Must see video for all notch users!

[Calabash Digger]

I say ground notch by mistake a few times but this video has no ground notch applied and only deals with the notch feature that a lot of folks like to use. This is a must see for all those folks.

 

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[Tedyoh]

I never used the taught / written lessons of "notching out the high VDI numbers to avoid iron wrap around" - an experienced Dues user will know what iron wrap around / overload will sound like......yet another good "myth busters" video....

 

[Calabash Digger]

Another thing some will say I only open it up to 98-99 it doesn't matter notice the numbers with the id norm off and in 7 kh. One more IMPORTANT thing to remember if say you have it opened tom 98 and a target rings in at 97 its gonna make it sound like junk and notice the signal of the 5 inch merc in iron it all but killed it too. So a target that rings close to the notch window is gonna be affected by the notch setting and all it has to be is close to it.

 

[Tedyoh]

Yes indeed.....i see the moral of your story (videos) is as relic hunters we need to keep it simple....use full tones and forget about notching and tone breaks and all that fluff stuff for cherry pickers.

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[Tedyoh]

I also must say, you could rewrite "The Book" if you wanted to, seriously....

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[Calabash Digger]

yeah but some cherry pickers think they are getting it all and these test showed that logic to be very flawed!

 

[Tedyoh]

You don't have to tell me!

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[toasted]

Ive always thought that anyone using a 97-99 iron wrap around notch is missing a lot of deep high conductors at least I know this for a fact when using 18khz(id norm). Anyone digging a lot of iron with the Dues also does not understand what they are hearing at least as far as full tones zero disc goes. I actually seem to dig more iron if I use even a little bit of discrimination

 

[Calabash Digger]

I showed this over on the other forum and the first thing the guy did was smack me in the face with a Sabichs post about this only being a problem with 17 kh ,notice the first test 7 kh with id norm off. Proof is in the pudding.

 

[Tedyoh]

I showed this over on the other forum and the first thing the guy did was smack me in the face with a Sabichs post about this only being a problem with 17 kh ,notice the first test 7 kh with id norm off. Proof is in the pudding.

Yeah you will have no luck over there at that forum.....for obvious reasons..

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[Jeff H]

You are preaching to the choir with me Calabash. Notch = Discrimination. TDI's (especially on deep targets) are not always accurate. I don't use Notch. Maybe there is a use for it but you had better understand what it can do.

 

[Tedyoh]

You are preaching to the choir with me Calabash. Notch = Discrimination. TDI's (especially on deep targets) are not always accurate. I don't use Notch. Maybe there is a use for it but you had better understand what it can do.

N=D.....not really.....notch just blocks a tone from being emmited from the speaker or headphones where discrimination actually tells the coil not to even send or process the discriminated value at all, meaning the coil ignores iron, or whatever number you have it set to.....where notch just blocks the tone at the set value, say 25-32 for foil....the coil will see the foil, as the horseshoe will light up, just not produce a tone for it. With disc applied the horseshoe will not light up... This is how I understand it anyway

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[HuntinDog]

Your Videos are always informative.
Use and apply them as you like... to each their own.
I've been a Deus user for 4+ years and except for the first year or so I've used full tones, 0 Disc and 0 Notch.
Learn the tones and all else is gravy.

Thank you CD for the Videos

 

[Calabash Digger]

For some reason notch seems to distort the signals especially the ones that come close to the notch window . I have been experimenting with a disc of 6 on some my iron infested foundations and really like and haven't found a downside in the test garden to it YET.

 

[Jeff H]

N=D.....not really.....notch just blocks a tone from being emmited from the speaker or headphones where discrimination actually tells the coil not to even send or process the discriminated value at all, meaning the coil ignores iron, or whatever number you have it set to.....where notch just blocks the tone at the set value, say 25-32 for foil....the coil will see the foil, as the horseshoe will light up, just not produce a tone for it. With disc applied the horseshoe will not light up... This is how I understand it anyway

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Notch has to be the most misunderstood function EVER. You could be right Tedyoh. I actually hope you are right because I like your explanation. I have been told by XP support directly from the factory in France a couple years back that is was the same as Discrim. It's just a block of Discrim that you can insert anywhere on the scale. Could have been a language issue It just amazes me there is so much conflicting opinion on this. I don't have a use for Notch at present. But it would be nice to definitively understand what it is.

 

[Tedyoh]

Well I'm not 100% correct....i just ran the machine with Disc set at 10 and the horseshoe still "saw" the square nail, so the coil is still processing Disced out metal and sending info to the controler. I do still believe it is different than notch though. I'll do a depth test running the disc. up to 35 vs. notching 32 to 37.

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[vferrari]

You're close enough, though. Disc applies some level of signal processing/filtering depending on the "strength" of disc applied which is set by the user based on the TID range. It is for this reason that setting disc above 15 or 20 will affect overall depth performance of the Deus. Notch is a pure audio blanking circuit and does not affect how the Deus processes the target signal. I am definitely a proponent of no disc and no notch. I let my crazy brain do the discriminating based on full tones sound quality/distortion and glancing at target ID and the horseshoe for depth.