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Pinpointing
The Impulse AQ Limited does not have a “no-motion” pinpoint mode; the coil must
be in motion in order to detect a target. When you initially detect a target, slow down
and use short sweeps across the target, looking “through” the coil and taking a mental
snapshot of the ground location where the peak target response occurs. Then sweep
across the target at a 90° direction to get a 2D visualization of the location. This is
called “X-ing” the target. Listen to the audio in both directions to get a better idea of
what the target might be:
•
Crisp response in both directions: likely a good target.
•
Crisp response in one direction, but muddled or broken response in the
other: likely a trash target like a pull tab or iron. However, some jewelry
(chains, pendants) can produce odd responses.
•
Single response in one direction, but double response in the other: likely a
nail or other long ferrous target. However, a coin or ring buried on-edge can
also produce this response.
•
Double response in both directions: likely a small iron shard near the surface.
These are prevalent on salt beaches where iron/steel (especially fishhooks)
decompose and small shards are left. They are detected at the perimeter
of the coil, not center, and produce a double-beep, regardless of sweep
direction. Since shards fall through a scoop and are difficult to see, if your
target is constantly moving around in the sand during recovery, then it is
likely a shard.
•
In general, when you think the target is out of the hole but it is still difficult to
find, turn the coil on-edge and use the edge of the coil for pinpointing.
For beach hunting, a beach scoop is the fastest way to recover targets. In the water,
a beach scoop is a necessity as the sand fills in very quickly. In dry sand or for land
hunting, a pinpointer will also speed up recovery.
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