Mike Hillis
Well-known member
This ties into the 3b iron trash post, but I decided to seperate the email content into two different posts.
quote
Mike, I just now got my hands on a T2 (not as easy as you might think) and took it into the vacant lot across the street to play bottlecap games. Settings: Sensitivity=99, GC=86, Disc=10. The ground is about .1 %Fe2o3, but for a target on the surface that's not an issue.
Here's what I observed.
1. With the bottlecap lying flat, and with the searchcoil within 3 inches of the surface, both modes wanted to give the high tone consistently. I tried fast and slow sweeps, tilting the coil, etc.: none of those things helped enough to be decisive.
2. In both modes, raising the searchcoil beyond a height of 3 inches, it started to give medium and low tones on some hits. The 3b mode seemed slightly better.
3. With the bottlecap laying at an angle about 15 degrees from horizontal, and sweeping 1-4 inches above the bottlecap, the 3 mode exhibited some inconsistency in tones, and audio clipping of the discriminator, but with most passes both ways being predominantly high tone. The 3b mode still gave frequent high tones in one direction, but almost never in the other direction, and the discriminator occasionally knocked it out entirely.
The foregoing is consistent with what we have seen here on previous occasions.
unquote.
quote
Mike, I just now got my hands on a T2 (not as easy as you might think) and took it into the vacant lot across the street to play bottlecap games. Settings: Sensitivity=99, GC=86, Disc=10. The ground is about .1 %Fe2o3, but for a target on the surface that's not an issue.
Here's what I observed.
1. With the bottlecap lying flat, and with the searchcoil within 3 inches of the surface, both modes wanted to give the high tone consistently. I tried fast and slow sweeps, tilting the coil, etc.: none of those things helped enough to be decisive.
2. In both modes, raising the searchcoil beyond a height of 3 inches, it started to give medium and low tones on some hits. The 3b mode seemed slightly better.
3. With the bottlecap laying at an angle about 15 degrees from horizontal, and sweeping 1-4 inches above the bottlecap, the 3 mode exhibited some inconsistency in tones, and audio clipping of the discriminator, but with most passes both ways being predominantly high tone. The 3b mode still gave frequent high tones in one direction, but almost never in the other direction, and the discriminator occasionally knocked it out entirely.
The foregoing is consistent with what we have seen here on previous occasions.
unquote.