2665 Series Operation Manual
EZT-2665-8000/6
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Page
38
of
64
9.
F
UNCTION KEYS
Beacons can be activated or deactivated by using the
F
UNCTION
K
EYS
on the
computer keyboard or by a left mouse click on the F1 – F4 keys on the Easytrak
Alpha display.
A right mouse click on the F1 – F4 keys brings up a dialogue box allowing the user
to enter a
M
ANUAL
D
EPTH
.
Fig 7.1 Automatic Depth
Fig 7.2 Manual Depth
By default, depth is automatically calculated by Easytrak Alpha from the received
acoustic signals. However, when the difference in water depth between the target
and the transducer is small resulting in a very low vertical angle, a manual entry of
depth can result in a more stable position.
To enter a manual depth, tick the checkbox; the edit box will then permit a value to
be entered.
Function key
F5
brings up the
W
AYPOINT DIALOGUE BOX
(see fig 4.3)
