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George, let me share my thoughts.

February 20, 2023 07:08PM avatar
The Equinox and the Deus too can both operate in SF mode with a wide selection of frequencies.

Correct, for higher-dollar units. And we can't forget the Deus II with SMF or selectable SF's. Personally, I prefer their simpler model, the ORX. Like the Deus, no SMF but a splendid choice of operating Frequencies.

In this thread George Payne was mentioned and I often refer to one of his write-up regarding Frequencies and why he chose 12.5 kHz for the Treasure Baron. Since most folks are searching for Coins, or usually similar-shaped trade tokens, we know some have lower conductivity, such as a US nickel, while others are at the upper-end at a higher-conductivity such a copper and silver coins. Thus, George concluded that 12.5 kHz would be about ideal to be responsive across the wide range of common conductivities of most Coins and even Tokens and Gold Rings of various sizes.

Performance wasn't a big surprise to me because I had been using a lot of detectors that were at or close to that Frequency since the latter '70s. I was using 15 kHz, 12 kHz, 12.5 kHz and 10 kHz. And like I explain to folks, if George's Frequency choice was at a good central Frequency or mid-Frequency, just go plus-or-minus 2.5 kHz and what do you have?

12.5 kHz = 2.5 kHz = 10 kHz

12.5 kHz + 2.5 kHz = 15 kHz

Most detectors I have favored for general-purpose hunting since the late '70s operated in the 10 kHz to 15 kHz range. My very proven Tesoro's were mostly at 10 kHz or 12 kHz. The White's MXT Pro is 14 kHz, the Makro Racer & Racer 2 at 14 kHz, the Nokta FORS CoRe is 15 kHz, an the list goes on.

Now, we do know that there can be some advantages to using a somewhat lower Frequency, helping with more mineralized ground and being more responsive on higher-conductors, just as there are advantages of going a little higher Frequency for an edge when searching for lower-conductors such as our Nickel or for gold chains and rings.

Usually we do not need to adjust too high or too low to gain those advantages. Right now, my detector outfit includes the Whites XLT operating at 6.6 kHz and all that I have owned have done an exceptional job hunting sites for higher-conductive targets. And for places where the lower-conductive targets might be, I have two higher-Frequency units, my Nokta FORS Relic and Fisher F-19 Ltd. which both operate at 19 kHz.

For most places a good detector in that 10 kHz to 15 kHz range will get the job done, and in "most places" I still find the bulk of the desired targets from surface to about 4" with a deeper target down to about 6" or sometimes 7". If I decide go hut an old park or sports field or some place where there is a good chance that an older coin, especially silver, might be deeper, then yes, I will grab a SMF, such as my Vanquish 540 Pro, in the hope that something is out there and I might get a better VDI as well as audio response to check out.

I also know I've done well with some SF units, but I do have the V-540 because there is the chance for a bit of an 'edge'. Most often I have been working places with a high level of ferrous debris and gaining any depth is out of the question. My chosen SF units and a smaller-size coil give me the necessary advantage.

Keep in mind that not all SMF's seem to be impressive. Think back to your yard and your tough test-box, and your 3-Frequency White's V3i SMF vs their 14 kHz MXT Pro using the same 6½" Concentric coil. And the clear winner was -----

Also, we do not always need to use a higher-dollar SMF to get very good performance. Just like my Vanquish 540 Pro, which is Multi-IQ only, the Garrett Apex does quite well in SMF, dry and and wet, and it also provide a SF selection of 5 kHz, 10 kHz, 15 kHz and 20 kHz. I enjoyed my better SF performance at 15 kHz and 10 kHz was 2nd.

To complement my V-540 Pro I am planning to get the new Minelab X-Terra Pro which is a SF detector with providing 5 kHz, 8 kHz, 10 kHz and 5 kHz depending upon the search mode and operator Frequency selection. (That 'official' announcement for USA release should be coming in early March.)

You honestly don't need any other detector. That is what draws people to these units, not to mention their reputation. There isn't an environment that these SMFs can't work in.

Really? How about working the expensive, 3-Frequency V3i or VX3 in a good environment against a 14 kHz MXT Pro? I would gladly put a few of my other detectors against it, and I have done so against a few other SMF's. It isn't only the number of Frequencies, it is how all the rest of the circuitry design works.

And again, we can't forget search coils used. An 'OOR' DD or 5" DD on a 14 kHz Racer or Racer 2 or FORS CoRe is very tough to beat. So is the 5" DD on a FORS Relic. Remember, a lot of SMF's do not have a very good smaller-soil option.

Yes, as UtahRich stated Monte is more of a Single-Frequency guy ... but I also know when and where a good performing SMF might have some advantages. For those places I have one. Soon I hope to have a 2nd SMF that will offer more than the Vanquish.

In the end it really gets down to the type of sites we choose to hunt, the type and amount of debris we might encounter, and what detector and coil we feel most comfortable using.


"Your EYES ... the only 100% accurate form of Discrimination!"

Stinkwater Wells Trading Post
Metal Detector Evaluations and Product Reviews
I'm now 'back home' in Farr West Utah
monte@ahrps.org ... or ... monte@stinkwaterwells.com
Detector Outfit: A selection of my chosen makes and models, with the best coils mounted for the tasks I'll take on.
F-19 * F-5 * Racer * Racer 2 * V-540 * Relic * Silver Sabre µMAX * Bandido II µMAX * XLT
Pinpointers: Garrett AT Pro-Pointers .. Headphones: 'Hornet' .. MS-3 Z-Lynk .. ML-80
*** All working well today to make memories for tomorrow. ***

Edited 1 time(s). Last edit at 02/20/2023 07:10PM by Monte.
(view changes)
Subject Author Views Posted

Looking at a lot of posts from various Forums, I noticed ..

Monte 165 February 19, 2023 09:49AM

Re: Looking at a lot of posts from various Forums, I noticed ..

glabelle 127 February 20, 2023 09:41AM

George, let me share my thoughts.

Monte 96 February 20, 2023 07:08PM

Re: George, let me share my thoughts.

glabelle 85 February 21, 2023 12:13PM

Exactly my point.

Monte 96 February 21, 2023 12:26PM

Is there a Dr in the house?

UtahRich 147 February 20, 2023 11:25AM

Re: Is there a Dr in the house?

kac 95 February 20, 2023 08:14PM

Re: Is there a Dr in the house?

glabelle 87 February 21, 2023 12:22PM

Each Person must find their own path - PG13

UtahRich 112 February 21, 2023 01:36AM

There are many paths, and some folks blaze new ones.

Monte 85 February 21, 2023 12:07PM

Re: Each Person must find their own path - PG13

xpmoguy 84 February 21, 2023 11:14AM

Prep'ing for Success in 2023 -

UtahRich 86 February 21, 2023 12:19PM

Don't hesitate to post you success afield.

Monte 72 February 21, 2023 12:12PM

Re: Is there a Dr in the house?

Kickindirt 112 February 20, 2023 07:59PM

Re: Is there a Dr in the house?

OregonGregg 75 February 21, 2023 09:48AM

OUCH !!!

OregonGregg 125 February 20, 2023 12:03PM

He chose "poorly"

UtahRich 120 February 20, 2023 12:57PM

Re: He chose "poorly"

jmaryt 83 February 21, 2023 01:04PM


UtahRich 139 February 21, 2023 01:21PM

Re: LOL.

jmaryt 67 February 21, 2023 07:12PM

Am I being hoodwinked ??

OregonGregg 100 February 20, 2023 01:06PM

winking smiley N/T

UtahRich 66 February 20, 2023 07:00PM

Re: winking smiley Okey-Doked

Utmike 94 February 20, 2023 10:05PM

It's getting tough out there.

OregonGregg 94 February 21, 2023 09:41AM

Emergency First Aid

UtahRich 73 February 21, 2023 11:56AM

Bring'r on

OregonGregg 110 February 21, 2023 12:17PM

Bring'r on

UtahRich 105 February 21, 2023 12:44PM

Rich, just even the odds ....

Monte 127 February 21, 2023 06:45PM

Showdown part Deus? Attachments

Utmike 120 February 21, 2023 02:22PM

LOL - Showdown at the OK Corral

UtahRich 80 February 21, 2023 03:55PM

I like Minelab

OregonGregg 72 February 21, 2023 05:12PM

Re: I like Minelab Attachments

Utmike 77 February 21, 2023 07:08PM

Re: I like Minelab

OregonGregg 80 February 21, 2023 07:30PM

"Me and the ol' Core do better under pressure"

Monte 72 February 21, 2023 12:33PM

Re: Looking at a lot of posts from various Forums, I noticed ..

D&P-OR 94 February 20, 2023 10:06AM

Re: Looking at a lot of posts from various Forums, I noticed ..

glabelle 133 February 20, 2023 12:53PM

Agree 100%

OregonGregg 92 February 20, 2023 01:40PM

NASA Gregg has spoken grinning smiley

UtahRich 107 February 20, 2023 03:23PM

Catching up to the Minelab Equinox 800 - Detector Wars

UtahRich 115 February 19, 2023 04:26PM

UtahRich, a reply to maybe clarify.

Monte 129 February 19, 2023 06:40PM

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