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F 75 LTD Gold Size Nugget capability????

G

grumpy

New member
Have another question about gold prospecting with the 75 ltd. I have a couple of gold nuggets and some flakes from ak. The flakes total wt. (im my calculating is right) about 8 gm. also have a nugget with quarts and gold about 10 gm and a gold nugget about 12 or 14 gm.
The 75 in most modes will have to almost touch the coil on the quarts and only reaches about 4 inches at best on the larger nugget. Now granted these are both small specimens but they are larger than most found around us. SO is this mean that the 75 is really not a machine to go nugget shooting with. I mean if it will find gold (perfect condition) or if it is actually feasable to use for gold hunting ???? THe machine will pick up the larger nugget (about 1/4 x 3/16" ) in all metal with the sens turned up to about 8 inches but with the sens at mid range your talking only 4 or 5 inches ???
Any tips on the subject for a vry novice beginner. ?
Thanks
Grumpy
 
What coil are you using and what settings are you using?
Check the notching screen. Are you using headphones?

You have small gold there and If it were me, I would recognize the F75 as a a good nugget detector but if there is any iron trash a better one would be the new GB PRO with the big coil. It is perfectly designed to do what you want for where you will go.

The F75 will go deeper on lunkers but it might be a wash compared to the GB Pro. The pro is out doing the F75 on targets, like the guy that found a whole pile of lead rounds that his friend with the F75 could not get a peep on. Those are small targets deep! Not one large target deep, so one large target deep could be detected deeper!!!!! You need a back-up. Take the F75.

If I were to go for gold, the F75 would be my back-up to the GB Pro. Between the two they will pay for themselves. If I only had a GB Pro when I was hunting long ago! I can go back there and it will be like virgin ground. Same goes for all the ground covered by GB2's. Good just got better.

The guys with gold machines like Whites and fishers that are way up there in freq always get small gold in slow sweeps. You just can't beat Dave's newest design. The F75 was as good as it got a few years back and it is killer. Who is worthy to improve the best out there? A: Dave & Co.

Do not despair your F75, it is hitting much better than other similar machines. Any lunker at 20" is yours. I am talking multi- ounce fritters.

I did not see any machine that would put my F75 in the back seat until there were revisions. The GB PRO will back seat the F75 on gold and lead. The relic hunters of state's war artifacts are going GB PRO. What ever they use for lead will slay gold. The F75 won in a big 2009 hunt in first, second and third place.

http://www.fisherlab.com/hobby/finds.htm
http://www.fisherlab.com/hobby/news.htm

Consider that if you were in gold country and the expense of getting there. Would you really want to wonder if you brought the best there was for the job?

For small and large the GB Pro is the way to go.
SJ
 
I rarely post as I get out infrequently. However when the F75 first came out I hit the gold and found it to be a good gold machine, one of the best. Found an ounce and a half or so - the largest 1/2 ounce. I found some small pieces down to maybe 3 grains using all metal and digging all signals which spiked over 20. I am thinking of maybe getting the GB2 or the T2LTd. My question though is: in the gold country the higher frequency gold machines may not go as deep through the higher mineralized ground which the F75 is capable.(I was surprised. On a larger native copper piece of a few ounces, to be able to read it through a 6 inch magnetite cobble - though as I recall this lead to some other issues in the field.) I like the simplicity of the readout menu of the GB2. If anyone has experience of the depth of the GB2 in mineralized ground I would like to hear. Lance
 
18-20 KHZ is a balanced sweet spot for gold. The higher the frequency, the less depth because the mineralization reflects more.

I don
 
One thing to keep in mind the AT Pro does not have a thershold based all-metal mode- Thats what got me looking at the G2 or Goldbug Pro.
There is a differnace between the G2 and the goldbug pro

The G2 has VLF induction balance-The gold bug pro does not:

http://www.thetreasuredepot.com/cgi-bin/tek/tek_config.pl?read=4853

Look at the chart in the link.You can tell the differant functions of each machine very helpfull.
 
I wish I could find some real information on the AT PRO and how it does on gold.OK we all know the groundhog circuit,great depth,but im sure it cannot pick up tiny gold like the higher freq machines,granted it would go deeper.Sure wish a gold detector dude would do some testing on gold size with the AT PRO.I seen the huge nuggets in the video being airtested but those are very rare in british columbia compared to australia.
 
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