Omega At Lowest Disc Setting

[Ronk]

I read that the Omega at its lowest disc setting is still not a True All Metal Accept.If it doesn't accept All metals in the Disc at the lowest CCW,Does that mean that it's not like a ED-180 on other brands? What Will it accept on the lowest disc CCW? Also will it still handle High minerals at the lowest setting?

RonK

 

[Monte]

I knew when I made the statement a few times about the bottom-end Disc. levels this would come up. And you, with the detector I sold you a few years ago, have just the unit to so compare them.

I read that the Omega at its lowest disc setting is still not a True All Metal Accept.

That is correct. At the minimum Disc. setting, and Teknetics uses the numeric reference of '1', the Omega (and Gamma) are at a very low rejection level and, in most typical applications they will respond to most targets (ferrous or non-ferrous) in favorable ground conditions.

If it doesn't accept All metals in the Disc at the lowest CCW, ...

It will get most ferrous and non-ferrous targets, if you simply "air test" them ...

... Does that mean that it's not like a ED-180 on other brands?

That would be correct. For those not familiar with the term "ED-180", it is a description that was coined by jack Gifford of Tesoro Electronics when he was describing the full-range of acceptance (lack of rejection you might say) of some of their models. They also had the "ED-120" which helps describe the Expanded Discrimination (thus 'ED') when they designed for a lower minimum setting in 1990 when they brought out their Tesoro Bandido and models that followed.

Earlier models from them, and many of the competitors, had more rejection at the minimum Disc. setting and that made them reject some very small gold jewelry and also cut in on their ability to better handle some bad-target challenges, such as masking by nearby iron junk, such as a close nail.

With the Omega and Gamma, while they do adjust quite low and lower than many competitive models, they lack a full-range of acceptance (the 'ED-180' reference) that will let them still hit on a metal target that is "masked" by a thin, flat rock, a dirt clod or very mineralized ground like some pea gravel or nasty black sand like we have on some of our river beaches around here in NW Oreogn.

What Will it accept on the lowest disc CCW?

Virtually all non-ferrous targets and the majority of the iron targets you are likely to encounter. If you're hunting in D2 Tone ID, for example, you will hear the low bass-like audio from most iron, and the higher pitched tone form non-ferrous targets. Even smaller iron will usually respond ... as long as the ground conditions are not too severe.

Also will it still handle High minerals at the lowest setting?

It will handle most mineralization, but like all two-filter type models you have to make sure you do not use a too-fast sweep speed in higher mineralization or you won't get good performance.

Now, if you are asking about "high mineralization,' or anything that I refer to as "an intense mineral body", then there are very few makes and models on the market that can deal with those challenges. My youngest son, who is my web guy, and i are working to put together several side-by-side comparisons of many of the more popular makes and models available to day, along with a few of my favorite older discontinued models. These will include the following "high mineral" or "masking mineral" challenges we all might face.:

1.. I use my "Homestead Rock" from a Central Oregon homestead. It is about 6"by 9" and about 2" think at the thickest point. It's basically a nice, flattish rock that pioneers used to build the walls of a house or build a chimney, etc. When the old structure decays and falls apart, the ground has a scattering of these types of rocks. I enjoy metal detecting and finding stuff, but not picking up and moving every rock. Not at my age and in crummy health! Nope, instead, I like to sweep the area and sweep over every rock and listen for ANY audio response. I then move THAT rock and re-scan then recover the target.

This is one example of an "intense Mineral Body' and many detectors will not detect an Indian Head 1

 

[Ronk]

See, now we're going to start one of those 'argue-it' posts. "No arguments from ME Monte!" I guess it seems that different detector designers each have their own opinion or ideas what All Metal Accept is at the min disc.I understand what you said about what makes one unit a True All Metal Acceptance at the min disc setting. I guess I was concerned about the O8 not having the full range that the Black Sand position gives me on my C3SL. I'm not going to hold that against the Omega! From what I have been reading it's a Great Coin & Relic detector! Running my Classic in the Black Sand range at min disc sure has me spoiled! To Me,the Full Range Acceptance on the C3SL IS a Bell or Whistle for That detector! I'll be looking forward to hearing or seeing the results of the comparisons that You and your youngest son will be putting together! Those kind of things are always interesting to me! I'll have to do some more experimenting with an Indian Head penny myself. I did the Nail Board Performance test with my Classic with the small 5.5 coil and it worked Great but I haven't used a bigger coil for the test.Of course that might defeat the purpose in way because I mostly use small coils anyway.I don't see how the 9.5 coil would do much good on That test.
I started to watch some of the video clips on the AHRP site but was having trouble with the video stalling out for some reason.Probably something in my computer,maybe graphic card setting or something similar. Thanks for explaining the All Metal Acceptance in the disc mode! Oh..One more question...Does the G2/GB need a slightly faster sweep speed or did I read the post wrong?

RonK

 

[Monte]

A.. Ron, my comments about an "argue-it" post wasn't directed toward your interpretation but for many day-to-day forum readers. Many just don't know what we are referring to sometimes.

B.. The 'sample' tests on the AHRPS site don't work correctly. It's an issue with the server and not your computer. He's been out-of-town and was due back home (in Utah) late last night. I'm going to have him remove those until we can get them worked out and re-done. I have a master copy of them on a DVD that I reviewed to figure out what we'll do different when we re-shoot a complete set.

My intention is to have more detectors involved in the sample tests, and to use both the stock detector coil as well as a popular smaller-than-stock coil. All we used, initially, were one Tesoro Silver