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3. The Navigation display
opens.
Using the Navigation display
The display shows the track to your target. Keep an eye on the track to navigate to your target. You
should dive in a slight zigzag direction to allow for more accurate navigation towards your target.
The navigation display is explained below:
2
3
1
13:25
TRACK
LOCK:
5
9
8
1. Beacon direction (relative to your
heading). Will appear in the first time
only if the Doppler value (see 9.) is
greater or equal 4).
2. Swim direction (your heading).
3. Time.
4. Track – current track direction.
5. Lock – the course you need to follow.
to arrive at the beacon.
SOS Signals
Unlike other UDI-28™ signals, SOS signals are activated across all network channels, and have a longer
range than ordinary communications signals.
In the event of an emergency, you can activate your SOS signal by pressing the red H (Help) button on
your UDI-28™ for several seconds. An SOS signal is sent to all UDI-28™ and boat unit users in the
area.
4
10.5
m
10
42
5
Start
6
Main
7
13:25
10.5
m
TRACK
LOCK:
42
5
Start
Main
6. Ascent bar – shows you the limits of your
ascent rate.
7. Start – restart tracking. This is useful if
you suddenly loose the beacon.
8. Doppler value bar – shows that you are
approaching (getting closer to) the target.
9. Doppler value - shows how quickly you are
approaching (positive numbers) or moving
away (negative numbers) from the target.
10. Depth indicator- present diver depth.
27
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