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If you receive an SOS signal, your UDI-28™ boat unit sounds an audible signal, and the SOS message is
automatically displayed.
The SOS message identifies the
user sending the SOS, the network,
and the depth of the sender.
In the example on the right, the
sender is user 6, at a depth of 32
meters
.
Click Enter to turn off the audible signal.
Remote SOS
The boat unit contains the ability to send a remote SOS signal to a UDI-28™ user.
Failure to respond within 15 seconds by the user receiving a remote SOS causes the receiving user UDI-
28™ to start sending SOS.
To activate the remote SOS:
In the Message menu, select
Remote SOS or Remote Homing
from the list by scrolling with the
Up/Down buttons, and then click
Enter.
Click Send. The message is sent
Using the Compass
The UDI-28™ boat unit contains an electronic compass display. This compass is accurate within ±2
The electronic compass accuracy is influenced by the presence nearby metal bodies and may be biased
dramatically.
To open the compass display:
From the Main menu, select Compass.
1. Magnetic North
2. Swim direction
To exit the compass display:
Select Main and click Enter.
SOS DETECTED
User 6
15:21
Net : 1
Depth : 21m
MESSAGES
14. Remote SOS
1
2
3
N
COMPASS CAL
63
4
3. Time
4. Your heading (Degrees)
36
13:25
MAIN
.
o
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