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<blockquote data-quote="davent" data-source="post: 287867" data-attributes="member: 6002"><p>Been playing around with the idea of adding a biggish dd to my coils. Having pretty good success with a 14x9 evo mono on small gold, but bigger gold is eluding me, and I know there must be some bigger bits still around.</p><p>Ground is pretty hot, and comming up to the wet season proper now, so ground noise is increasing. I can NEVER get my machine to normal or sharp (4500) so spend nearly all detecting time in enhance.</p><p>So, thinking that to get more depth, I need a dd, in normal, pump up the gain, wind the stab back and search the deeper areas where im finding my sub grammers.</p><p>Now, which dd do I need?</p><p>I like eliptical coils, for the reason of being able to carry them easier in my pack, and also weight savings. Now I kinda understand how a dd works, as in rather than a cone like a mono, it sends down a sheet, so side to side is a must, where I sometimes find myself pushing fwd with a mono. So how does being eliptical effect a dd depth, say a 17x11 platypus dd compared to a 17 round dd, much depth loss on the elip?</p><p></p><p>Also, will the 17 platypus elip in normal, grt much more depth than a 15" mono in enhance and tuned down a bit, gain around 6-7 ?</p><p></p><p>cheers</p></blockquote><p></p>
[QUOTE="davent, post: 287867, member: 6002"] Been playing around with the idea of adding a biggish dd to my coils. Having pretty good success with a 14x9 evo mono on small gold, but bigger gold is eluding me, and I know there must be some bigger bits still around. Ground is pretty hot, and comming up to the wet season proper now, so ground noise is increasing. I can NEVER get my machine to normal or sharp (4500) so spend nearly all detecting time in enhance. So, thinking that to get more depth, I need a dd, in normal, pump up the gain, wind the stab back and search the deeper areas where im finding my sub grammers. Now, which dd do I need? I like eliptical coils, for the reason of being able to carry them easier in my pack, and also weight savings. Now I kinda understand how a dd works, as in rather than a cone like a mono, it sends down a sheet, so side to side is a must, where I sometimes find myself pushing fwd with a mono. So how does being eliptical effect a dd depth, say a 17x11 platypus dd compared to a 17 round dd, much depth loss on the elip? Also, will the 17 platypus elip in normal, grt much more depth than a 15" mono in enhance and tuned down a bit, gain around 6-7 ? cheers [/QUOTE]
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