TID's of rings will vary with K, alloy, size, shape, angle they are buried and whether or not the band is intact. Regardless, there have been some requests for TID infomation on gold rings, so I scanned a few tonight, using the stock coil, open screen and NO GB.
Note that I scanned them each in all four Separation modes, with very little variance in TID readings between each mode. The only exception is the ring in the upper left corner that, when I dug it, I found it had a 1909 penny stuck inside, which is still there. Here are two shots of the same rings, so you can get a better idea of the size and shape. TID numbers and K are listed for each.
[attachment 238173 afewgoldringTIDs.JPG] [attachment 238174 aerialviewofrings.JPG]
Since posting these pictures, Porschephile has posted a 14K white gold band that registered 12/01 in Ferrous Coin Separation mode. [attachment 240137 whitegold.jpg]
and Buried Crap NJ has also allowed us to share a link to his post of rings, with CTX 3030 TID information. Click on the link to take you to his original post on the CTX 3030 forum.
http://www.findmall.com/read.php?86,1762075,1762075#msg-1762075
Note that I scanned them each in all four Separation modes, with very little variance in TID readings between each mode. The only exception is the ring in the upper left corner that, when I dug it, I found it had a 1909 penny stuck inside, which is still there. Here are two shots of the same rings, so you can get a better idea of the size and shape. TID numbers and K are listed for each.
[attachment 238173 afewgoldringTIDs.JPG] [attachment 238174 aerialviewofrings.JPG]
Since posting these pictures, Porschephile has posted a 14K white gold band that registered 12/01 in Ferrous Coin Separation mode. [attachment 240137 whitegold.jpg]
and Buried Crap NJ has also allowed us to share a link to his post of rings, with CTX 3030 TID information. Click on the link to take you to his original post on the CTX 3030 forum.
http://www.findmall.com/read.php?86,1762075,1762075#msg-1762075