ORX using HF Coil and High Disc(Cherry Picking)

[pine3874]

I have a clad quarter buried at 9" in 4 bar soil that very few detectors can hit. The ORX hits it loud and clear in both default coin programs. Using the HF elliptical coil I set the disc to 88 to knock out zinc pennies and the ORX still hits the quarter. It appears that raising the disc has little to no affect on depth. Has anyone else experienced this?

 

[88junior]

I have noticed that the disc doesn't affect the depth just target seperation seems to be affected with higher disc.

 

[pine3874]

I have noticed that the disc doesn't affect the depth just target seperation seems to be affected with higher disc.

Never heard of disc affecting separation(not saying it doesn't). How were you able to determine that?

 

[88junior]

By hunting a iron infested site cherry picking it using high disc. Then lowering it down to 7 and going back over the same area again and finding multiple coins in the same place that were masked by iron.

 

[bigtim1973]

If you run disc to where it kills out a trash target and the coin is next to the trash item the vid will be off to ID the coin correctly. That is why you found more stuff with lower disc settings when you went back through a second time. I do not use disc and prefer to hear it all.

 

[88junior]

That makes sense Tim. I usually run my disc low all the time now. I like to hear it all as well and it makes me feel like I'm not going to leave anything in the ground.

 

[bigtim1973]

It works for me pretty good. I have hunted one real trashy area and I did manage a few finds that way. I like the ORX better than anything else I have used so far myself. I have the deus too and so far they seem to run about the same. I am no expert on the deus by any means but they both are spectacular units

 

[pine3874]

Good information guys! Looks like I won't be doing any cherry picking with my ORX

 

[Monte]

'Favorite' ... especially for the types of applications I use it for and where it stands out quite well.

Occasionally I'll hunt a beach, mainly freshwater locations, but I'm not a devoted Beach Hunter. And there are times I'll devote some attention to electronic prospecting for gold nuggets, although in all the decades I've enjoyed this sport the largest nuggets I ever detected were an 8 dwt and 5 dwt back in the late '80s, but I'm not a dedicated Gold Nugget Hunter. The bulk of my detecting time is spent Relic Hunting ghost towns, homesteads, pioneer and military encampments, and old, out-of-use dance hall, resort and picnic sites, or working typical urban locations, like tot-lots, parks, schools, yards, etc., when just Coin Hunting.

And when it comes to Coin Hunting, there are two basic practices to take:

#1.. Find ALL possible coins likely to be in an area, which means use the least amount of Discrimination possible, and not even rely on a visual, numeric VDI [size=small](Visual Discrimination Indication)[/size] or Audio Tone ID very much, or at all.

#2.. Use one or more methods for Selective Discrimination. Those could include increasing a variable Discrimination level to reject most unwanted target conductivities, or a Notch-type Discrimination to allow some mid-range target acceptance, and it can also be relying on an Audio Tone ID response, or referring to a VDI response and then visually ignoring targets at or within a certain numeric conductivity range. Just trying to ignore the recovery time and effort for non-desired targets and only recovering those that are most likely in an acceptable or common Coin range.

I have been enjoying this great sport for over 54 years and have only relied on the #1 Coin Hunting method. Why? Because the more a person rejects or tries to be very 'Selective' at recoveries, the more they are going to be missing out on a lot of desired coins which is what they are essentially after.

I have a clad quarter buried at 9" in 4 bar soil that very few detectors can hit.

My ORX & 5X9½ HF DD coil make a terrific combination and in a wide range of mineralized environments, I have found it to provide exceptional depth-of-detection. Keep in mind I seldom select a Discriminate setting higher than '7' and I also seldom turn Iron Reject Volume 'OFF', either. I prefer to hear just as much as I can based upon how a detector designed their Discrimination circuitry, then I also rely first on the audio report before making a glance at the visual TID response. With my ORX and elliptical HF coil I usually get very impressive depth and better-than-average numeric VDI responses on mid-depth to deeper readable targets. At least with my settings and functional coil control, referring to smaller-size, non-ferrous targets like you describe.

The ORX hits it loud and clear in both default coin programs.

No argument, the ORX easily fit right in with my other two primary-use Relic Hunting units, and it does okay, too, for urban Coin Hunting applications, although that's not one of my main-use Coin Hunting tools. Both the default Coin programs work pretty well, but I determined in the first couple of weeks I had it this past June that I wasn't comfortable with the default settings for all the 'average' sites I hunt. I'll work on settings to maker a second custom program, but for now I am doing very well with my default / saved turn-on #5 User Coin settings for almost all the places I search.

Using the HF elliptical coil I set the disc to 88 to knock out zinc pennies and the ORX still hits the quarter.

To me, that's not really "Cherry Picking" because I group those folks as using more of a Notch Disc. approach to try and also accept Nickel coins and even some ranges of gold jewelry. Using a Disc, setting of '88' is quite high and instead of trying to pick al typical coin ranges, you're simply just going after all the coins that are higher-conductors than the modern Zinc Cents. Well, I guess that term is now outdates as well since they really aren't just a 'modern' coin any longer. They came out in '82 so they are now in their 38th year of mintage and over a third-of-a-century kind of moves them out of 'modern' to just 'current.'

So, if you have Iron Audio [size=small](a poorly named term, as is "Discrimination" as applied to the ORX)[/size] turned 'Off' then you no longer have a 3-Tone mode of operation, and I'd have to check to see if you still hear the mid-tone. And if the Volume is 'On' you're going to be listening to a LOT of low iron audio responses that could be annoying.

It appears that raising the disc has little to no affect on depth. Has anyone else experienced this?

IF you raise the Discrimination and have the Iron Audio Volume 'ON' then you shouldn't have a problem hearing everything pretty much to the full depth potential. However, as some others have mentioned, you can loose some targets with a conductivity that is near to the Discrimination break-point, especially if they are a deeper and/or weaker response, or maybe the desired targets is canted or at an orientation or proximity that renders a slightly lower-than-ideal VDI response.

Never heard of disc affecting separation(not saying it doesn't). How were you able to determine that?

Now you entered the term 'SEPARATION' into the discussion. Doing so brings in evaluating just how well a particular make/model detector, coupled with a particular search coil size, shape and type, can separate two or more nearby targets that are both ACCEPTED targets [size=small](like two non-ferrous coins that are close)[/size], as well as how well the combination can or can't handle two nearby targets with one being ACCETED and the other REJECTED [size=small](like a non-ferrous coin and a rejected iron nails positioned equally as close)[/size]. Trust me, not all detectors are engineered to perform the same or even close to similar.

This is one reason why I like the ORX performance with the only coil I use with it because it handled really tough conditions very well and that makes it perform well when I need it for separating some troubling junk from a nearby, partially-masked desired target. It separates the trash I hear from the non-trash I hear and am searching for. But, as I've mentioned, I do more Relic Hunting it very challenging iron contaminated sites, and most urban Coin Hunting conditions do not present the same kind of challenges as I take on when Relic Hunting the very infested debris locations.

Good information guys! Looks like I won't be doing any cherry picking with my ORX.

Nope, not if your desire is to use a more common 'Cherry Picking' approach to finding coins in common areas. I have other detectors for that that work differently and can handle things pretty well. Besides, if you're trying to 'cherry pick' keepers out of a more littered environment, you can forget abaout finding a 9" Quarter because that's too deep to locate if you have a lot of shallower trash, in the surface to 4" range, which would cause too much masking of good targets that are too close and especially anything that is deeper.

Just my experiences.

Monte

 

[MikeLab]

Be careful about using too much discrimination in hot soil.