Operating Tips - Fisher 1280-X Aquanaut Operating Manual

OPERATING TIPS

1. Keep the searchcoil cable wound snugly around the
stem when diving around coral or jagged rocks to keep
it from snagging.
2. Divers should make sure the drain holes in the headset
are unobstructed. Better yet, wait until you're on the
bottom before putting them on and take them off
before surfacing.
3. Divers should also keep the searchcoil at least two feet
away from their body. Metal gear (weights, gauges,
tanks, etc.) will be detected by the 1280-X if held too
close.
4. Practice pinpointing. There's nothing sacred about the
method described in this manual. Many 1280-X users
have developed their own pinpointing methods.
5. False signals may be caused by rapidly moving surf,
highly mineralized or trashy ground, large or irregular
shaped trash and bumping or raising the searchcoil very
fast. A false signal will generally sound suspicious to the
experienced treasure hunter. It may be very faint, or very
sharp and abrupt with static. Often when you go back
over the same spot a false signal will simply disappear.
You may reduce the number of false signals you get by
increasing the discrimination level and/or reducing the
sensitivity level.
6. If you're wading or hunting on land, hold your digging
tool behind your back or above your waist. Your 1280-X
is sensitive enough to sound off each time you sweep
your coil beneath it.
7. There is some sensitivity loss at the higher levels of trash
rejection. The greater the ground mineralization, the
higher the sensitivity loss. For example, you may be able
to detect a penny 6 inches deep at zero discrimination,
but you may be able to detect it no deeper than 5-inches
at the pull tab discrimination point.
8. Some objects such as shallow bottle caps, bent pull tabs
or trash less than 2 inches from the coil may be difficult
to reject. The 1280-X will instead respond with a strong
broken signal which will usually disappear if the coil is
speeded up or raised slightly.
9. If you hear two beeps very close together and can't
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