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<blockquote data-quote="Roscoe" data-source="post: 101645" data-attributes="member: 1615"><p>Karl, I just done some in ground test with SPP, commander 8" mono coil Gain set at 1 to 2. I picked this low gain level as it gave clear signals on $1-$2 coins at 6" plus, but not to deep for general park use.</p><p></p><p>Test coins were 150mm in ground using machine speaker.</p><p></p><p>$2 coin GB8.5 low tone GB4 coin disappears</p><p>$1 coin GB8.5 low tone GB4 coin all but disappears if swept slow, fast sweep gone.</p><p>50c coin GB8.5 no signal GB7 or 9 low tone GB4 high tone</p><p>20c coin GB8.5 high tone GB11 low tone</p><p>5-10 cents high tone could not shift them </p><p>I tested a Iron nail GB8.5 low tone Gb4 high tone. Will have to test more Iron targets?</p><p></p><p>So for chasing $2 & $1 coins in parks i will set my gain low at 1-2, GB8-9, find a low tone target that's sharp and turn GB down to 4 if target disappears then there is a fair chance it might be a $2 or $1 coin. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> </p><p></p><p>John, I tried that number in ebay and nothing came up?</p></blockquote><p></p>
[QUOTE="Roscoe, post: 101645, member: 1615"] Karl, I just done some in ground test with SPP, commander 8" mono coil Gain set at 1 to 2. I picked this low gain level as it gave clear signals on $1-$2 coins at 6" plus, but not to deep for general park use. Test coins were 150mm in ground using machine speaker. $2 coin GB8.5 low tone GB4 coin disappears $1 coin GB8.5 low tone GB4 coin all but disappears if swept slow, fast sweep gone. 50c coin GB8.5 no signal GB7 or 9 low tone GB4 high tone 20c coin GB8.5 high tone GB11 low tone 5-10 cents high tone could not shift them I tested a Iron nail GB8.5 low tone Gb4 high tone. Will have to test more Iron targets? So for chasing $2 & $1 coins in parks i will set my gain low at 1-2, GB8-9, find a low tone target that's sharp and turn GB down to 4 if target disappears then there is a fair chance it might be a $2 or $1 coin. :) John, I tried that number in ebay and nothing came up? [/QUOTE]
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