Threshold Question

[Anonymous]

Recently became the proud owner a Gold Quest. On my first time out after getting over the culture shock of very little information through the head phones compared to a VLF, I did manage a few 303 bulets up to 10 inches down. What I didn't manage was a stable threshold.On my second attempt I moved the reject to 8 O'clock the SAT to fast and the threshold was definately better but certainly not rock solid.
I have read some of the past post recommending turning the threshold on silent and the reject right back to off. What effect on sensitivity and depth is this having?
PS I was hunting on black sand on the gower coast near Swansea

 

[Anonymous]

Jack have detected on Swansea bay last week ,the sand is very black almost no real clean sand ,from what ive been told the bay is very ancient and from the 19thcentury,has been used constantly a lot of iron in the ground, there is a part that was a forest many thousands of years ago, and i belive also a railline was used along the edge of the bay, perhaps this is giving you a poor threashold Iuse mine with very little if any threshold in a lot of places where there is black sand . all the best JM

 

[Anonymous]

In past I found that threshold Questions are a No-No,question.
I dont own a Gold Quest.
I recommend that you experment with Gold Quest.take a US nickel cut in half, put half in velco tie string to it and use it as a test nugget.
Set threshold where it works best for you.
Frank.

 

[Anonymous]

Jack (my personal thoughts on the matter),
Unlike a lot of other PI detector's on the market, which have their thresholds "artificially smoothed out", the Goldquest's sensitivity and depth is a result of it's "lively" threshold audio.
Those other PI's <img src="/metal/html/tongue.gif" border=0 width=15 height=15 alt=":b"> , with their "rock solid" thresholds may give an initial impression of being nicely balanced and stable, but in reality, they are failing to provide the operator with all of what is happening beneath the searchcoil, in terms of ground conditions and potentially very deep gold targets.
I am still reluctant to set the REJECT higher than 9'oclock (15uS), in any ground conditions, as this is the area that can knock out the finer gold rings. For me, if a fast SAT and 15uS can't operate in certain bad ground, then increasing the REJECT is not an option for me. You can still rest easy, that even in these conditions, most targets will be clearly distinguishable over any threshold.
In time, you will soon be aware that the Goldquest audio is far more descriptive than you might currently believe. That "lively" Goldquest audio is constantly talking to you and providing you with a great deal of information.
Have fun,
Tony. <IMG SRC="/metal/html/ausflag.jpg" BORDER=0 width=32 height=17 ALT="au~">

 

[Anonymous]

Hi Jack
I regularly work all the Gower beaches in rotation and the norm is that the SAT is best set at or just past the 12 o'clock mark which may loose you a fraction of depth on clean beaches but not where you are. This position also narrows the target down a little which allows better I.D. of ferrous.
As J.M. says most of the beaches stripped some time ago and have had a hammering. When the sand comes back the threshold noise will allow you to hear the hardpack black sand as the beach turns into a flat featureless expanse.
Threshold can be reduced, at a loss of depth, so I would not run silent but on the other hand if you run it to loud you will end up missing the good weaker signals due to the ear battering.

 

[Anonymous]

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