2665 Series Operation Manual
EZT-2665-8000/6
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Page
31
of
64
8.1.7
S
MOOTHED
P
OSITION
Selecting
S
MOOTHED
P
OSITION
(default) allows the current position to be smoothed,
helping to eliminate noisy tracking.
When in smoothing mode, velocity gating is used to help remove occasional
spurious positions. When a position is judged to be spurious or there is no reply, a
predicted value based on previous good positions is used. The velocity gate is
dynamic in that the size of the gate starts wide then reduces to a minimum value
(10m/s) when sufficient ‘good’ positions are received. Should a series of ‘bad’
positions be received, i.e. outside the velocity gate, the gate will widen until a
reliable set of valid positions is re-established.
8.1.8
D
ISPLAY
Selecting
D
ISPLAY
allows the display to be set to
N
ORMAL
or
D
IMMED
for low-light
conditions.
Fig 3.8 Display brightness
8.1.9
C
OMMUNICATIONS
Fig 3.9 Communications
Selecting
C
OMMUNICATIONS
brings up a dialogue box to enable Easytrak Alpha to
communicate with the Easytrak Alpha computer and to any navigation computer
using the data output. These values must agree with those set on the Easytrak
Alpha computer
(
PLEASE SEE
4.8.1.1
P
ARAGRAPH
17)
.