Introduction; Features; Manual Overview - Uniden UM423 AM Owner's Manual

Am marine radio
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Introduction

Introduction

Features

Designed and Engineered in Japan
Built for Rugged Australian Marine Conditions
2 Year Warranty
Dual Speakers:
and the second speaker is built into the microphone hand piece.
4 Watts Maximum TX Output Power
10 AM Marine Channels:
channels to transmit or receive messages.
Watertight Radio Housing:
means the radio is able to withstand powerful water jets without damage
Rugged Waterproof and Submersible Speaker Microphone:
Touch Ch88 and Dual Watch Select Keys. Meets the worldwide JIS7 waterproof specification;
submersible to 1.0 metre depth for 30 minutes
Variable Squelch Level Knob:
noise whenever a transmission is not being received
Volume Control Knob:
Backlit Keypad and LCD Display:
is backlit for easy viewing at night or in low light situations, and features a 3 level dimmer
function
RF Level Bar Indicator:
Built-in PA Output:
Siren Alert Function:
ANL (Automatic Noise Limiter) Function:
NB (Noise Blanker) Function:
One Touch Channel 88 Recalling:
one button on the radio or the microphone
Open Scan:
Group Scan (GS) with Priority Channel Watch:
want to monitor / listen to in a group, along with a priority channel (priority watch)
Dual Watch Function:
monitoring another channel at the same time.
Roger Beep:
Call Tone Function:
touch of one button
Accessory connector: For connecting optional External Speaker and PA Speaker
And More!

Manual overview

Conventions
This manual uses several different type styles to help you distinguish between different parts
of the radio:
BOLD SMALL 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
messages.
One speaker is mounted at the front of the unit allowing better sound clarity
Allows you to choose from all the Inshore Boating Radio Services
Meets the worldwide JIS6 water-resistance specification, which
Adjust the threshold of the receiver to eliminate background
Rotary Power on/off and volume control
View the radio frequency signal strength.
Connect optional PA speaker for Public Address and Siren Function.
Alert nearby vessels with connection of an optional PA speaker
Reduces unwanted power or ignition noise
Scans all the channels in memory and locks on active channels
Allows you to monitor Ch 88 for activity every two seconds while
Confirmation tone indicates the completion of your transmission
Choose from one of 5 ringing tones to initiate your transmission with the
The keypad and Extra Large Liquid Crystal Display (LCD)
Reduces unwanted signal noise for better clarity.
Instantly switch to the emergency Ch 88 with the touch of
Allows the user to select the channel they
3
With Channel Select, One-

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