Popular Post Jonathan Porter Posted August 6, 2022 Popular Post Share Posted August 6, 2022 On 8/4/2022 at 6:20 AM, Jonathan Porter said: I had to listen through all the shot gun pellets near the surface and focus on the edge of detection signals at depth, it paid off. I’ve been asked to elaborate on my comments about listening through bird shot, and considering this relates to all detectors not just what I use, I’ll reply here and Steve can move it if it doesn’t fit in with the content of this thread. A highly sensitive early sampling PI like the Axiom and the GPX6000 will hit HARD on tiny birdshot near the surface, as such they can become extremely pesky for these PI’s as most areas will have a plethora of these pesky little non-ferrous targets scattered about over the gold areas, especially in and around diggings and workings etc. If I know there is an elluvial/alluvial/collivial gravel layer sitting under the surface gravels or soils generally, nuggets will be sitting on bottom in those soils/gravels mixed clays ect due the way gold bearing rocks weather and the age of those gravels. As such if the surface gravels have a peppering of shot gun pellets I just force myself to ignore the loud signals even though they sound sweet (non-ferrous) and instead focus on the broader quieter repeatable signals that can more often than not ONLY be gold as the shot can’t work its way in that deep. When I’m detecting in known areas I often just ignore loud surface targets even the non-ferrous single signal ones and focus on the broader range of motion signals, this immediately improves my success rate and time spent chasing nonsense signals. My maxim in old workings is theres a 90% chance a surface target is rubbish and a 80% chance a deep target in unturned over ground is gold, so I focus on those types of signals instead. Hope this helps JP 6 5 Link to comment Share on other sites More sharing options...
Dan Smith Posted August 6, 2022 Share Posted August 6, 2022 46 minutes ago, Jennifer said: This deserves more than just the purple "thank you" emoji... thank you JP.. you are a true asset to the knowledge base on the board... thank you so much. Jen Great advice JP. I am guilty of focusing on those sweet shallow signals. Pesky buggers can get real frustrating after the first 20? thanks ???⚒️? Link to comment Share on other sites More sharing options...
Gerry in Idaho Posted August 7, 2022 Author Share Posted August 7, 2022 22 hours ago, Jonathan Porter said: When I’m detecting in known areas I often just ignore loud surface targets even the non-ferrous single signal ones and focus on the broader range of motion signals, this immediately improves my success rate and time spent chasing nonsense signals. My maxim in old workings is theres a 90% chance a surface target is rubbish and a 80% chance a deep target in unturned over ground is gold, so I focus on those types of signals instead. Hope this helps JP We've been doing the same thing with the Axiom at a couple known sites we've detected in times past. We Play the odds and do not exert energy to chase those boomer signals, which is normally trash. We've been listening for the softer and deeper signals. Usually, the deeper the better of the odds of Au. The surface BB's and small rubbish can be quite annoying in some areas, but you learn to deal with it. An experienced ear can tell the width of the signal and even if it's a surface target. Another thing to do in areas (you know) with surface trash, is to scuff the top inch and if it moves, I usually walk on while trying to spend the time on targets that are not surface. Again, I mentioned in ground you know from previous success hunts. 4 Link to comment Share on other sites More sharing options...
Steve Herschbach Posted August 7, 2022 Share Posted August 7, 2022 If using a mono coil, a small surface target will signal under each edge of the coil, a double signal. Easy for beginners to miss target by digging in middle of coil, when in fact target is under one edge. Swing wide enough to determine if you have a centered target, or one that is hitting on each edge. If it is that double blip hit on both edges type, this can be used to give a pass on the target. I usually stick my pick head with super magnet down and scuff around, and that will pull up a ferrous bit. Other wise dig it, unless in thick bird shot, then give it a pass. Again, just playing the odds. 3 Link to comment Share on other sites More sharing options...
cobill Posted August 7, 2022 Share Posted August 7, 2022 3 hours ago, Gerry in Idaho said: We've been doing the same thing with the Axiom at a couple known sites we've detected in times past. We Play the odds and do not exert energy to chase those boomer signals, which is normally trash. We've been listening for the softer and deeper signals. Usually, the deeper the better of the odds of Au. The surface BB's and small rubbish can be quite annoying in some areas, but you learn to deal with it. An experienced ear can tell the width of the signal and even if it's a surface target. Another thing to do in areas (you know) with surface trash, is to scuff the top inch and if it moves, I usually walk on while trying to spend the time on targets that are not surface. Again, I mentioned in ground you know from previous success hunts. I've never been able to distinguish a soft signal from a .01 gram nugget from a deep signal. How does a deep signal sound? Bill 1 Link to comment Share on other sites More sharing options...
Gerry in Idaho Posted August 8, 2022 Author Share Posted August 8, 2022 2 hours ago, cobill said: I've never been able to distinguish a soft signal from a .01 gram nugget from a deep signal. How does a deep signal sound? Bill I'll try to catch it on video next time, if I remember. Soft signal is not as pronounced and sharp as a surface signal of the same size. Larger deep gold on the Axiom has a broader sound than a surface target. I try to play a game and guess the size of the target and approx depth before each dig. I've become pretty good at telling small narrow surface sounds from medium and larger deeper sounds. Now a .22 casing at depth fools me as I hear soft sound and it's not broad, but I know it's not on surface so I dig it. 2 Link to comment Share on other sites More sharing options...
botics Posted August 9, 2022 Share Posted August 9, 2022 I want to thank everyone for their input. There are true experts on here that help everyone whether starting out like my boys and those older gentlemen like myself. Great resource and I am proud to be a part of this forum. 3 Link to comment Share on other sites More sharing options...
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