Excal 2 Threshold question

[lawsonland]

Hi,
I know you are supposed set the threshold to as low as possible. You want to hear a very faint sound and a slight change can mean it past over something.
The manual even states set it too high or too low you lose the faint signals. It has to be just right.

When the excal goes over iron, it nulls then returns with the beautiful door buzzer

My questions why does it always return with threshold so loud? If you can, I don't know how you could, leave that as the new threshold would you not be losing the ability to notice deep items?

I use my scoop to return it to the "original" threshold which is much lower.

How do you know what is too high to too low for the threshold?

So I turn on my unit and set the threshold, If it goes over iron and the new (terrible) threshold is set loud and I turn it down and keep that as my new level.
If I scan my scoop and return to the original "good" threshold sound I can no longer hear the threshold.

Hopefully I explain this right - thanks

 

[foiled again tab hunter]

n/t

 

[GeorgeinSC]

The threshold on the Excal II and the Sovereign GT will give the tone of the last target that the coil passed over. There is no need to "Reset" the threshold. It will return to the good tones when you pass over a good target. Some guys can tell by the threshold change when the coil passes over a good target even when it is not strong enough for the machine to produce a tone. My hearing is lousy and I can not make that distinction.,

 

[tvr]

Here is the previous thread; if you don't read the entire thread, I'd suggest at least reading dewcon's post in the thread:
http://www.findmall.com/read.php?21,1964830,1964830#msg-1964830

 

[deepdiger60]

I have to agree with everyone i been using Sovereign,s 5 years now i hunt a lot of old farm field,s loaded with iron i always start out with a just audible threshold and of course my first target is iron the Sov. will null and the threshold will get louder just keep swinging a slow sweep as soon as you pass over a good target like silver or copper you will hear it even gold rings . Most of my hunting is in the disc. mode but you can use all metal with a good pair of phones and then check the target in disc. and see the 180 target meter number . HH Jim

 

[Rick(ND)]

My hearing is really bad and use the most powerful hearing aid, but can't used them when I use headphone, so I want the headphones with the best volume. I can hear the tone changes of those weak and deep signal many don't hear and walk over them. In most cases a good target may not be that deep and like most area it is nulling and coming back with what I call the low tone growl which is a bit louder than the threshold of a better target. These are easy to hear unless you swing the coil too fast as chances are there is more iron around so you will not hear the tone changes. Now the real deep targets you do have to go real slow to hear the tone changes as they will be small, but you can hear them if going slow enough.
Headphones is very important to us with bad hearing so I had to try many different ones to find the best volume and found that the original Timberwolfs did the best for me on the Sovereigns, but not on my Explorers or E-tracs, but these are no longer being made, so the search was on again and found some made by Detector Pro for a dealer that wanted headphone with good volume for us that are very hard of hearing, these are the Bushmasters which seems to work good on my Sovereigns and the Explorers/ETracs. and found the Detector Pros Uni probe works good one my other detectors I like to have a probe for like my CTX 3030.
If you have a GT and in a area with a lot of iron you can set the silent search so you will not hear as much of that low tone growl of iron when the threshold come back, but there is where it will be very hard with silent search, so I only use it where I really need to and switch back to a threshold I feel has some deeper finds in it.
Even with bad hearing if you have some experience with the Sovereigns and a good set of headphones and go slow enough for the conditions you should be able to hear those sight tone changes.


Rick

 

[lawsonland]

Thanks,
read the other post, didn't see it.

I still don't understand why it would come back with a higher threshold goig over iron and back to "normal" if going over a "good" target.

If the iron tone threshold stayed at the same volume I would probably leave it back when that god awful sound comes back louder I have to reset it.

Who in their right mind would design it that way and choose that sound.

 

[dewcon4414]

Its called pitch hold.....have you ever taken a hearing test? Those tones change based on pitch.....some loud some not. U get used to it so don't waste your time resetting it it won't miss a target and after awhile you will have a real good idea what u just passed over. The Xcal ids iron pretty darn well so if u get any kind of pitch change u recheck the target. I dig most everything but a shallow bottle cap.

Dew

 

[Buried Crap NJ]

I'll add. Its not made by Ron Popiel..... set it and forget it. The threshold will need constant attention during a several hour hunt. Clive Clynick when asked how long does it take to tune your Excalibur....answered in a 6hr hunt certainly no longer than 6hrs.You will be moving over constantly changing sand and hardness wetness of sand. Clive Clynick writes in many of his books on the Excalibur set the lowest threshold and then nock it back 2 or three times more and you'll be in the ball park.
One of the best improvements once can make is a better set of headphones. Baring a warranty issue make sure you get them tight and or change the ear pieces with gel cells. It really amazing how much you miss with out a good threshold and the time spend in the first hour makes or brakes your day. Its not those loud bangs dreams are made of....any detector finds coins.
BCNJ