Fast and Deep.

[JBM]

How can the detevctor run fast and deep at the same time without getting confused.

If Mr Minelab advises us to use one or the other that makes sense to me.

But both at the same time Iam mystified.

Your thoughts please.

Jerry.

ps. I prefer deep whenever I can get away with using it as it helps me to reach items over 12" deep without difficulty.

 

[Marti S (CA)]

JBM,

Haven't you learned by now there are two camps divided on this.

Camp # 1 - those that do F & D together

Camp # 2 - those that really know better i.e. just one at a time please......sigh!

Marti S CA

 

[Tinfoil]

n/t

 

[Mike Bearden]

I agree that it's a bit confusing to some new users and for some that have been using the Explorer for years for that matter, but there is no RIGHT or WRONG to this scenario whatsoever.
Set your Explorer back into factory default mode and see what it selects, have you ever tried that little experiment ?
Have you ever ran it with both fast and deep UNCHECKED and made the comparisons, you may have but I doubt the majority have and if they did, could they make sense of it all?
There are just to many variables involved to KNOW what will work for some while others may get entirely different results depending on site conditions etc.
Almost every setting we make can affect several other settings on the Explorer to some degree and it takes YEARS to make sense of it all for most folks and there's nothing wrong with that.
Can't tell you how many newbies I've seen come and go on this forum because they invested their $$$$ into a Explorer but didn't want to invest the time it takes to really understand it's capabilities !
Sure they see all the great finds here and hope that the Explorer is some kind of magic wand of sorts, then they start asking for short cuts that don't exist ... nothing takes the place of experience.
There are places I hunt where Fast & Deep together sounds off on finds that Fast or Deep alone won't and then there are times when both Fast & Deep left unchecked works better for one site over the others. It's all about paying the dues and finding out what works for the individual where they detect.
H.H.
Mike

 

[Captain Kirk]

Marti,

I thought that I had a pretty good handle on both DEEP and FAST. Personally, I feel that these two functions are essentially unrelated and see no reason why they can not be used simultaneously. I have run both simultaneously, but rarely do so because FAST makes the response to "chopped off" for me (regardless of whether or not DEEP is on).

DEEP simply modifies the GAIN curve in a non-linear manner (more gain for the fainter signals without significantly modifying the stronger signals).

FAST simply modifies recovery time from one target to the next to provide somewhat better separation.

Why do you think that one precludes the other?

Glenn

 

[Charles (Upstate NY)]

Here are my thoughts...

Fast results in the machine recovering quicker after passing over a target or null. ML says you sacrifice some target ID accuracy because the machine has less time to sample the signal.

Deep boosts the deeper and/or weaker signals while leaving shallow signals unchanged. ML says the machine may be more unstable in mineralized soil with deep on.

Now we come to the question of whether to use both deep and fast at the same time. First if I'm hunting deep targets near the edge of the machines ability to ID them the last thing I need is to lose target ID accuracy. The target ID at the edge of the machines ability to detect a coin invariably goes to iron before going silent. I have seen this many times in the field where a stock coil will ID a deep target as iron yet a larger coil like the 15 inch WOT will drag the ID back over to the coin side of the screen. Therefore I feel turning fast ON would result in a loss of depth due to the decrease in target ID accuracy.

This is not to suggest that Fast ON doesn't have its place. If a site is littered in trash and iron with Fast ON the machine might very well recover after passing over a nail say, to then hit on a coin next to the nail. Shallow trash and rusty nails cast a large shadow and this can extend over the top of a nearby coin. But here we are talking about a different type of hunting. Hunting in a trash heap not so much for deep coins but for coins hiding next to trash or iron.

I would say as a general rule Deep ON when hunting for deep targets and trash and iron is not too bad, Fast ON when hunting areas with lots of trash and/or iron.

One advantage of running Deep on is that it widens the deep targets as you sweep them and makes them sound fuller. It makes them stick out like a sore thumb compared to shallow signals. What I don't like about Fast ON is that it shortens the signal so that deep targets sound no wider than shallow ones as you sweep them. This makes it much more difficult to pick out the deep targets versus the shallow ones. In many areas I hunt I only want to dig deep targets therefore I will only switch to Fast ON when the trash in really heavy.

Charles

 

[James N.D.]

Using Fast On will also make the Deep targets seem more like a choppy signal and make them seem like they are just Iron falsing or sound like a rusty nail. I use Deep On only most of the time but occasionally will switch it over to Fast On only when detecting thru a lot of Iron and Trash. Thought I would add this to your post and I agree 100% with you an this one Charles.