Max houser
Full Member
I was never a big fan of air testing.
with that said I do air test when using a new coil, or testing new settings or programs...just to give me an idea how the unobstructed "air seeing" difference
is between certain settings.
funny how many videos I watch where guys will air test coins in the cardboard sleeves that have staples in them, or they lay a tape measure out with the metal end touching the coil... I'm sure they mean well...
One important thing that I noticed while air testing recently...
I was playing with my settings and had the sensitivity up to 30(highest setting) I took a few coins, both silver and clad...the farther i got away from the coil I noticed with me passing the coin at my swing rate back and forth I got a thunk as the coin exited the coil perimeter. all E-trac users are familiar with this thunk. so I tried it again at the same distance and sped up my passing speed and the thunk disappeared and became a clear signal????
well I ran out to my favorite hunted out spot to test this deep theory I was having. I came across a jumpy 12-38 one way whistle to thunk signal...I then swung faster over the target and the signal became more of a diggable tone and even appeared both ways. I dug and it was a 1917 wheat penny at 10".... I continued on for about 20 minutes, dug a couple rusty nails, but scored two more deep wheats, a 1921, and a 1919 . so now I am baffled that I have been told to swing slow to get deeper targets and have found with increased swing speed they actually became more clear..so now I'm happy but confused...how many have I missed along the way
with that said I do air test when using a new coil, or testing new settings or programs...just to give me an idea how the unobstructed "air seeing" difference
is between certain settings.
funny how many videos I watch where guys will air test coins in the cardboard sleeves that have staples in them, or they lay a tape measure out with the metal end touching the coil... I'm sure they mean well...
One important thing that I noticed while air testing recently...
I was playing with my settings and had the sensitivity up to 30(highest setting) I took a few coins, both silver and clad...the farther i got away from the coil I noticed with me passing the coin at my swing rate back and forth I got a thunk as the coin exited the coil perimeter. all E-trac users are familiar with this thunk. so I tried it again at the same distance and sped up my passing speed and the thunk disappeared and became a clear signal????
well I ran out to my favorite hunted out spot to test this deep theory I was having. I came across a jumpy 12-38 one way whistle to thunk signal...I then swung faster over the target and the signal became more of a diggable tone and even appeared both ways. I dug and it was a 1917 wheat penny at 10".... I continued on for about 20 minutes, dug a couple rusty nails, but scored two more deep wheats, a 1921, and a 1919 . so now I am baffled that I have been told to swing slow to get deeper targets and have found with increased swing speed they actually became more clear..so now I'm happy but confused...how many have I missed along the way