Visual Land Impulse Instructions d'exploitation télécharger pdf (Page 15)

PINPOINTING

Pinpointing your target with the IMPULSE is relatively simple,

but it will take some practice.

1. Make sure your IMPULSE is in tune. (See page

10, Tuning, if you need to tune your IMPULSE.)

2. Locate a target and pass the search coil over

it. You should notice three things from your IMPULSE:

1) The red LED flashes, indicating a target, 2) The

LCD signal-strength bar graph climbs, peaking

when the coil is directly over the target and 3) an

audible tone is heard, increasing in pitch and

volume as the search coil passes over the target.

3. Sweep the coil over the target, side-to-side and

Divers can sweep the IMPULSE

search coil in a wide semicircle to

methodically cover a large open

area, or probe cracks and crevices

with the search coil using no motion.

SEARCHING

NOTE:

Your threshold tone will probably go up and down as you search.

This is a perfectly normal response since the distance between

your coil and the bottom varies as you sweep the coil back and

forth. You may want to readjust your threshold level slightly to

maintain a comfortable “average “ threshold volume. You will also

have to readjust it if the ground mineralization changes sufficiently.

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Visual Land Impulse Instructions d'exploitation Page 15