Just Curious,,,All Metal or Discrimination

[Waterman]

My X-70 has yet to arrive in the mail and I am curious about what the advantages of running the X-70 in All Metal over discrimination are? Is it increased depth, better ID of coins, rings on edge or quicker response time to close targets? Maybe there are other reasons I should be aware of? Thanks for any input! Hopefully my X-70 arrives in the next day or two.

 

[Monte]

Traditionally, the term "All Metal" has been used to reference a threshold based, ground balanced mode that doesn't require any coil motion to filter ground and target signals.

Traditionally, the term "Discrimination" has been used to reference an operating mode that requires search coil movement to read and process both the ground signal and target signal, then filter the ground signal and any discriminated (rejected) targets, passing along only the desired higher-conductive target signals.

Most makes and models operating the a motion Discriminate mode still had some amount of rejection at their minimum setting. Maybe iron nail rejection, or perhaps even higher to reject small foil when at the minimum Disc. setting.

Some makes and model have been designed that allow a broader low-end adjustment so that in the motion discriminate mode there was no target rejection. When hunting in this very low setting the detectors would respond to ALL METALS even though they are still operating in the motion Discriminate mode, they just are not rejecting ferrous or low-conductive non-ferrous targets. We refer to operating at this low discriminate setting as a Motion All Metal mode.

The X-Terra series, basically, provides us with a "shot-cut button" to quickly switch between a target-rejecting motion Disc. mode (Patter they call it) or a zero rejection, all-metal accept motion Disc. mode .... affectionately called All Metal.

It is not a more conventional All Metal mode, like the Prospecting mode of the X-Terra 70, but a good non-rejecting Discriminate mode which response to metals, both ferrous and non-ferrous.

"Is it increased depth, better ID of coins, rings on edge or quicker response time to close targets?"...

Honestly, yes, there can be when using minimal or no rejection. Conditions and operating speed and coil choice come into play here, too.

"Maybe there are other reasons I should be aware of?".. There are, and you'll learn them better once you start to use your X-Terra 70 a filed!

Enjoy!

Monte

 

[NH Bob]

Indubitably

 

[jeff & Maria]

Just to get a bit used to the machine. But switching to all metal in my opinion is the way to go. Myself, NH Bob and others here feel it's best to hear it all and then decide what to dig. It gets a bit noisey at times but I use my Explorer at -16 all metal also so I am used to it, plus being married I am used to the constant chatter in my ears. LOL The nice thing about the X terra is you can be from "all metal" to a discriminative mode and back with just a push of a button on the control box. The X terra is a very powerful and versitile machine, you will love it! There are a lot of great guys on this forum to help also.

 

[Waterman]

Thankyou for the replies everybody, I'm looking forward to trying the X-70 soon.

 

[Digger]

The all metal mode may not be true "all metal". But it is close enough for me. I think of it as a zero discrimination mode, preset at the factory, and activated by pressing the "All Metal" button. Since I think of it as just another Pattern with all notch segments accepted, (and carrying the "All Metal" label), I don't believe it will go any deeper than the 3 Pattern modes. And, I don't believe it will respond quicker or provide a more accurate TID either. But it provides me with lots of information that make my hunts more successful. I hunt in all metal most of the time. By doing so, I can hear the nails in the ground where the old stage stop once stood. I can find the nails that are left from where they burned down the grandstands of the old fairgrounds. I can hear the "man made" trash when I am in close proximity of the ticket stand at the old drive-in theater. I could hunt in a Pattern mode that would reject all of these items. And, I wouldn't hear a thing. But it would take me a lot longer to find the hot spots in the types of places I like to hunt. When I find these "hot spots" I keep in all metal so I can hear the subtle breaking points of when a coin is adjacent to a piece of iron. Until we get a smaller coil, some of them will remain masked. But even with the 9-inch concentric coils, you can do a lot of target separation with the all metal mode and varying the sweep (speed, direction, height) of the coil. JMHO
HH Randy