26
Navigation to a target
UDI-28™ can be used to track an SOS beacon or a Homing beacon. A homing beacon transmits a
homing signal from the boat unit on a specific dedicated frequency. An SOS beacon transmits a homing
signal on a specific frequency, received on all networks used with UDI-28.
Navigation using the UDI-28™ can be done only while the diver or beacon is moving in relation to each
other. In other words, the UDI-28™ diver, the beacon, or both must be moving, since the navigation
beacon relies on the Doppler Effect.
Navigation method for tracking:
Correct navigation as you dive showing the adjusted direction of the target beacon on the UDI-28.
Choose a random initial direction to start diving, and then adjust as you go.
1. Starting location of diver
3. Beacon location
2. Course adjustments
To enter Navigation mode:
From the UDI-28™
Main
menu, select
Navigation
and press
Enter
.
To exit the
Navigation mode
and return to the
Main
menu, select
Main
, and press
Enter
.
Navigation mode
Navigation is used to dive to a homing beacon, or to a unit transmitting an SOS signal to provide
assistance.
1.
From the
Navigation
menu,
select
SOS track
to track an
SOS beacon, or
Homing
track
to track a Homing
beacon.
NAVIGATION
2. Homing track
1. SOS track
3. Mask Homing
2.
Press
Enter.
1
2
2
2
3
