Uniden SUNDOWNER UH-057 Operating Manual

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uniden"SUNDOWN ERUH-{)57

Handheld UHFCB Radio

with UserProgrammable

Built-inSELCALL

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OPERATING GUIDE

uniden.

UNIDEN AUSTRALIA PTY. LIMITED
345 Princess Highway, Rockdale, NSW2216

Ph(02)599-3100 FAX[phone]

Please read this OperatingGuide carefullybefore
operating this radio

Safety Information

DONOToperate the transmitter of any radio equip-
mentwiththe antenna touching,or close to the eyes,
face, or exposed body parts.

DO NOTletchildren operate any transmitter-equipped
radioequipment.

DO NOToperate the transmitter of any radio equip-
ment unless allthe Radio Frequency (RF) connectors
are secure and any open connectors are properly

terminated.

Have your radio equipment serviced by a qualified

technician.

Nickel-Cadmium Battery Warning

This equipment contains a Nickel-Cadmium battery.
The Nickel-Cadmium battery contained in this equip-

ment may explode ifdisposed of in a fire.

DONOTshort circuitthe battery.

DONOTcharge the Nickel-Cadmiumbattery used in
this equipment inany other charger other than the one
designed to charge this battery. Usinganother
charger maydamage the battery, or cause the battery
to explode.

Uniden~ is a registered trademark of Uniden Corporation.

Features, Specifications, and availability of Optional
Accessories are all subject to change without notice.

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Table of Contents

Introduction ..

Description ..........................

Warning : .........

LicensingRequirements ..........

Feature Highlights.......................................................

Unpacking .

OptionalAccessories ..........................

Controls and Indicators ..............................................

TopIndicatorsand Display......................................

SideControlsand Connectors.................................

FrontControls ...................................

NumericKeypadControlsandFunction..................

Getting Started............................................................

Antenna ...................................................................

BatteryInformation .....................................

Installation ..............

Rechargingthe Nickel-CadmiumBatteryPack..

BeltClipInstallation.................................................

Operation ..............................................

Receive ...

DirectChannelKeying.. .......

Auto-Squelch .

ChannelScan....................................................

DropOutDelay..................................................

PriorityScan .......................

Createa ChannelScan Listwith

ChannelLock-OutFeature...........................

Transmit :.

SimplexI DuplexCommunication............................

LowBatteryLevelDetection ......

Special Feature ...............................................

SELECTIVE CALLING.. .., "....

SELCALLOperation .............

ReceiverQuieting ........................

Whena call isreceived......................................

ToneSqueichScanning.....................................

ToneCalling.......................................................

GroupCalling.. ...............................................

Programming ..

ReceiverSELCALLID .............................................

Transmitter SELCALL ID .. .........

OtherSELCALLParameters...................................

Tone Period ........................................

Lead-InDelay.....................................................

Lead-InTone......................................................

ProgrammingGuide ......

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UH-O57

CareandMaintenance................................................

Service ..........................................................

UHFCB Channel Information .....................................

SIMPLEXOperatingMode......................................

DUPLEXOperatingMode........................................

Specifications ..............................................................

General ...
Transmitter ..

Receiver ........................................................

SELCALL ........................................................

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Introduction

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Welcome to the world of CB Radio Communication. You
have chosen the most reliable, highly engineered, ultra-

precise piece of communication equipment.

Descrl ptlon

Your UNIDEN Sundowner UH-057 represents the most
advanced portable radio ever designed for use in the UHF
Citizens Band Radio Service. With Built-in SELCALL, this

radio allows you to call or to be called distinctively.

With its rugged physical and electrical design, this radio will
give a reliable years of trouble free service.

You are encouraged to thoroughly read the rest of this
operating guide to acquaint yourself with the superior
characteristic and operation of your transceiver. This full
featured radio operates on any of the 40 UHF frequencies
designated as Citizens Band Channels by the Spectrum
Management Agency.

WARNING

The Citizens Band Radio communication Service (CBRS)
is under the jurisdiction of the Australian Management
Agency (SMA). Any adjustment or alteration which will
change the performance of the transceiver's original SMA

type acceptance is STRICTL Y PROHIBITED. Replace-
ment or substitution of power or frequency determining

components e.g. Crystals, Transistors, ICs, Diodes, etc.

with other than those recommended by UNIDEN will
cause violation to the SMA type acceptance technical

requirement.

ulrements

Before using your transceiver, you must obtain a Citizens
Band Radio License from the Spectrum Management
Agency (SMA). Application forms and brochures relating to
CBRS are available at your nearest SMA office. Mail the

completed application form and the appropriate fee to the
Communications Manager, in the State or Territory in which
the station will be operated.

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UH-O57

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Feature Highlights

.

Full 40 Channel UHF CB Coverage

Operates on any of the 40 Channels designated as
Citizens Band Channels by the Spectrum Manage-
ment Agency.

Simplex/Duplex Communication

Allows the Uniden Sundowner UH-057 to operate
via a repeater station.

Two Level Switchable Transmitter Output Power

Lets you transmit at 1Watt or 5 Watts for short-
range or long-range communication.

Auto-Squelch System

Eliminates unwanted noise when activated.

Liquid Crystal Display (LCD) with Backlight

Shows visual display of the current Channel and/or
Operation. Illuminated everytime a Key is pressed
for better visibility at night or under dim conditions.

TX/Busy LED

Lights RED when the unit is transmitting. Lights

GREEN when the received signal (on the current

channel) is strong enough to break the squelch.

Channel Scan

Provides rapid, automatic scanning of programmed
channels.

Priority Scan

Regularly monitors your chosen priority channel
every 1.5 seconds during scan mode.

User Programmable Channel Scan List (using LOCK-
OUT switch)

Allows the user to customise the Channel Scan List
for faster scanning.

Battery Save

Conserves the Battery Power by putting the
receiver on "sleep" when monitoring inactive

channel.

Battery Low Detection

Informs the user when the battery level is Iow and
needs recharging.

SELCALL

Built-in Selcall (Selective Calling) System lets the
unit to call or be called selectively.

Numeric Keypad

Installed to give the users freedom to program his

own Selcall Codes or access other Selcall Func-
tions.

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UH-O57

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Receiver Quieting (Tone Squelch)

Prevents any unwanted signal inthe channel from
being heard unless the requiredtone codes to open

the "QuietCondition"is received.

CALLAlarm

When selectivelycalled, emits an audiblealarmto
notifythe user that a caller is on the channel.

Acknowledge Tone

Sends a response tone automaticallyto the caller to
acknowledge a Selective Call.

Group Call

Capable of transmittingand responding to group
calls.

Direct Channel Keying

Gives the user option to select channels directly
using the NumericKeypad.

Rechargeable Battery Pack

Eliminatesthe costlyexpense of frequent Battery
replacement.

Battery Free Memory

The programmed channels on the Scan list and
other unitsettings are retained in memorywhen the

BatteryPack is removed fromthe unit.

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UH-O5J

UNPACKING

Carefully check the package contents against the list:

. Uniden Sundowner UH-O57 UHF CB Radio

. Flexible Antenna

. AC Adaptor/Charger

. Standard Nickel-Cadmium Battery Pack

. Belt Clip

. Wrist strap

. This Operating Guide

If any of the items are missing or damaged, contact your
place of purchase immediately.

OPTIONAL ACCESSORIES

. Speaker-Microphone

A two-in-one combination for convenient transmit-
ting and receiving.

. Spare Battery Pack

A replacement pack for your rechargeable battery
(Either standard or Heavy Duty Pack).

. Battery Pack Charger

Desktop Rapid Charger

UH-O57

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Controls and Indicators

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ANTENNA
Connector LCD Display

TXlBUSY
Indicator LED

c

LOCKOUT DUPLEXI
Switch SIMPLEX

Switch

CHANNEL DOWN

Switch

Top Indicators and Display

Antenna Connector

- connect the antenna to this TNC port

Lock-out Switch

-locks out a selected channel from channel scan.

Duplex Switch

- allows Simplex or Duplex Operation on Channels 1
through 8

ChannelUP/DOWN Switches

- useto select a channel

On/Off Volume Cont~1

- Rotate clockwise to turn the radio ON and increase
the volume. Rotate counter-clockwise to turn the
radio OFF or decrease the volume.

TX/Busy Indicator

- The RED LED lights when you press the PIT switch
(to transmit). It blinks when the battery is Iow and
needs recharging. The GREEN LED lights when the
received signal (on the current channel) is strong
enough to break the squelch.

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UH-O57

LCD Display

- the Liquid Crystal Display (LCD) has several

indicators that show the current operating mode. The
two digits at the right show the current selected
channel. The smaller, twolthree-Ietter displays show

which features are enabled.

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UH-O57

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TSQ

Tone Squelch Enabled

CAL

Appears when an incoming tone
code successfully opened the Tone
Squelch, or when TX Selcallcodes
are being transmitted.

PRI

PriorityChannel Selected

DUP

DuplexChannel Operation

Selected

La Low Power TX Selected

SCN

Scan feature enabled

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Battery Pack
Release Button

MONITOR SWitch

PTT

(Push-to- Talk)

Switch

TX POWER HI/LO

Switch

Side Controls and Connectors

Battery Pack Release Button - To remove the Battery
Pack, push up on the releasebutton and slidethe Battery

Pack away from the radio.
Monitor Switch - Press to set the Auto-squelch feature ON

or OFF.

Push-to- Talk (PTT) Switch - Press and hold to talk.

: Release to listen for a reply.

i TX Power HI/LOW Switch -Press to set the Transmit

output power to HIGH (5W) or LOW (1W).

AC Adaptor/Charger Jack - ConnectAC Adaptor/Charger
here

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UH-O57

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Speaker
Jack

4

Antenna

Built-In

Mic

Built-In

Speaker

Battery Pack
Release

Button

CDmm@

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Numeric Keypad

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Front Controls

Built-in Speaker -Audio Output

Built-in Microphone - Speak intothe microphone when

transmitting.

Speaker Jack - Connect optional external speaker here.

Microphone Jack - Connect optional external microphone
here.

Numeric Keypad - used for Direct Channel keying, en-
abling SELCALL Fun.ctions, selecting Priority Channel, and
programming SELCALL Codes.

UH-O57

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CD to <D

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Numeric Keypad Controls and Functions

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: NUMERIC Keys; Usedto selectchannels,

enter special Receiverrrransmit Codes and
other SElCAll Parameters

: ASTERISK Key; Press and hold for 1.5sec

to access Tone Period Programming

: Assigned as "0" tone when programming

RX ID,TX ID,or lead-In tone.

: HASH Key; Press and holdfor 1.5 sec to

enter lead-In Delay Programming

: Assigned as "F" tone when programming

RX ID,TX ID,or lead-In tone.

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UH-O57

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: ENTER Key; Pressto enter the selected

Channel;

: Press to store the

RXITXCode, lead-In

Tone, lead-In delay, and Tone Period

Setting when programming

: Press and holdfor 1.5sec to enter special

programming modes.

: Assigned as "E"tone when programming

lead-In Tone ONLY.

: TONE CALL Key; Press and hold for about

1.5secto transmit the transmitter ID (e.g.,
calling other radio by transmitting its
SElCAll ID)

: Assigned as "A"tone when programming

RX ID,TX ID or lead-In Tone.

: TONE SQUELCH Key; Press and hold for

about 1.5 sec to put the receiver on "Quite"
Mode.

: Assigned as "B" Tone when programming

RX ID,TX ID, or

lead-In Tone.

: PRIORITY Key; Pressthis keyto store or

removethe selected Priority channel tot
from the memory buffer.

: Assigned as "C"tone when programming

RX ID,TX ID, or lead-In Tone.

Note: When shipped fromthe factory,no SELCALLcodes

are stored in the memory. Errortone willbeheard

everytime @ or@ Key ispressed. Toprogram,

please see page 27.

UH-O57

See page 34 forNumericKeypad SELCALL Tone
Assignment.

Page 12

Getting Started

Antenna

To attach the antenna to the TNC connector on top of your
radio, press down and rotate the antenna base clockwise
until it seats firmly into place.

Battery Information

The Sundowner UH-O57 comes with a standard recharge-
able Ni-Cd Battery Pack. An optional heavy duty recharge-
able Ni-Cd Battery Pack is also available.

Installation

THE RECHARGEABLE NICKEL-CADMIUM BATTERY
PACK MUST BE CHARGED FULLY BEFORE USING IT
FOR THE FIRST TIME.

When installing or removing the rechargeable Battery Pack,
be sure that the power (ON/OFF Volume control) is turned

OFF.

To remove the Battery Pack, push up on the release button
and slide the Battery Pack away from the radio.
To replace, align the Battery Pack rails with the transceiver
and slide toward the transceiver unit until the Battery Pack
locks in place.

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UH-O57

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Recharging the Nickel-Cadmium Battery Pack

Note: Before charging, be sure that the power (ON/OFF

Volume control) is turned OFF.

Recharge the Ni-Cd Battery ONL Y when the unit
indicates a LOW BATTERY condition.

(TX LED blinks during TRANSMIT)

Insert the discharged Battery Pack in the rapid charger, or
connect the trickle charger to the side of the unit.

Using the trickle charger, the standard pack charges fully in
8 hours, and the heavy duty pack in 12 hours. If you have a
rapid charger, the standard pack charges fully in 1.5 hours,
and the heavy duty pack charges fully in 2 hours.

DO NOT leave the Batteries on charger for an extended
period of time.

Belt Clip Installation

Place the Belt Clip on the
mounting area on the back of
the Radio, making sure the

holes in the clip line up with
the threads in the back of the

Radio.

@ @

Insert the 2 screws into the

corresponding holes and

tighten.

BeltClip

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CAUTION:

DO NOT tighten the screws too tight, you could damage the

case.

UH-O57

Page 14

Operation

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RECEIVE

1. Turn the radioON. Rotate the

ON/OFFVolume control

clockwise until you hearthe click. A channel number
should appear inthe LCD Display.

UP DOWN

2. Press the 0 or 0 switch or use the Numeric Keypad

to select the desired channel.

3. Press the monitor switch (Auto-squelch turns OFF).

4. Rotate the ON/OFF Volume control to adjust the speaker
volume to a comfortable level.

5. Press the Monitor switch (Auto-squelch turns ON).

Direct Channel Keying

Allows you to directly select a channel usingthe Numeric
Keypad.

Example 1: Selecting CH5 directly

-Press<D then @ .

Example 2: Selecting CH25 directly

-Press <D, <D then @ .

Upon pressing the @ Key, the LCD display and the unit

channel setting changes to CH25.

Auto-Squelch

Automatically eliminates the unwanted "rushing" noise when

the unit is turned ON.

- press the Monitor Switch to set the Auto-squelch
feature ON or OFF

Note: Tolisten to weak signal transmissions, switch OFF

the Auto-squelch feature (Squelch is on minimum

level). .

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UH-O57

Channel Scan

UP

When you pressed the 0 Key for morethan 1.5 seconds,

the scan feature starts and the SCN indicator appears on
the LCD.

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Scanning stops automatically on any active channel that is
not Locked-out, receives a call and you hear the caller.

UP

To resume scanning, press the 0 Key.

If there is too much activity on a certain channel and you

wish to exclude it from being scanned, simply press the

uo

0 Key (please see page 18 on how to create a channel

scan list).

To disable scanning:

DOWN

- when on an active channel, press the 0 Key and

the unit stays on the active channel.

UP DOWN

- while scanning, press the 0 or 0 Key. The unit

returns to the channel where scan function is acti-
vated.

- press the PIT switch. When the unit is on an active
channel, it transmits on the same channel.

When scanning, the unit transmits on the channel
where scan function is activated.

SCN indicator disappears from the LCD Display.

Drop Out Delay

While scanning, the radio stops at a busy channel and
receives a transmission. When the received call is over, the

unit will wait for three seconds for the return of the signal.
Otherwise it resumes scanning.

UH-O57

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Priority Scan

When a priority channel is selected and scan is activated,

the radio will monitor the prioritised channel regularly for

activity while scanning.

While scanning, if a signal is received on the priority channel

the radio will stay on that channel as long as the signal is

present. Otherwise, priority scanning resumes after 3
seconds.

However, if scanning stops on a channel which is not a
priority channel, the radio will continue on checking regularly
the priority channel for activity while monitoring the current

active channel.

To select a priority channel:

1. Enter the selected Priority channel using the Numeric
Keypad.

Example: Selecting CH20 as Priority Channel

-Press <D, (])

2. Then press the @ Key.
After pressing the @ Key, the unit setting changes to

the selected priority channel and displays the PRI
indicator.

Note:

Setting a Tone Squelched Channel as a Priority
Channel is not possible. Any prioritised Channel
when programmed to "Oviet"Mode willoverride the

priority setting.

PriorityScanning is inactivein TSO Scan Mode.

To remove the Priority Channel setting

1. Manually or directly select the prioritised channel.

2. Momentarily press the @ Key. The PRI indicator
disappears from the LCD display.

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UH-O57

Create a Channel Scan List with Channel Lock-Out
Feature

You may have certain channels that you do not want to hear
every time you scan. These are channels that are busy in a
major portion of time, and the scanning stops at that
channel(s) often enough to interrupt the scan cycle. You
can Lock-out those channels so they are not scanned.

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There are two ways to do this.

UP DOWN

1. Usingthe 0 or 0 switches, manually select the

uo

desired channel and press the 0 button. The locked-

out channel blinks.

2. While scanning, when the unit stops on the channel you
wish to lock-out because of its too much activity, simply

uo

press the 0 Key and it will be automatically removed

from the scan list. Scanning resumes.

To remove the lock-out condition from a channel, manually

uo

select the channel and press 0 button again. The channel

stops blinking.

UH-O57

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TRANSMIT

1. The maximum transmit power output level of UH-O57is
5 watts.

To switch to Iow power, press the HI/LO switch. LO
appears on the LCD and the transmit power output level
is changed to 1 watt.

To switch back to High power, press the HI/LO switch
again. The TX power returns to high and the LO
indicator disappears from the LCD.

2. Before you transmit, listen for activity on the selected
channel.

3. When the channel is clear, press the PIT switch to
transmit. The TX LED comes on when you transmit.
Hold the radio with the microphone approximately two
inches in front of your mouth with the antenna at
approximately a 45-degree angle away from your head.
Speak in a clear, normal, conversational voice.

4. When you are finished speaking, releasethe PIT switch
and listen for an answer.

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UH-O57

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Simplex I Duplex Communication

Duplex Operation allows the Uniden Sundowner UH-O57 to

operate via a repeater station on Channels 1 through 8.
The set receives on these channels but transmits on

Channels 31 through 38 respectively.

When Duplex operation is disabled, the set receives and

transmits on the same channel. (Simplex Communication)

To activate Duplex operation on a Channel where Repeater
Service is available, select the channel and then press the

DUP

0 button. DUP indicator appears on the LCD Display.

To put the Duplex programmed channel back to. normal

DUP

Simplex operation, select the channel and press the 0

button again. DUP indicator disappears from the LCD

Display. -

Low Battery Level Detection

Uniden Sundowner UH-O57 has a built-Jn battery level
detector circuit. It evaluates your Battery Pack everytime
you transmit to determine whether the power inside the
Battery is stili sufficient enough to support normal Receive

and Transmit communications.

The circuit will inform you in two ways.

1. When the PTT switch is pressed and the TX LED blinks.
It means the battery level is already Iow and needs
recharging. You can still transmit, however, you must

finish the conversation and have your battery charged
fully to resume normal operation.

2. When the Blinking TX LED went unnoticed and the
Battery goes down to where normal communication can
no longer be supported, the circuit will disable the PTT
switch and emit an error tone every time you try to

transmit. Have the battery pack charged fully.

UH-O57

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Special Feature

SELECTIVE CALLING

Selective Calling (SELCALL) is a special Sequential Tone
Squelch System that allows the user to receive/transmit
calls selectively fromlto an individual or a group, on a

shared busy channel.
The Sundowner UH-O57 has Selective Calling (SELCALL)

system specially built-in. With exceptional features like

Receiver Quieting, Group Calling, and User Programmable
Parameters makes the Sundowner UH-O57 superior to any

of its kind.

Receiver Quieting (Tone Squelch)
When enabled, it automatically mutes the receiver audio
circuit of the Radio. It will stay on its "Quiet Mode", as long
as the required SelcaU tone code (SELCALL ID) to open the
muting circuit is not received.

Tone Squelch Scanning

Scans Tone Squelched Channels only.
Group Calling Capability

Transmits and Responds to Group Calls.

User-Programmable SELCALL Parameters
Gives the userfreedom to program and configure the
SELCALL parameterfor efficient Selective Calling communi-

cation.

Page 21

UH-O57

SELCALL OPERATION
Receiver Quieting

Putsthe receiver on "Quiet" Mode (also known as "Tone

Squelch" Mode). When enabled,the radio prevents any
unwanted conversations inthe channel from being heard

unlessthe call is specificallydirected to you and the
required SELCALLIDto open the "Quiet"condition is

received.

To enable:

1. Select the channel you want to put in Quiet Mode using
either the UP/DOWN Switch or the Numeric Keypad.

Example: Choosing CH20 as your CALLChannel

[

LO

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0

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2. Press the @ Keyfor about 1.5 seconds. You will hear
one beepand the TSQ inaicator appears 00 the LCD

Display.

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LO

2..

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: e

Under this condition, the PTT Switch is temporarily disabled.
If you wish to use the same channel for normal communica-

tion, simply remove the Channel from Quiet Mode.

To deactivate the Quiet Condition:

1. Manually select the Tone Squelched Channel

2. Press the @ Key for about 1.5 seconds. Two beeps
will be heard and the TSQ indicator disappears from the

LCD display.

UH-O57

Page 22

Whena call is received...

While on TSO Condition, when UH-057 receives a code

matching your SELCALL ID, it will do the following opera-

tion.

1. Automatically responds to the caller by transmitting
Acknowledge tones.

2. Informs you that a caller is on the channel by emitting a
CALL ALARM (three successive tones in a regular
interval for 10 seconds.) and displays the CAL indicator.

3. Flashes the TSO indicator for about 20 seconds allowing
you to use the PTT Switch. If you will not be able to

respond within the 20 second period, TSO stops flashing

and Ouiet operation resumes.

Responding to a call automatically removes the channel

from "Ouiet" operation. The TSO and CAL indicators

disappear from the LCD display.

Tone Squelch Scanning

If you are using two or more channels on TSO Mode, you
can monitor all of these channels for selective calls by using
the TSO Scanning.

To use this feature:

1. Select any programmed TSO Channel.

UP

2. Press and hold the 0 switch for about 1.5 seconds.

TSO scanning starts and the SCN indicator appears on
the LCD display.

Unlike Normal Scanning, TSO Scanning checks the

detected carrier for SELCALL information. If no information

is seen, TSO scanning resumes.

Page 23

UH-O57

~

When a call is received while TSQ Scanning, UH-057
follows the same response as receiving a call on a Tone

Squelch Channel. It differs only on the following.

1. If the call is not answered within the 20 second period,
TSQ Scanning resumes. CAL indicator remains on the

LCD.

To look for the channel where CALL is received:

UP

a. Cancel TSQ Scanning by pressing either the 0 or

DOWN

0 Key.

UP DOWN

b. Usingthe 0 or 0 Key, browse through the TSQ

Channels.

The CAL indicator marks the channel where the call is
received.

2. When answered, TSQ scanning is automatically
deactivated. The channel is removed from the Quiet

Operating Mode.

To deactivate TSQ Scanning:

UP DOWN

1. Press either the 0 or 0 Key. SCN indicator disap-

pears from the LCD and the unit returns to the Ch.annel
prior to accessing TSQ Scanning.

2. When a SELCALL is received, press the PIT Switch.

Note: The chance of receiving and decoding Selcall Call

effectively while TSQ Scanning can be increased in
many different ways. You can either lessen the
number of channels to be scanned to increase the

scanning speed, or change some of the SELCALL
Parameters (please see "Otherparameters" on page

30). BE SURE THAT EVERY MEMBER OF YOUR
GROUP USES THE SAME SET-UP. OTHERWISE,

YOU WILL LESSEN THE CHANCE OF SELEC-
TIVELY CALLING EACH OTHER.

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UH-O57

Page 24

Tone Calling

Tone calling enables you to selectively call other radios.

To do this, the SELCALL ID of the radio you are going to
call should be in the Transmitters SELCALL ID memory
(please see Programming Method on page 28).

To Call:

1. Select the channel where you and your group agreed to
use for Selective Calling.

2. Press and hold the @ Key for about 1.5 seconds.

One Long Beep will be heard and CAL indicator will
appear on the LCD Display while the SELCALL ID is

being transmitted automatically.

An acknowledge tone coming from the called radio will be
received if you had successfully made contact.

The Acknowledge Tone for the Sundowner UH-057 is a
successive three Low Tone beeps.

Group Calling
Sundowner UH-057 has group calling capability. It can

either respond to a group call or transmit a Group Calling
Code.

Group Calling enables you to call members of your group
simultaneously. However, you need to follow a certain

format on programming your TX SELCALL ID to do this.

TX SELCALL ID Format

To call

Transmitter SELCALL ID

10 radios

100 rad ios
1000 radios
10000 radios

[x] [x] [x] [x] [A]
[x] [x] [x] [A] [A]
[x] [x] [A] [A] [A]
[x] [A] [A] [A] [A]

Page 25

UH-O57

"'-

where: [x] is a common SELCALL ID prefixes of your group

and,

[A] is the internationally assigned SELCALL tone to

identifythe Group Call Code

example:

If one group comprises of 1D members with SELCALL
10s.

ranging from

[1] [2] [3] [4] [D],
[1] [2] [3] [4] [1],
[1] [2] [3] [4] [2],
[1] [2] [3] [4] [3],

to

[1] [2] [3] [4] [9],

All in TSO Mode at CH2D

If someone transmits [1] [2] [3] [4] [A] on CH2D, all of the

above unit will open their Tone Squelched Receiver.

Note: No Acknowledge tone will be received when Group

Call code is transmitted. If all radios will respond,

acknowledge tone will only "litter" the channel with

crisscrossing signal.

To use the Group Calling Feature effectively, your RX
SELCALL ID should be well arranged and assigned.

UH-O57

Page 26

Programming

Since UH-O57 can support either 5 tone or 6 tone signalling
format, you and your group must decide which format are
you going to use.

Receiver SELCALL ID

To program your own receiver SELCALL ID, do the follow-
ing procedure.

1. Press and holdthe @ Key for about 1.5seconds.
Two beeps will be heard and the LCD displ~ys:

[

--]

2. Press the @ Key. The TSQ indicator appears on the
LCD Display. Flashing.

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q~:-

, I '

GIlD -

3. Enter your chosen SELCALL ID usingthe Numeric

Keypad.

Example: 12345

Every time you press the Numeric Keypad confirmation

tones will be heard. The SELCALL Tone assigned to the

pressed Key will be displayed on the LCD as shown:

(please see page 34 for the Numeric Key SELCALL

TONE assignment)

Page27

UH-O57

CD

1 -I I

CD

1 -2]

<D

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t aD J

<D

CD

1: S1

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4. Press the (@) Key to complete the programming.
Two beeps will be heard and the unit returns to its
previous status prior to accessing Programming Mode.

If you decided to use the 6 Tone Format, simply enter the

sixth digit when programming before pressing the(@) Key.

To remove the Receiver SELCALL ID from Memory:

1. Follow step 1 and 2 of Receiver SELCALL ID program-
ming.

2. Pressthe @}) Key.

Programming ends and no ID will be stored in the
memory. Whenever the @ Key is pressed, error tone

will be heard.

Note: If you made an error in entering the ID, you must

abort the SELCALL programming and start over

again. To abort, press any key or switch not related

to SELCALL PROGRAMMING (e.g., PTT Switch, UP
Key, HI/LOW Selector Switch... etc.)

Transmitter SELCALL ID

This ID is the Identification Code of the radio you want to
call. To program, do the following procedure.

1. Press the hold the @}) Key for about 1.5 seconds.
Two beeps will be heard and the LCD displays:

[ --]

2. Press the @ Key. The CAL indicator appears on the
LCD Display, and flashing.

, I /

CAL":.

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CIIi:D-

UH-O57

Page 28

3. Enter the Transmitter SELCALL ID using the Numeric
Keypad.

Example: 1 2346

Everytime you press the numeric Keypad, confirmation

tones willbe heard. The SELCALL Tone assigned to the
pressed Keypad willbe displayed on the LCD as shown:

(please see page 34 for the SELCALL TONE Key
Assignment)

4. Press the @ Keyto complete the programming.
Twobeeps willbe h1eardand the unit returns to its

previous status priorto accessing ProgrammingMode.

Ifyou and yourgroup are using the 6 Tone Format, simply

enter the sixthdigitbefore pressing the@ Key.
To remove the Transmitter SELCALLIDfrom memory:

1. Followsteps 1 and 2 of TransmitterSELCALLID

programming. .

2. Press the @ Key.
Programmingends and no IDwillbe stored inthe

memory.Whenever the @ Keyis pressed, error tone
willbe heard.

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UH-O57

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tcAL-1/ I,

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!CAL

-2

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CD

'tCAL

-3

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CD

f'/

-Y

CAL

/ I ,

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CD

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-6

CAL

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Other SELCALLParameters.

Aside from the Transmitter and Receiver ID, you should also

know some of the SELCALL Parameters. Though, this
parameters are not frequently changed understanding them
will probably help you on your future use.

Tone Period

Tone Period is the duration of one tone in a SELCALL ID
sequence. The setting of this parameter depends on your

application. On long distance communication for example,
where the signal strength of the transmitted information is
greatly reduced and affected by noise, it is more advisable
to use longer Tone Period. Long Tone Period gives the

decoder more time and information to check and evaluate
the code.

However, BE SURE THAT ALL RADIOS IN YOUR GROUP

USES THE SAME TONE PERIOD SETTING. Otherwise
you will not be able to selectively call one another.

Sundowner UH-057 allows you to select which tone period
is best for you. It offers the four most commonly used tone
period setting (20, 40, 70 or 100 mSec). Giving you the
freedom to change this parameter, you can adapt easily to
the existing system in your group without the inconvenience
of having it serviced by the dealer.

To change the tone period setting,

1. Press the @ for about 1.5 seconds. The LCD displays:

[ P-]

2. Select your chosen Tone Period setting from the table
below.

UH-O57

Page 30

Key LCD Display

Tone Period

0

PO 20 mSec

1

P1 40 mSec

2

P2 70 mSec

3

P3 100 mSec

For example, selecting 40 mSec
Press CD. The lCD displays

PI ][

3. Press the @ Keyto complete the programming.
Two beeps will be heard and the unit returnsto its
previous status prior to accessing Programming Mode.

Lead-In Delay

lead-In delay is a SElCAll transmit parameter that

"wakes-up" and helps the receiver of the other radio to lock
onto the incoming signal. Every time you Transmit a
SElCAll ID, lead-In Delay attaches itself in the beginning
of the code sequence and makes the transmitter to be ON
longer prior to the code transmission. This sets the commu-

nication link between the transmitter and the other receiver
more stable.

One major application of having a longer lead-In Delay is
when you are Selectively Calling another radio via a

repeater station. long lead-In Delay helps to stabilise both
the communication link from your radio to the repeater
station and the communication link from the repeater to the

other radio.

To change the lead-In Delay of your radio:

1. Press the (i) for about 1.5seconds.The lCD displays:

[

L-]

Page 31

UH-O57

2. Select your Lead-In Delay setting from the table below.

For example, selecting 1.0 Sec as Lead-In Delay
Press <D. The LCD displays

[

LI ]

3. Press the @ Keyto complete the programming.
Two beeps will be heard and the unit returns to its

previous status prior to accessing Programming Mode.

Lead-In Tone

The Lead-In tone when programmed "rides" on the Lead-In
Delay. Hence, when transmitting a SELCALL ID a continu-
ous tone will be heard by the receiver in the duration of the
Lead-In Delay.

Lead-In Tone's main purpose is to increase the probability
of contact between your unit and the other radio WHEN

TSQ SCANNING.

Normally on TSQ Scanning, if a carrier is detected and the
unit sees no SELCALL information on its first "glance" at the
particular signal, scanning resumes.

But if the Lead-In Tone is present, the unit waits further until

the SELCALL ID is received.

UH-O57

Page 32

Key LCD Display

Lead-In Delay

Period

0 LO

0.5 Sec

1

L1 1.0Sec

2

L2 2.0 Sec

3

L3

3.0 Sec

4

L4

4.0 Sec

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To program:

1. Press the @l) Key for about 1.5 sec.
Two beeps will be heard and the lCD displays:

[ --]

2. Press the @ Key. The PRI indicator appears on the
lCD display and flashing.

, I I"

PAl -

...I I ..

8:»..

3. Select the lead-In Tone you want to use.

Example:

Selecting the Tone assigned to digit 1.

Press (D. The lCD displays:

-

,I I"

PAI-

I ..

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3. Pressthe@l) Key to complete the programming.

Two beeps will be heard and the lCD returns to its

previous status prior to accessing Programming Mode.

To remove the lead-In Tone:

1. Follow steps 1 and 2 of lead-In Tone Programming.

2. Press and hold @l) Key for about 1.5 sec until you hear
the two beeps. the lCD will display "E" Tone but it will

not be programmed to the memory.
Be careful not to press the @l) key twice.

Otherwise, "E" tone will be programmed as your lead-In
Tone.

Note: Make sure that all members of your group will use

the same Lead-In Tone. Else, you will lessen the
probability of receiving and successfully decoding a

se/call call while TSQ Scanning.

Page 33

UH-O57

,_.

Programming Guide

Keypad Assignment when Programming

Key

*

TC

Tone

0

1
2
3
4
4
6
7
8
9

A

B

C
D

F

TS

Tone

0

1
2
3
4

4
6
7
8
9

A
B
C

0
1

2
3
4
4
6
7
8
9

TC
TS
PR

EN

#

D
F

lead-In

Tone

0
1

2
3
4
4
6
7
8
9

A

B
C
E
D
F

Default Setting (Factory Default)

A. RX SelcalllD: None
B . TX SelcalllD: None
C. Tone Period: 40 msec

D. lead-In Delay: 500 msec

E. lead-In Tone: Tone"1"

lead-In

Delay (S)

0.5

1.0

2.0

3.0

4.0

Tone

Period (mS)

20
40
70

100

IMPORTANT:

BESURETHATTHETONEFORMAT(5TONEOR6

TONE), TONE PERIOD SETTINGAND THE LEAD-IN
TONE OF ALL THE RADIOS IN YOUR GROUP ARE ALL
THE SAME. ELSE, YOU WILL NOT BEABLE TO
SELECTIVELY CALL ONE ANOTHER EFFECTIVELY.

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Page 34

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Care and Maintenance

Your Unlden Sundowner UH-O57 is a precision piece of
electronic equipment and you should treat it accordingly.
Due to the rugged design, very little maintenance is re-
quired. However, a few precautions should be observed:

.

If your radio has been accidentally subjected to spray or

splash, you should immediately wipe it down with a soft
cloth dampened with fresh water.

If the antenna has been damaged, you should not
transmit except in case of emergency. A defective

antenna may cause damage to your radio.
You are urged to arrange a periodic performance check

with your Unlden Dealer.

.

.

Operator Troubleshooting

Should the unit malfunction or notperform properly, the
operator should perform the procedures indicated below.

1. If the transceiver is completely inoperative.

. Check the Battery

2. Iftrouble is experienced with receiving.
* Check if the Radio is Switched-On

* Check the VOLUME control setting
* Check ifthe antenna is securely connected to the

antenna connector

3. Iftrouble is experience with transmitting.
* Check if the antenna is securely connected to the

Antenna Connector

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UH-O57

Service

Should you find it desirable or necessary to have service
performed on your Uniden Sundowner UH-O57, you are
urged to contact the Uniden Dealer from whom you made
your purchase. Your Uniden Dealer will be able to assist
you with complete service information.

If you require service that is within the terms of your
warranty, you should present a copy of your receipt to your
dealer to authenticate your claim.

If you find it inconvenient to obtain service assistance from

your dealer, you may obtain service from Uoiden Service

Division. If you want this service, please pack your radio in
a suitable container that will provide adequate protection.

Enclose a note describing the problem and a copy of your

receipt and send the radio (transportation prepaid) to:

-

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un. enAustralia Pty. Limited

SERVICE DIVISION

345 PrincessHighway,

Rockdale, NSW 2216

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Page 36

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UHF CB CHANNEL INFORMATION

SIMPLEX Operating Mode

Channel

Transmit Receive

Assignment Frequency(MHz)

Frequency(MHz)

1 476.425 476.425
2 476.450 476.450
3 476.475

476.475

4 476.500

476.500

5

476.525

476.525

6

476.550 476.550

7

476.575 476.575

8

476.600 476.600

9 476.625

476.625

10

476.650 476.650

11

476.675 476.675

12 476.700

476.700

13

476.725 476.725
14 476.750 476.750
15 476.775

476.775

16 476.800

476.800

17 476.825

476.825

18

476.850 476.850
19 476.875 476.875

20 476.900

476.900

21 476.925

476.925

22

476.950 476.950

23

476.975 476.975

24

477.000 477.000

25

477.025 477.025

26

477.050 477.050

27

477.075

477.075

28

477.100 477.100

29 -477.125

477.125

30

477.150 477.150

31

477.175 477.175

32 477.200 477.200
33

477.255 477.255

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UH-O57

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SIMPLEX Operating Mode (Cont...)

DUPLEX Operating Mode

UH-O57

Page 38

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Channel Transmit

Receive

Assignment Frequency(MHz)

Frequency(MHz)

34

477.250 477.250

35 477.275

477275

36

477.300 477.300

37 477.325

477.325
38 477.350 477.350
39 477.375

477.375
40 477.400

477.400

Channel Transmit Receive

Assignment Frequency(MHz) Frequency(MHz)

1

477.175 476.425

2

477.200 476.450

3 477.225

476.475

4

477.250 476.500

5

477.275 476.525.

6

477.300

476.550

7 477.325 476.575

8 477.350 476.600

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Specifications

GENERAL
Channels

Freqwency Range
Communication Mode

CH 1 to CH8
CH9 to CH40

Frequency Control
Controls

Buttons

Status Indicator

Channel Display
Connectors

Size

Weight

Power Requirements

Antenna Impedance

Microphone
Speaker
Operating Temperature

Range

Shock and Vibration
SMA Approvals

: 40
: 476.425MHz to 477.4MHz

: Simplex / Duplex
: Simplex

: Phase Locked Loop (PLL)
: On/Off Volume Control,

On/Off MonitorSwitch

HI/LOW TX Power Switch

: UP Key, DOWN Key, UO Key,

DUPLEX Key

: TX LED at PTT On: RED

Continuous: Transmitting
Flashing: TXlLow Battery

TX LED at PTT Off : GREEN

Lights ON : Busy Channel

: TSQ (ToneSquelch)

CAL (Call Receivedor

Transmitting Tones)
PRI (Priority CH Selected)
SCN (Scanning),
LO (Low TX Power Selected)
DUP (Duplex Communication)

: LiquidCrystal Display

(LCD, Dual 7 Segment)

: Antenna, External Speaker

External Microphone
AC Adaptor/Charger

: 62mm W x 37mm Lx 150mm H
: 390g.

: 7.2V DC
: 50 ohms, nominal

: Built-in Electret type
: 8 ohms, 0.5W

: O°Cto +55°C
: Meets or Exceeds EIA Std.

RS152B and RS204C

: Type accepted under MS250

Page 39

UH-O57

Transm itter

Power Output

HI
lOW

Modulation
Frequency Tolerance

at 25°C

Mic. Sensitivity

at :t3kHz Dev.

Hum and Noise

(300Hz, 3kHz BPF)
(750jlS DeEmp) : 40dB

Modulation Frequency Response

at 1kHz:t1 kHz Dev.

500Hz

2000Hz

Current Drain

at HIGH Power

Receiver
Sensitivity

at 12dB SINAD

Squelch Sensitivity

: 4W (nominal), 5W (max.)
: 1W (nominal)
: F3E, :t5kHz Deviation

: :t300 Hz (nominal)

: 4.5mV (nominal)

: -6dB
: +7dB

: 1800mA

: 0.35jl V (nominal)
: 0.20jl V (nominal)

(Auto-squelch: ON)

Audio-Frequency

Response (ret: 1kHz, :t3kHz Dev.)

500Hz :+6dB

2000Hz :-7dB

Total Harmonic Distortion

at Standard AF Output

(50mW at 4 ohm load)

:3%
: 40dB

Hum and Noise
Adjacent Channel

Selectivity

at :t25kHz

Image Rejection Ratio
IF Rejection Ratio

Current Drain

Max Volume

Squelched

: 60dB
: 45dB
: 55dB

: 250mA
: 50mA

SELCALL

Standard : CCIR International
Encode/Decode Format

: 5 or 6 Tones
: 0-9, A-D, F

: 0-9, A-D, F
: 20,40,70,100 mSec
: 500 mSec, 1,2, 3, 4, Sec
: 0-9, A-F

Transmit Tones
Receive Tones
Tone Periods

lead-In Delay
lead-In Tone

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Page 40

WARRANTY

Uniden Sundowner UH-O57Handheld UHFCB Radio

Australian 1 Year Warranty

Note: Please keep your sales docket as it provides evidence of

warranty.

WARRANTOR: Uniden Australia Pty. Limited ACN 001865498

ELEMENTS OF WARRANTY: Uniden warrants to the original retail
owner for the duration of this warranty, its Sundowner UH-Q57 Handheld

UHF CB Transceiver Radio (hereinafter referred to as the Product), to
be free from defects in materials and craftsmanship with only the

limitations or exclusions set out below.

WARRANTY DURATION: This warranty to the original retail owner
only, shall terminate and be of no further effect ONE (1) Year after the
date of original retail

sale. This warranty will be deemed invalid if the

product is; (A) Damaged or not maintained as reasonable and
necessary, (B) Modified, altered or used as part of any conversion kits,

subassemblies, or any configurations not sold by Uniden, (C) Improperly
installed, (D) Repaired by someone other than an authorized Uniden

Repair Agent for a defect or malfunction covered by this warranty, (E)

Used in conjunction with any equipment or parts or as part of a system
not manufactured by Uniden, (F) Installed, programmed or serviced by
anyone other than an authorized Uniden Repair Agen!, (G) Where the

Serial Number label of the product has been removed or damaged

beyond recognition.

PARTS COVERED: This warranty covers for 1 year, the Sundowner

UH-057 Handheld UHF CB Tranceiver Unit only. All accessories, NICAD
Battery, AC AdaptorlBattery Charger, Antenna, Belt Clip, Wrist Strap are

coveredfor 90days. .

STATEMENT OF REMEDY: In the event that the product does not
conform to this warranty at any time while this warranty is in effect, the
warrantor at its discretion, will repair the defect or replace the product

and return it to you without charge for parts and service.
THIS WARRANTY DOES NOT COVER OR PROVIDE FOR THE

REIMBURSEMENT OR PAYMENT OF INCIDENTAL OR CONSE-
QUENTIAL DAMAGES.

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WARRANTY CARD: if a warranty card has been included with this

product then please fill it in and return it to us within 14 days of

purchase. Your name and serial number of the product will then be

registered in our database and this will help us process your claim with

greater speed and efficiency should you require warranty service.

PROCEDURE FOR OBTAINING PERFORMANCE OF WARRANTY: In

the event that the Product does not conform to this warranty, the

Product should be shipped or delivered, freight pre-paid, with evidence

of original purchase, (eQla copy of the sales docket), to the warrantor

at:

UNIDEN AUSTRALIA PTY. LIMITED

SERVICE DIVISION

345 Princes Highway, Rockdale, NSW 2216

Ph l02)

599 3100 FAX [phone]

Customers in other States should ship or deliver the Product

freight pre-paid to their nearest Uniden Authorized Repair Centre.

(Contact Uniden for the nearest Warranty Agent to you)

J

-.-.

UNIDEN AUSTRALIA PTY. LTO.
345 Princes Highway. Rockdale. NSW 2216
Ph [phone] FAX [phone]

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Printed In the Philippines