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More finds with a new frequency. Other settings might differ.

April 08, 2020 02:56AM avatar
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Remfire
I found your post regarding frequencies interesting as I had an experience with changing frequencies today.

I went back to the military area I hunted a few weeks ago, trying to expand the search area. After a hike with meager findings I passed through the area where I found coins. I was using my Deus and had been hunting with a custom program, but as I searched this area again I switched to programs #9, HOT. I got a iron type signal with a squeak in it, and after checking it several directions and a foot scrape or two, I switched to 7.7 KHz and the signal improved, but was still pretty iffy. A couple of shovel scoops localized the signal and a swipe with the pinpointer located a 1943s Merc. Another pass with the Deus determined there was still a scratchy signal there. Another search with the pinpointer and I found the “iron,” a steel penny. I assume it’s a1943 but it’s so rusty the date is unreadable.

I might have walked away from this signal if I hadn’t been able to change frequencies.


I do like some 'Selectable' Frequency models because I can be in control of what is and isn't working, Going backwards in your post, I have also enjoyed being able to select a different operating frequency using an XP ORX, Nokta / Makro Anfibio Multi, Multi-Kruzer and Impact, to cross-check a questionable signal and been able to audibly, and sometimes visually, classify it as probable trash or a potential keeper, then made the recovery to see the results.

The one thing to note is using this 1-Detector / Multiple-Frequency approach, we are still dependent on that particular detector's circuitry design and behavior. The other method could also be marking those questionable targets and changing detectors to one that operated at a different frequency, which would also have to factor in that it had a different circuitry design. That is the method I used to use quite often when I'd go hunt many older sites. My advantages is that I wasn't a 'wanderer who scurried off in a random number of directions for one or two hundred yards. I'd park, then either mark off a search grip, or visually eyeball an area, and search in rather close proximity to my vehicle. I'd recover the good signals and on those 'questionable iffy' signals I'd flag them. Then after working a dedicated area I switch detectors and do more hunting for items missed, and to check the marked questionable targets and recover them, unless I was checking with 2 or more detectors in which case I'd jot down the results of each detector used and their operating frequency.

So in your example, as I do now or have in the past, we are relying on a known 'selected frequency' to check or double-check the signal, then recovering it to verify any conclusion we might have made. I know that sometimes this search method can be rewarding, but I also know that there have been times when I double-check a targets using the same operating frequency in two or more models, and there have been some pronounced differences between two or more detectors simply based on the overall circuitry design.

Even if we can use the same size and type search coil on different detectors, there can be a surprising difference4 in the end performance. That's why I don't like to put full-faith in a Simultaneous Multi-Frequency model or in just one brand or models with a Selectable Frequency when I know that some stand-alone single-frequency detectors can still match or better them in some tough challenges.

Congrats on the silver, and the fact that it probably helped you find the steel 1¢ coin.

Monte

PS: When we have a model that offers a selectable frequency option, we should devote some time to working with Test Samples and also in the field in different search environments to try not just one frequency change, but several. All of them, of possible, to better learn the strengths and weaknesses of using a different Higher Frequency or different Lower Frequency than our selected search frequency. It's to our advantages to know the trade-offs if we over-adjust.

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

Stinkwater Wells Trading Post
Metal Detector Evaluations and Product Reviews
monte@ahrps.org ... or ... monte@stinkwaterwells.com
503-481-8147
Detector Outfit: A selection of my favorite makes and models, with the best coils mounted, for the tasks I'll take on.
Pinpointers: Pulse-Dive & ProPointer AT .. Headphones: 'Hornet' & 'Wasp' .. MS-3 Z-Lynk .. ML-80 .. N/M Green edition
*** All working well today to make memories for tomorrow. ***




Edited 1 time(s). Last edit at 04/08/2020 03:14AM by Monte.
Subject Author Views Posted

Nice handful of relics picking through the iron with the Equinox

diggindeep 253 April 05, 2020 01:44PM

Re: Nice handful of relics picking through the iron with the Equinox

Goondock 131 April 07, 2020 10:23PM

More finds with a new mode. . . . . thumbs up

UtahRich 167 April 06, 2020 06:24PM

Re: More finds with a new mode. . . . . thumbs up Attachments

Remfire 171 April 07, 2020 11:01AM

More finds with a new frequency. Other settings might differ.

Monte 137 April 08, 2020 02:56AM

Re: More finds with a new mode. . . . . thumbs up

Goondock 133 April 07, 2020 10:26PM

Re: More finds with a new mode. . . . . thumbs up

silverhound2 136 April 07, 2020 09:36PM

Beauty is only "skin deep", esspecially with some coins and tokens.

Monte 137 April 08, 2020 03:11AM

Re: More finds with a new mode. . . . . thumbs up

OregonGregg 137 April 07, 2020 09:57AM

Frequencies -- Multi Vs Single. thinking ... and What Frequency?confused smiley

Monte 155 April 07, 2020 09:49AM

Multi Vs Single. thinking ... and What Frequency? thinking

UtahRich 132 April 07, 2020 07:34PM

Well, here are some Questions .. Thoughts .. Opinions and a little ????

Monte 133 April 08, 2020 09:56AM

Opinions, BS, Snake Oil and a little . . "Thanks, but, No Thanks" thumbs up

UtahRich 139 April 08, 2020 10:43PM

Back to you, Rich.

Monte 140 April 09, 2020 05:30AM

- Beyond Missed

UtahRich 140 April 09, 2020 05:01PM

Rich you covered them well, except these two:

Monte 122 April 10, 2020 05:27PM

Re: Nice handful of relics picking through the iron with the Equinox

OregonGregg 137 April 06, 2020 10:20AM

Re: Nice handful of relics picking through the iron with the Equinox

NWCindy 137 April 05, 2020 05:09PM

Great finds, Andrew.thumbs up Was that one of your old military sites?

Monte 154 April 05, 2020 02:06PM

Re: Great finds, Andrew.thumbs up Was that one of your old military sites?

diggindeep 146 April 05, 2020 06:17PM

Re: Great finds, Andrew.thumbs up Was that one of your old military sites?

jmaryt 144 April 05, 2020 02:47PM



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