GPX-4000
I have four aftermarket coils and recently began using a 14 inch elliptical NF monoloop. I've gotten pretty good at understanding what the tones indicate - great coil. A few days ago I tried out a 10X5 elliptical Nugget Finder coil I've had for a while and never used. This was a shallow to bedrock area; I dug a couple of square nails and then got another screaming signal which I figured to be yet another nail. After digging down 6-8 inches I came up with a 1/4 gram nugget. An hour or so later and after a few lead shot and a .22 casing I got another screaming signal. Yep, another nugget about 1/2 gram this time at about 10-12 inches.
I am fairly experienced with VLF machines and have gotten used to using small elliptical coils which are available for the X-Terra 70 and Eureka Gold. I've been using this GPX for only a couple of months and thought it necessary to use big coils to get any depth. Not true; so far as I can see the 10X5 will punch at least 10-12 inches deep. The biggest difference I see with this little coil is: 1. It requires more sweeps to cover a given distance - that's obvious. 2. The coil is very, very sensitive to small targets 3. It takes some getting used to the new tones a target produces. I call this coil - "the Screamer"
I post this just to say I've learned to test out each of my coils before considering what a tone indicates - I of course dig them all, just to see what each tone tells me (material, depth, size, etc.). But, now I'm learning what each coil does as well as what a tone tells me. Just my way of saying make sure to try all your coils and keep the information cataloged for future use.
Happy hunting,
Bill
I have four aftermarket coils and recently began using a 14 inch elliptical NF monoloop. I've gotten pretty good at understanding what the tones indicate - great coil. A few days ago I tried out a 10X5 elliptical Nugget Finder coil I've had for a while and never used. This was a shallow to bedrock area; I dug a couple of square nails and then got another screaming signal which I figured to be yet another nail. After digging down 6-8 inches I came up with a 1/4 gram nugget. An hour or so later and after a few lead shot and a .22 casing I got another screaming signal. Yep, another nugget about 1/2 gram this time at about 10-12 inches.
I am fairly experienced with VLF machines and have gotten used to using small elliptical coils which are available for the X-Terra 70 and Eureka Gold. I've been using this GPX for only a couple of months and thought it necessary to use big coils to get any depth. Not true; so far as I can see the 10X5 will punch at least 10-12 inches deep. The biggest difference I see with this little coil is: 1. It requires more sweeps to cover a given distance - that's obvious. 2. The coil is very, very sensitive to small targets 3. It takes some getting used to the new tones a target produces. I call this coil - "the Screamer"
I post this just to say I've learned to test out each of my coils before considering what a tone indicates - I of course dig them all, just to see what each tone tells me (material, depth, size, etc.). But, now I'm learning what each coil does as well as what a tone tells me. Just my way of saying make sure to try all your coils and keep the information cataloged for future use.
Happy hunting,
Bill