Is the Goldquest like VLF detectors in that...

[Anonymous]

if you set it to 10uS, even though it results in a loss of stability, it will lose depth? I'm trying to figure-out the best balance between the Reject setting and SAT setting for greatest sensitivity to gold while getting good depth. If it's better to run a couple of notches up on the reject, in order to maintain gold sensitivity, then that would be preferable to losing gold sensitivity while maintaining depth. My impression is that the Goldquest can't be justly compared to other PIs. Everyone's Goldquest experience sharing will be greatly appreciated. Unfortunately, my TH'ing time is rather limited, so I hope to be able to rely on your tried and true experiences.

 

[Anonymous]

Kathy,
Here's how I set up my Goldquest SS. Before I start, I will address the first part of your question in that running at 10uS does not equate to instability in certain ground. An increase in the VOLUME of saltwater will necessitate increasing the REJECT setting. Okay, my settings.....
1. Dry beach sand = REJECT at 10uS and SAT at slow.
2. Wet/saturated beach sand = REJECT at 10uS and SAT at medium.
3. Saltwater to about ankle deep = REJECT at 13uS and SAT at medium.
4. Saltwater from about ankle deep to shoulder deep = REJECT increasing from 13uS to no more than 15uS and SAT at medium to fast.
I always strive to tweak the SAT for stability before reaching for the REJECT setting, bearing in mind the approximate REJECT settings that will be needed for certain conditions described above. Just a small increase in REJECT can knock out some of the smaller/thinner gold rings (yes, the one's with nice diamonds <img src="/metal/html/shocked.gif" border=0 width=15 height=15 alt=":shock"> ), so it's important to first check out if the SAT can smooth out excessive background noise. I always have a small amount of threshold chatter, as I find this helps with the deep, quiet signals, as well as giving me feedback on what the ground is doing and whether settings need changing.
These are the settings I use to track down gold/platinum targets....I'm not bothered with coins but pick them up so I can have a few (too many) cold beers afterwards.
Hope this information helps...the Goldquest is a sensational piece of electronics. Wait until you can breakdown the audio signature for target identification. It doesn't take long to sort out the sounds into about 3 categories of targets.
Good luck.
Tony. <IMG SRC="/metal/html/ausflag.jpg" BORDER=0 width=32 height=17 ALT="au~">
PS These settings are for my beach/water conditions. Concentrations of black sand, and even salt levels could well be different for you.

 

[Anonymous]

Hi Kathy,
My settings here in California may be different from others in different parts of the world. I'll share what works best for my area and it should work the same in yours.
First, Use the SAT first even if it means excising it to he fullest extent. If more stability is needed then reduce the threshold to a faint sound very faint to help eliminate some of the back ground non/target signals, then as a last resort use the Reject/delay but just enough to clam down the detector.
I've been doing comparisons with different reject levels and noticed even at 15uS the GQ will still pickup small conductors, Don't worry about losing the smaller conductors if you have to retard your delay between 13 to 15uS. Most of your gold jewelry will still fall into this range.
Hope this helps,
HH, Paul (Ca)

 

[Anonymous]

Listen to Tony and Paul..lots of knowledge and experience there.
It is my understanding that as long as you keep the threshold at a barely hear it listening point that no matter where you asjust the reject you will keep the same depth...internally it is arranged that way. Asjusting the SAT control "MAY" affect a slight amount of depth loss....Repeat "May." Personally my fooling with the SAT control on very deep targets I do not find that. Find a very deep one, change the SAT control anywhich way you want and you still do not lose the target....
Different parts of the US or the world....conditions of soil are different...all the above could be wrong when in another place...Just change to meet the conditions...
Frank

 

[Anonymous]

Hi Paul
I used SAT at half way at most of my beaches due to the degree of black sand with the advantage of a sharper signal response and better I.D. of rubbish. In some circumstances I might increase it a little but did find that performance was affected if the control was taken up near maximum.

 

[Anonymous]

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[Anonymous]

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[Anonymous]

JT...(<span style="background-color:#ffff00;">definitely not +- 1uS for each notch/mark</span>),
I figure 13uS is an approximate setting, but I'm confident of it being +- 1uS either way.
Eric was able to tell me what the marks corresponded to on the REJECT setting for the batch of Goldquest's that mine was built under. The first mark up from MIN is 11uS and the next mark up (at about the 9o'clock position) is 16uS. I therefore know that 13uS lies about midway between these two positions.
Each mark equates to approximately 5uS, with the very first mark (MIN) being about 10uS, but the second mark only about 11uS, the third mark about 16uS, and so on through to 50uS, fully clockwise. The first few degrees of rotation of the REJECT control doesn't change the setting that much, with only 1uS of change between MIN and the second mark on the REJECT pot. THIS IS FOR MY PARTICULAR MACHINE...but most units should be similar.
I use the 9 o'clock position (16uS) as my reference point, knowing that each rotation to the next mark is +- 5uS.
Tony. <IMG SRC="/metal/html/ausflag.jpg" BORDER=0 width=32 height=17 ALT="au~">