BarnacleBill
New member
I've noticed many posts lately concerning coil selection. The responses have been varied as to the "best" or "most used" coil. The variety of opinions is exactly what should be expected based on the purpose of the X-Terra design platform. By it's nature it was was meant to be personalized without being hamstrung by a general purpose single frequency as ALL other mid-range detectors are. I've seen several posts stating that their preference would not be the 7.5khz stock concentric coil. Stop a moment and think about what all the other manufacturers offer in this price range, answer..... a single frequency that you live with.
The stock coil, which many here seem to view as a compromise is very close in frequency to many recent releases by other manufacturers. It may not be a dedicated hobbyist's first choice that concentrate on a particular aspect of this hobby, but it is a good basic coil that will serve one well in a wide variety of tasks. Keep in mind a very small percentage of detectors purchasers are forum hounds or involved in the hobby as many here are. The stock coil provides a good balance of capability.
Now by example I will lay out why I use what coils I do and why. I am primarily a beach/water hunter with most of my time spent on freshwater. My number one target is gold jewelry! Many years ago I was primarily a park/relic hunter, but I caught gold fever! If I was still involved in that type of hunting then the 3kHz & 7.5kHz would be the coils of primary interest for me. But I've evolved(some may say devolved ) into a wader.
So what is it that the X-Terra offers me a wader? Simple, the higher frequency that is more sensitive to small gold jewelry. And the coils are optimized for that frequency with no compromise, as in non-resonant designs that depend on harmonic response. The second aspect is clean rejection of iron. That is, the ability to set the discrimination to reject iron but still effectively hear small gold.
Are there other detectors operating at a similar high frequency? Yes several, and I did use a Tesoro Tejon for a year because of it's sensitivity to small gold. But in the end the Tejon had an achille's heel, terrible iron rejection. It suffered from such severe iron breakthrough that by the time small rusty nails were effectively rejected, so was all of the small gold. I have very high expectations of discrimination circuits at the iron to foil transition point. If I set a coin detector to reject small iron, I better not hear it, but I do want to hear small bits of foil. I still use a couple of original Fisher detectors which have excellent iron rejection(Excel & Edge) but they can't match the sensitivity of the HF coils with the X-Terra for small gold.
Does any of this mean that I'd not recommend someone else not use the other coils I don't use? Heck no! That's the strength of the platform! It's like ordering food in a Chinese restaurant, one from column A, one from column B, & one from column C.
Within the above context, think about the X305. What's the price point of the other detectors on the market that offer a dual medium and high frequency like the X-Terras? How would the X305 with the 6 inch DD HF coil fare against those "other" detectors in a trashy park? Garrett, FT, Tesoro, White's, be afraid, be very afraid!
HH
BarnacleBill
The stock coil, which many here seem to view as a compromise is very close in frequency to many recent releases by other manufacturers. It may not be a dedicated hobbyist's first choice that concentrate on a particular aspect of this hobby, but it is a good basic coil that will serve one well in a wide variety of tasks. Keep in mind a very small percentage of detectors purchasers are forum hounds or involved in the hobby as many here are. The stock coil provides a good balance of capability.
Now by example I will lay out why I use what coils I do and why. I am primarily a beach/water hunter with most of my time spent on freshwater. My number one target is gold jewelry! Many years ago I was primarily a park/relic hunter, but I caught gold fever! If I was still involved in that type of hunting then the 3kHz & 7.5kHz would be the coils of primary interest for me. But I've evolved(some may say devolved ) into a wader.
So what is it that the X-Terra offers me a wader? Simple, the higher frequency that is more sensitive to small gold jewelry. And the coils are optimized for that frequency with no compromise, as in non-resonant designs that depend on harmonic response. The second aspect is clean rejection of iron. That is, the ability to set the discrimination to reject iron but still effectively hear small gold.
Are there other detectors operating at a similar high frequency? Yes several, and I did use a Tesoro Tejon for a year because of it's sensitivity to small gold. But in the end the Tejon had an achille's heel, terrible iron rejection. It suffered from such severe iron breakthrough that by the time small rusty nails were effectively rejected, so was all of the small gold. I have very high expectations of discrimination circuits at the iron to foil transition point. If I set a coin detector to reject small iron, I better not hear it, but I do want to hear small bits of foil. I still use a couple of original Fisher detectors which have excellent iron rejection(Excel & Edge) but they can't match the sensitivity of the HF coils with the X-Terra for small gold.
Does any of this mean that I'd not recommend someone else not use the other coils I don't use? Heck no! That's the strength of the platform! It's like ordering food in a Chinese restaurant, one from column A, one from column B, & one from column C.
Within the above context, think about the X305. What's the price point of the other detectors on the market that offer a dual medium and high frequency like the X-Terras? How would the X305 with the 6 inch DD HF coil fare against those "other" detectors in a trashy park? Garrett, FT, Tesoro, White's, be afraid, be very afraid!
HH
BarnacleBill