreasureHunter]

Hi it sounds like you need to contact Garrett Tech support
to get this Question answered.

Dave

 

[Shenandoah Digger]

My boy Easy is wicked smart, to paraphrase a line from "Good Will Hunting". And all this time I believed the ad of the Explorer shooting hundreds of frequencies into the ground at one time! Poor, poor pitiful me.

 

[EARTHLING]

does NOT matter what freq. you have....... its whats INCORPORATED in to the CIRCUIT that makes it hunt the way it does...... i had a 30 min. conversation the other night with MR. BILL about this