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One way signals on CMGT
- Thread starter KennyD
- Start date
One way signals can be many thing.. iron or other target you have discriminated out next to what you are seeing in the one way signal. Can also be a coin on end. If you have iron or other low conductor discriminated out, and get a good oneway signal, jump over to all metal and rescan you will probably see other targets right next to the good one.
I have been cherry picking dimes and quarters as the ground is to dry to dig. Many one way signals end up being either standing coins or bottle caps. Caps will bounce iron, bottle cap, quarter, 50c with upper vdi of 84-88 then a 94 or 95. All I would see is 84 on a oneway and maybe the 95, drop to All Metal and you see all the numbers.. If the target is shallow the 9" stock coil will not have a lot of separation in trashy area and you can get silent masking in one swing direction. Rotate 90 degrees and recheck, you my then get a 2 way signal. Most often I find one way 80 and higher signals, especially at the end of the swing are halo signals from iron or I am tilting the coil when starting the return swing.
Read these articles, they really helped me understand what was going on.
Halo Effect
This one is long, read it in multiple sittings and again after a couple of days or a week
Search coils, masking and other great info
I have been cherry picking dimes and quarters as the ground is to dry to dig. Many one way signals end up being either standing coins or bottle caps. Caps will bounce iron, bottle cap, quarter, 50c with upper vdi of 84-88 then a 94 or 95. All I would see is 84 on a oneway and maybe the 95, drop to All Metal and you see all the numbers.. If the target is shallow the 9" stock coil will not have a lot of separation in trashy area and you can get silent masking in one swing direction. Rotate 90 degrees and recheck, you my then get a 2 way signal. Most often I find one way 80 and higher signals, especially at the end of the swing are halo signals from iron or I am tilting the coil when starting the return swing.
Read these articles, they really helped me understand what was going on.
Halo Effect
This one is long, read it in multiple sittings and again after a couple of days or a week
Search coils, masking and other great info
As a general rule if you get a one way signal its best to turn 90 degrees and see what signal you get that time,sometimes a coin or what could be on edge that type of thing.If i get a one way signal on the second attempt then i would usually class that as a rubbish signal and leave it.But if the 2nd signal is a solid 2 way signal then i will dig it.
As the old saying goes,if in doubt dig it out
As the old saying goes,if in doubt dig it out