Another question please...

[Salida]

Ok. I'm a bit confused. A higher Khz works better for gold nuggets.
The Garret AT Gold operstes at 18 khz, the old Gold Bug at 19 khz, and the GMT at 48khz.
NOW teh New Gold Bug 2 operates at 70 Khz.

Isn't this just over kill?

If a 70 Khz is so great why did't Garrett and the other manufactures do this a
long time ago? Does it cost any more to make a higher Kilihertz machine than a lower one?

It seems to me that at a certain point one is just hype and shere over kill.

Salida

 

[ralph]

My take-- the higher the freq the smaller pieces a machine can see,but the tradeoff can be loss of depth, so each design has it's plus and minuses. The trick is to find which suits you'r hunting area and style. Best bet is ask those who hunt areas you hunt what works best there.

 

[John-Edmonton]

The operating frequency as rule works like this....the the higher frequencies will be more sensitive to the tinier nuggets, but won't get the depth as a lower frequencies. The lower frequencies will get a little better depth, and might be a better choice for larger, deeper gold nuggets.

The scorpion metal detector (not being produced any more) operated at 15 kHz. It was a great detector when ground balanced properly and used by an experienced hunter. It was good on small nuggets and and larger ones also. It was also a killer on gold and silver rings. The AT series chose their operating frequebcies based on the proven success of the 15 kHz ground hog circuitry.

Now to confuse things even more, the operating frequency of a detector is only a piece of the puzzle for hunting targets, especially gold. The additional electronics built into the detector can also increase it's sensitivity and depth to gold, over and beyond it's operating frequency. Combine that with challenges such as mineralization, depth of gold, size of gold, shape of the gold and it's orientation to the coil, and you end up with a challenge for any engineer. The short answer is that both the AT Gold and AT pro should easily find tiny to larger sized nuggets and gold rings. The AT Gold will have the advantage with depth and sensitivity due to it's true all metal mode and with it's adjustable threshold. The AT Gold also in corporates a range (Ground balance window) where the detector can be ground balanced to a range of conditions, maintaining a better depth and sensitivity in any particular area.

The results are in the finds - http://www.findmall.com/read.php?79,1521400,1521400#msg-1521400

Hope this helps.

 

[Salida]

SO then, all this stuff about higher frequency is just a lot of hype to sell more
detectors. It sounds to me like one would be better off with the AT-Pro/AT GOLD and
the Gold Bug's at 19 khz.

 

[darrenb]

Speaking from experience, it is hard to beat the AT for coins or jewelry!