Introduction - UTC UDI-28 User Manual

Introduction

Congratulations on your purchase of the UTC – Underwater Digital Interface 28 System.
UDI-28™ is a device that contains several functions used for diver safety, communication and
computation. Throughout this manual we will use the term UDI-28™instead of Underwater Digital
Interface (UDI-28) System. UDI-28™ is a device that contains several functions that were implemented
to increase safety, enable underwater communication and reliable computation. The UDI-28™version
was derived from the celebrated UDI-14™ while taking into consideration years of experience, feedback
from users, field measurements and specific requirements by professional organizations. This version
supports extended number of messages, two large networks, state of the art error corrections code that
increases communication reliability, extended range (without extending the power) for communication,
high capacity batteries, seamless connection process to other systems (for example Passive Acoustical
Diving Radar), OLED, enhanced compass, new acoustical antenna with improved performances, support
for different languages and more. The company is grateful to the so many users and organizations that
contributed for this version.
The system consists of the UDI-28™ diving unit, an optional UDI-28™ PRO boat unit with an active
antenna, and the UDI28-MANAGER PC software. Each item can be purchase separately.
The UDI-28™ contains the following functions:
 Text messages communication device
 SOS signal transmission and reception
 Navigation unit and homing device
 Dive Information
 Compass
The UDI28-MANAGER PC software can be used in conjunction with only the UDI-28™ to be used to
update text message and names (users) lists and groups and to update the firmware.
The UDI-28™ text messaging system links divers through transmission of pre-set messages with ease
and reliability. Depending on environmental conditions, it is possible to receive signals from up to 1000
meters.
Upon receiving a message signal, the UDI-28™ unit sounds an audible alert and lights up to show the
message (if these features were enabled).
The SOS signal can be activated by a diver in distress, or remotely by any diver who suspects that his
buddy is in distress. Upon activation of an SOS signal, the UDI-28™ transmits information required to
locate the SOS sender.
Each UDI-28™ includes a homing device to help the diver locate other divers or the dive boat.
The UDI-28™ can be worn on the lower arm or attached to the Buoyancy Compensator (BC).
The UDI-28™ permits a diver to communicate with any other diver in the network without distractions
or potential discomforts.
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