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oneway signals

A

Anonymous

Guest
This is better posted here than on the Explorer forum:
Can somone offer some help on how to interpret oneway signals, when to dig and when not to dig?
 
What I have been doing on the one way signals is going to pinpoint and see where the item is, if it is weak and where it was in disc I will go back to disc and see if I can get the signal both way or try to come at the target from a different direction. If it moved or loud I know it is iron and will pass it by.
Rick
 
what is a one-way signal... i dont recall hearing about that in either the owners manual or sabiches book.
 
There are two ways to interprret one way:
1) signal heard when passing the coil from left to right but not vice-versa. (what I intended in the original question) Let's call this "the L/R one way"
2) signal heard horizontally, but not when orienting the sweep at 90 degrees to original direction. Let's call this the "90 degree one way"
I assume the responses were to L/R oneway, but could the 90 degree oneway be a coin on end? If so, how do you decide to dig or not?
 
I have found signals that give a tone when sweeping in one direction (left or right) only and in one axis only, are almost always iron nails. Especially when you have sens. up pretty high.
Many times signals that give a tone sweeping in BOTH left and right directions, but not at 90 degrees rotated CAN be coins on edge or coins near iron.
 
David,
Further to my answer on the other forum ... you use the same technique of slowly circling the target while swinging. A coin on edge will give the loudest signal when you sweep perpendicular to it and you'll get the least sound (or no sound) when you sweep along it's length (this will vary depending just how on edge it is). You'll get varying responses in-between these extremes.
So when you get this type of response slow down and listen carefully. A smooth, repeatable signal is worth checking and the silver "tingle" is a dead give-away ;^).
HH ... Gord.
 
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