Introduction; Features; Manual Overview; Conventions - Uniden UM255 Owner's Manual

Introduction

Introduction

Features

• Built for Rugged Australian Marine Conditions
• 2 Year Warranty
• Dual Speakers: One speaker is mounted at the front of the unit allowing better sound clarity
and the second speaker is built into the microphone hand piece.
• 4 Watts Maximum TX Output Power
• 27MHz Dual Band: The UM255 can operate in the 27MHz AM Marine band for Inshore
Boating Radio Services, or the 27MHz AM CB band
• 10 AM Marine Channels | 40 AM CB Channels: Allows you to choose from all the
Australian Inshore Boating Radio Services channels, or Australian AM CB channels to
transmit or receive messages.
• Splashproof: Meets the world standard JIS4 level. Being defined as no harmful influence by
receiving a splash of water from any direction.
• Rugged Speaker Microphone: With Channel Select, One Touch Ch88|9 and Dual Watch
keys.
• Variable Squelch Level Knob: Manually adjust the threshold of the receiver to eliminate
background noise whenever a transmission is not being received
• Automatic Squelch (ASQ): Set to ASQ to enable the Automatic Squelch.
• Volume Control Knob: Rotary Power on/off and Volume Control
• Backlit Keypad and LCD Display: The keypad and Extra Large Liquid Crystal Display (LCD)
is backlit for easy viewing at night or in low light situations, and features a dimmer function
• Built-in PA Output: Connect optional PA speaker for Public Address and Siren Function.
• Siren Alert Function: Alert nearby vessels with connection of an optional PA speaker
• RF Gain Function: Adjust to boost the strength on incoming signals.
• ANL (Automatic Noise Limiter) Function: Reduces unwanted signal noise for better
clarity.
• One Touch Channel 88|9 Recalling: Instantly switch to the emergency Ch 88 (Marine
band) or CH9 (CB band) with the touch of one button on the radio or the microphone.
• Open Scan: Scans all the channels in memory and locks on active channels.
• Group Scan (GS) with Priority Channel Watch: Allows the user to select the channel they
want to monitor / listen to in a group, along with a priority channel (priority watch).
• Dual Watch Function: Allows you to monitor Ch 88 (Marine band) or CH9 (CB band) for
activity intermittently while monitoring another channel at the same time.
• Roger Beep: Confirmation tone indicates the completion of your transmission.
• Call Tone Function: Choose from one of 5 ringing tones to initiate your transmission with
the touch of one button.

Manual overview

Conventions

This manual uses several different type styles to help you distinguish between
different parts of the radio:
• BOLD CAPITALS indicates an actual button or knob on the radio or microphone.
• Upper and Lower case bold indicates a connector or label on the radio.
• Italics indicate text on the display, such as menu options, prompts, and confirmation mes-
sages.
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