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Voyager III System Configuration
When the camera is in this mode, an icon is either briefly or continuously
displayed, depending on the setting of Icon Display Mode (see page 52).
Note: The camera points toward the cursor position for the dwell time period (a
minimum of 10 seconds). If the cursor is moved during that time, the camera will
not move immediately to the new position. It will ignore all other RSD messages
(produced when the cursor is moved to another position) until the dwell time
expires. Then it will respond to the next RSD message received.
BWC Message
When this option is enabled, the camera will slew (move) to a preselected
waypoint when that waypoint gets to within approximately a 3 mile (5 km) range,
based on waypoint location information from the NMEA BWC messages.
For example, while en route the operator could designate a buoy, an island or
any other landmark as a navigation waypoint and the camera will point toward it
automatically when in range. The camera will remain on the target for the
specified dwell time. If an additional BWC message is received, the camera will
point to the newer BWC heading for an additional dwell time period.
When the camera is in this mode, an icon is either briefly or continuously
displayed, depending on the setting of Icon Display Mode (see page 52).
TTM Message
When this option is enabled, the camera tracks selected radar targets using data
from NMEA Target Tracking Messages (TTM) provided by the radar unit.
While it is possible to select up to 100 targets to be tracked by Voyager III (refer
to the radar or GPS documentation on how to designate a target), typically the
operator selects five or less. Once targets are selected, the camera will point
toward each sequentially, and track it using position data sent from the radar unit.
The camera points at each target for a preset amount of dwell time (10 seconds
by default) before moving on to the next target. The dwell time is determined by
the setting of Target Dwell.
Due to the way radar operates, it is possible to lose a target momentarily. To
ensure that the tracking process continues after the momentary loss of a target,
the TTM function maintains the last known position of the target in its queue for
60 seconds after receiving the last valid message. After the 60 seconds has
lapsed, that target is removed from the queue.
Once the Voyager III begins to sequentially track the selected targets, you can
override the automatic scan by using the joystick to point the camera in a
different direction. When the joystick is released, the camera returns to tracking
its targets 10 seconds after the last JCU input (buttons or joystick).
When the camera is in this mode, an icon is either briefly or continuously
displayed, depending on the setting of Icon Display Mode (see page 52). In
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432-0005-00-10 Rev 100 — Voyager III Operator's Manual
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