Learning the Impact

[Mudwhale]

To Mudwhale.I have been using the Impact for nearly 2 months on Victoria,s Golden Triangle,Australia.I made it very clear I was using it on very high mineralisation.We also have small and large patches of extreme mineralisation where most detectors fail unless they have a COG mode like the Impact.Here ID numbers jump around like nobody,s business due to the mineralisation and I do not find them very useful.The discrimination modes are also unreliable as they can give lots of false signals unless you are in low mineralisation.I use the machine in GEN mode at 20 khz.looking for gold nuggets.I set the discrimination setting from the default 00 to 01 so I can get a low tone for hot rocks and iron and a high tone for non ferrous.I go by tone alone and the excellent tonal quality of the Impact is its trump card.You are using the Impact for what 90 percent of buyers do ,looking for coins and relics. It is however so versatile it can also be used for gold prospecting in Australia.I have posted information on most detecting forums trying to inform people how stable the Impact is in very high mineralisation but it seems to have fallen on deaf ears.

I'd be curious to see your settings for gold prospecting, and some of your finds.

We watched an episode of an Australian gold hunting program with a bunch of groups that gold prospected all over, and 90% of the targets were 6" or less and the gold is decent size, most nuggets were 1gm or larger from what they showed on the program.

I tested this a bit based on some things I read. I have 2 little nuggets. One is 1/10th gram and the other 1/20th gram. We are talking tiny. From what I read and tried was to de-stabilize the ground balance of a machine. First do a ground balance and test on targets. Next manual gb from there to a ridiculously low number while scanning the gold target/s. They will POP when you hit this magic number. Now it's a gold machine. It works!

 

[Mudwhale]

To Mudwhale.I have been using the Impact for nearly 2 months on Victoria,s Golden Triangle,Australia.I made it very clear I was using it on very high mineralisation.We also have small and large patches of extreme mineralisation where most detectors fail unless they have a COG mode like the Impact.Here ID numbers jump around like nobody,s business due to the mineralisation and I do not find them very useful.The discrimination modes are also unreliable as they can give lots of false signals unless you are in low mineralisation.I use the machine in GEN mode at 20 khz.looking for gold nuggets.I set the discrimination setting from the default 00 to 01 so I can get a low tone for hot rocks and iron and a high tone for non ferrous.I go by tone alone and the excellent tonal quality of the Impact is its trump card.You are using the Impact for what 90 percent of buyers do ,looking for coins and relics. It is however so versatile it can also be used for gold prospecting in Australia.I have posted information on most detecting forums trying to inform people how stable the Impact is in very high mineralisation but it seems to have fallen on deaf ears.

Great post sir!! Try this:

As I posted above, do a ground balance in COG mode. This mode will GB anywhere because the scale has been shifted from normal, 20-90 to 0-90. Once you have a number you can manually shift it up or down depending on your soil. Do this while scanning a small gold object until you here it really POP! You may have to go up or you may have to go down. Down is the first place to try. De Stabilizing the ground will make the machine a lot noisier. This is good for gold because anything low conductor now will be banged. Try it and post back.

 

[cjc]

One of the best "ears" machines I've used.
cjc

 

[cjc]

I stared experimenting with the Gen mode at 20 kHz too and was very surprised at the size of targets that were coming in--very loud--more so with the boost. This is a very versatile detector
cjc

 

[cjc]

Ya, this is a big strength--especially for those of us who hunt a for good and silver. In the Disc modes the reporting is very clean and has a strong bias towards clean, single metals.
cjc