UH044SX
Operating Guide
UHO44SX
MENU
CALL
ENTER
TX
PWR
MEM
SCAN
DUAL
UNIDEN Model uh044sx UHF CB Radio
CONTENTS
Introduction
Features........................................................................................3
Controls & Indicators ..........................................................................4
Included in Your uh044sx Pack ..........................................................6
Getting Started
Battery Installation.......................................................................7
Charging Batteries.......................................................................8
Battery Life ............ .....................................................................8
Battery Level Display ..................................................................9
Low Battery Alert .......................................................................10
Wrist Strap..................................................................................10
Operation
Power On/Off..............................................................................11
Volume ........................................................................................11
Setting the Squelch ...................................................................11
Selecting a Channel...................................................................12
To Transmit and Receive...........................................................12
To Operate in Duplex Mode (Repeaters)..................................13
Transmit Power Select ..............................................................14
Scanning ....................................................................................14
Open Scan Mode................................................................15
Group Scan Mode ..............................................................16
Priority Channel .................................................................17
Programming Scan Channels...........................................17
Drop-Out Delay ..................................................................18
Dual Watch ............. ...................................................................18
Monitor........................................................................................18
CTCSS.........................................................................................19
DCS .............................................................................................19
VOX .............................................................................................20
Room Monitor ............................................................................20
Call Tone.....................................................................................21
Busy Channel Lockout..............................................................22
Roger Beep.................................................................................22
Key Beep .................. ................................................................22
Keypad Lock...............................................................................22
Power Save.................................................................................23
Back Lighting.............................................................................23
UHF CB Channels & Frequencies ....................................................24
CTCSS & DCS Code List ...................................................................25
Warranty .............................................................................................26
2
UNIDEN Model uh044sx UHF CB Radio
INTRODUCTION
The uh044sx UHF CB radio is compact, rugged and fits easily in
your hand. This hand held UHF radio will give you consistent,
outstanding performance in virtually all conditions and situations.
To ensure that you get the most from the uh044sx's features,
please read this operating guide carefully before using the unit.
FEATURES
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Transmit and receive FM 40CH (UHF-CB 40CH)
TX output power 100mW / 0.5W / 2.0W
Up to 10 km + range*
LCD display
Battery level indicator
Auto battery save
Channel select
LCD back light
Monitor
Room monitor
Dual watch
Group Scan with Priority CH Watch
Open Scan
OS/GS Scan separately Channel Memory
Selectable scan direction upward or downward
Priority CH select
Duplex capability
5 Level VOX (Voice Activated Function)
5 Level Room Monitor transmission threshold
Selectable 3 squelch position
(”1” = threshold, “2” = middle, “3” = tight)
Busy CH Lock-Out Function
5 different CALL tone
Roger beep
Key beep On/ Off
Keypad lock
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38 Built in CTCSS (Continuous Tone Coded Squelch System) codes
and 104 DCS (Digital Code Coded Squelch System) codes are
selectable
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Volume and Power On/OFF Control Knob
External Speaker / Microphone capability
*Range varies depending on the environment. 10km + range is noted in
a flat open environment.
3
UNIDEN Model uh044sx UHF CB Radio
CONTROLS & INDICATORS
SPKR/MIC
UHO44SX
MENU
CALL
ENTER
SCAN
TX
PWR
MEM
DUAL
4
UNIDEN Model uh044sx UHF CB Radio
CONTROLS & INDICATORS
Q
P
O
M
K
N
L
A. Transmit
B. Room Monitor
C. Busy
J. Memory
K. Priority
L. Squelch
D. Voice Activation
E. Key Lock
F. Battery Level Indicator
G. DCS/CTCSS Indicator
H. DCS/CTCSS code
I. Channel Number
M. Dual Watch
N. Group Scan
O. Busy Channel Lockout
P. Scan
Q. Power Level Indicator
(High/Low)
1. Charge Jack
2. EXT. SPKR/MIC Jack
3. On/Off Volume
4. LCD Display
5. Up Button
11. Transmit Power
Select/Keylock
12. Call Tone
Transmit/Memory
On/Off Button
6. Down Button
7. Microphone
8. Speaker
9. Menu/Enter Button
10. Scan Mode/Dual
Watch Button
13. PTT (Push-to-talk)
Button
14. Monitor Switch
15. Belt Clip
5
UNIDEN Model uh044sx UHF CB Radio
INCLUDED IN YOUR UH044SX PACK
AC Adaptor
AAD-044SX
External Speaker
Microphone (SM-060)
3x AA NiMH batteries
If any of these items are missing from the box,
contact your Uniden Dealer.
Optional Accessories
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Earpiece/Microphone (EM-060)
Voice Activated (VOX) Headset (VM-041)
Leather Case (LC-040)
Commercial Quality Speaker Microphone (SM-060CQ)
Commercial Quality Dual Earmuff (HM-064CQ)
Commercial Quality Air Tube (EM-064CQ)
Commercial Quality Referee's Kit (RK-060CQ)
Commercial Quality Rubber Car Hook (EM-060CQ )
Commercial Quality Speaker Headset (HM-060CQ)
6
UNIDEN Model uh044sx UHF CB Radio
GETTING STARTED
BATTERY INSTALLATION
Your uh044sx pack includes 3 AA rechargeable NiMH
batteries to power the uh044sx. You must install and then
charge the batteries for 14+ hrs before use.
The uh044sx can also use 3 AA Alkaline batteries.
Do not mix old and new batteries to avoid
damage to the unit.
To install the batteries:
1. Make sure your radio is off.
2. Release the battery cover clip,
then remove the battery cover.
3. Insert 3 AA rechargeable NiMH
batteries according to the
polarity symbols inside the
battery compartment.
4. Align the battery cover tabs
with the uh044sx tab holes
then replace the cover.
7
UNIDEN Model uh044sx UHF CB Radio
GETTING STARTED
CHARGING BATTERIES
Warning Notice! Use only
the supplied ADD-044SX
power adaptor if rechargeable
batteries will be used in
the uh044sx. The Transmit is
disabled during charging.
!
Turn the uh044sx knob
[ON/OFF VOLUME] off and
connect the AC adaptor plug
to the charge jack.
Battery charging times vary. A
longer time is required to
charge higher capacity
batteries.
Rechargeable Batteries Charging Time
1500mAH Ni-MH 10 hrs
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Disconnect the AC adaptor from the unit when charging is
completed.
BATTERY LIFE
Duty cycle: TX 5% - RX 5% - STANDBY 90 %
60hrs typ.(AA SIZE ALKALINE)
35hrs typ.(AA SIZE 1500mAH Ni-MH)
Condition measured:
Volume Level at rated power (50mW @ 8Ohm)
Transmit Level; LO
8
UNIDEN Model uh044sx UHF CB Radio
GETTING STARTED
BATTERY LEVEL DISPLAY
The
icon in the upper right hand corner of the screen
indicates the uh044sx current battery voltage level at all times.
The battery level is displayed in 4 levels:
LEVEL 1
Battery 100% full
LEVEL 2
Battery approx
30% capacity
LEVEL 3
Battery approx
15% capacity
LEVEL 4
Almost Empty
When SW is pressed at Level 3, the PTT Error
Tone will be heard and the channel number will flash.
9
UNIDEN Model uh044sx UHF CB Radio
GETTING STARTED
LOW BATTERY ALERT
The LCD on your radio shows a battery
meter in the upper right corner.
icon indicates a fully powered
unit. As the batteries lose power,
will flash.
The LCD display will turn off after 30sec. An error tone will sound
if any key is pressed.
Recharge the NiMH batteries or replace the Alkaline batteries
immediately to continue using the radio.
WRIST STRAP
1. Insert short end of the strap
through the belt clip hole.
2. Slip the long end through the loop
to enclose the clip in the strap and
pull tight.
10
UNIDEN Model uh044sx UHF CB Radio
OPERATION
POWER ON/OFF
To turn the unit
ON, rotate the [ON/OFF
VOLUME] clockwise until a
“click” is heard. A channel
number and battery level
should appear on the display.
To turn the unit OFF, rotate the
[ON/OFF VOLUME] knob
counter-clockwise until a “click”
is heard. The display will
disappear.
VOLUME
Turn the [ON/OFF VOLUME] control clockwise to increase the
volume, counter-clockwise to decrease the volume.
SETTING THE SQUELCH
The squelch is used to eliminate any annoying background
noise when there are no signals present.
1. Press MENU seven times.
The current setting will flash.
ENTER
2. Press
,
to select desired squelch setting.
SQL-1 : Max sensitivity (Threshold)
SQL-2 : Med sensitivity
SQL-3 : Min sensitivity (Tight)
MENU
3. Press and hold
to save setting and exit.
ENTER
11
UNIDEN Model uh044sx UHF CB Radio
OPERATION
SELECTING A CHANNEL
Press
channel.
or
to select the desired
MENU
ENTER
CALL
MEM
If you press and hold the
or channel numbers
will scroll rapidly.
TX
PWR
SCAN
DUAL
TO TRANSMIT AND RECEIVE
The uh044sx uses the 40 UHF-CB Channels. For your reference
a list of the available channels and corresponding frequencies is
printed on page 25. (Channels 22 and 23 are for telemetry and
telecommand applications. Transmit is inhibited on these
channels).
1. The maximum RF transmit power
of uh044sx is 2 Watts.
2. Before you transmit, listen for
activity on the selected channel.
3. When the channel is clear, press
MENU
CALL
ENTER
TX
PWR
and hold the to transmit.
TX appears on the LCD.
MEM
SCAN
DUAL
Hold the radio with microphone approximately 5 cm in front of
your mouth with the antenna at approximately 45° angle away
from your head. Speak in a clear, normal conversational voice.
4. When you have finished
speaking, release the
and
listen for a response then TX
disappears on the LCD.
BUSY appears while receiving a signal.
12
UNIDEN Model uh044sx UHF CB Radio
OPERATION
TO OPERATE IN DUPLEX MODE (REPEATERS)
The Duplex function enables you to access local repeater
stations.
You can only activate Duplex on CH01-CH08.
UHF CB Repeaters are used to retransmit or relay your signal.
Repeaters will extend the range of your radio and overcome the
shielding effect caused by solid obstructions.
Eg. CH01 is being used in your area for
repeater use.
MENU
1. Press
one time.
ENTER
dP will flash.
2. Press or to change the selection.
r appears when duplex is selected.
MENU
3. Press and hold
to save and exit.
ENTER
Contact your retailer for a list of repeaters available in
your area.
Operation with the aid of a Repeater
13
UNIDEN Model uh044sx UHF CB Radio
OPERATION
TRANSMIT POWER SELECT
The uh044sx has three transmit power levels: 2 Watt, 0.5 Watt
and 0.1 Watt. To change your transmit power level:
1. Press
while in the 'power middle level' to change to
while in the 'power high level' to change to the
'power high level.'
2. Press
'power low level.'
3. Press
while in the 'power low level' to change to
'power middle level.'
TX Power Low
TX Power Middle
TX Power High
Transmitting on a higher level will use more Battery
power but will enable you to transmit further.
SCANNING
The uh044sx has two types of scanning; Open Scanning (OS)
and Group Scanning (GS), OS Scan searches all the channels
and frequencies in its memory continuously. GS Scan has the
ability of monitoring a priority channel every 1.5 seconds while
searching channels and frequencies in its memory.
Scanning allows you to search for active
channels programmed in the OS or GS
memory.
To initiate scanning,
1. Assuming the unit is on CH01 when
switched on.
2. Press and scanning starts.
Scan icon flashes during scanning.
MENU
CALL
ENTER
TX
PWR
MEM
SCAN
DUAL
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UNIDEN Model uh044sx UHF CB Radio
OPERATION
OPEN SCAN (OS) Mode (the absence of GS icon indicates
that the unit is on OS mode)
Allows continuous scanning of channels stored in the Open
Scan (OS) memory.
If an active channel is found, scanning will stop on that channel.
The factory has preprogrammed all the 40 UHF
channels into the Open Scan channel memory.
However, you can change or customise the channels
by following the steps on programming Scan Channels
on page 17.
Example. CH40 becomes active
If the received signal cease, the unit will
wait for at least 3 seconds for the signal to
return, otherwise scanning resumes.
To skip the active channel, press
To deactivate SCAN, press the
or
or
. Scanning resumes.
.
1. If SCAN is deactivated while in an active channel,
the uh044sx will stay on that active channel. If no
other channels are active, the uh044sx will reinstate
the starting channel.
2. If OS Scanning is initiated when there are no
channels programmed in OS memory, an error tone
will be heard and scanning will not start.
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UNIDEN Model uh044sx UHF CB Radio
OPERATION
GROUP SCAN(GS) Mode
To change between OS and GS scan;
MENU
MENU
ENTER
CALL
MEM
1. Press
four times.
ENTER
TX
PWR
GS setting ON or OFF will flash.
2. Press or to change the
selection.
SCAN
DUAL
MENU
3. Press and hold
exit.
to save and
ENTER
To initiate scanning,
1. When is pressed during
Group Scan Mode, SCN will blink
and Group Scan Scanning begins.
2. To deactivate GS scanning, press
or
.
1. If SCAN is deactivated while it is tuned to an active
channel, the uh044sx will stay on that active channel.
If none of the channels re- active, the uh044sx will
reinstate the Scan start channel.
2. If GS Scanning is initiated when there are no
channels programmed in GS memory, an error tone
will be heard and scanning will not start.
16
UNIDEN Model uh044sx UHF CB Radio
OPERATION
Priority Channel
The feature allows user to monitor one of the 40 channels,
monitoring it every 1.5 secs during Group Scanning. The Priority
Channel can also be monitored with Dual Watch, see page 18.
Choosing a Priority Channel
MENU
1. Press
three times. PRI setting flashes.
ENTER
2. Press
or
to select the desired
channel number or the OFF setting.
MENU
3. Press and hold
save and exit.
to
ENTER
Programming Scan Channels
1. Select which Scanning Mode you
wish to use on the channel OS or
GS Mode.
OS is indicated by the absence
of the GS icon.
2. Select the channel you want to
store by pressing
or
.
CALL
MEM
3. Press and hold
to store.
MEM icon appears.
MENU
ENTER
CALL
MEM
TX
PWR
4. To remove the channel from
SCAN
CALL
Memory, Press and hold
MEM
to
DUAL
remove. MEM icon disappears.
17
UNIDEN Model uh044sx UHF CB Radio
OPERATION
Drop-out Delay
While scanning, the uh044sx stops at a busy channel and
receives a signal. When the received signal is over, the unit will
wait for 3 seconds for the return of the signal, otherwise, the
radio resumes scanning.
DUAL WATCH
When Dual Watch function is active, PRI CH is watched every
1.5 seconds.
Press and hold
DUAL appears on the display when activated.
to activate or deactivate Dual Watch.
DUAL
MONITOR
This feature enables users to listen in
for weak signals on the current
channel at the press of a button.
To use monitor,
! For brief listening, press
.
! For continuous listening.
Press and hold
for 1.5 sec. A
two tone beep will be heard and
the receiver circuit will stay open,
letting in both the noise & weak
signals.
! Display shows BUSY icons.
! To return to normal receive mode
press
or
.
18
UNIDEN Model uh044sx UHF CB Radio
OPERATION
CTCSS
CTCSS is a feature that allows a
group to talk to each other without
hearing other users on the same
channel.
1. Select desired channel.
2. Press
MENU
two times. The current
DCS/CTCSS setting flashes.
ENTER
3. Press
,
to select desired
CTCSS code.
4. Press and hold
exit.
MENU
to save and
ENTER
DCS
DCS is a digital extension of CTCSS.
It provides 104 extra, digitally coded,
squelch codes that follow after the 38
CTCSS codes. CTCSS 1-38, followed
by DCS 1-104.
Follow the steps for changing CTCSS
code but select DCS code as desired.
Channels 05 and 35 are used for emergency
channels. CTCSS and DCS will not operate on
these two channels.
19
UNIDEN Model uh044sx UHF CB Radio
OPERATION
VOX
VOX is the automatic transmitting function by inputting
voice into the VOX headset mic without pressing the PTT
key.
While headset microphone is not connected, VOX
function is inactive even if vox level setting is from 1 to 4.
VOX icon blinks while VOX function is active.
MENU
1. Press
five times. The current
vox setting flashes.
2. Press to select desired
setting.
ENTER
,
The 5 VOX levels are from 1 (High
sensitivity) to 4 (Low sensitivity) and
Off.
MENU
3. Press and hold
to save and exit.
ENTER
ROOM MONITOR
The Room Monitor function sets the uh044sx to operate
as a transmitter only - receive (speaker) is disabled.
The TX is activated by voice activation (VOX) without
pressing
. TX will activate when the detected
voice/noise volume exceeds the setting threshold. If the
voice/noise keeps TX open for over 4seconds then TX will
continue automatically for an additional 15 seconds until
the voice/noise volume falls below the setting threshold.
While in Room Monitor mode;
. The receive function is disabled.
. RM flashes on the display.
. Dual Watch function, if ON, is disabled.
. Duplex mode is disabled on duplex channels.
. Scan mode is disabled.
20
UNIDEN Model uh044sx UHF CB Radio
OPERATION
Room Monitor can be temporarily disabled by pressing
or
CALL
.If no further operation is performed for 45
seconds then the temporary disable mode ends and
Room Monitor mode re-activates.
MEM
MENU
1. Press
2. Press
The 5 Room Monitor levels are from 1 (High sensitivity) to
six times.
ENTER
,
to select desired setting.
4 (Low sensitivity) and Off.
3. Press and hold
MENU
to save and exit.
ENTER
! If using this feature as Baby Monitor please note
it is not a replacement for regularly checking the
safety and security of children.
! The operating time is limited to the remaining
charge of the battery and is not suitable for
continuous overnight use.
! If there is any input at EXT SP MIC JACK,
Room Monitor automatically turns off.
CALL TONE
Your uh044sx radio is equipped with 5 selectable call
CALL
tones that will be transmitted when
momentarily.
is pressed
MEM
MENU
1. Press
eight times. The current call tone setting
to select desired setting.
The 5 call tones are C1, C2, C3, C4 and C5.
ENTER
flashes.
2. Press
,
MENU
3. Press and hold
to save and exit.
ENTER
Current regulations require calling tones to be
restricted to one transmission per minute. If a
second transmission is attempted within one
minute then an error tone will sound.
21
UNIDEN Model uh044sx UHF CB Radio
OPERATION
BUSY CHANNEL LOCKOUT
BCL is used when CTCSS or DCS is selected to prevent
transmission when the uh044sx detects a transmission
from another unit using the same CTCSS or DCS code.
MENU
1. Press
nine times. The current BCL
ENTER
setting flashes.
2. Press
3. Press and hold
,
to select desired setting.
MENU
to save and exit.
ENTER
ROGER BEEP
Roger Beep is a BEEP that is sent to notify the end of
transmission (both PTT and VOX transmission.) Roger
Beep can be heard through the speaker when Key Beep
is on. Roger Beep is transmitted even if Key Beep is
turned off.
However, Roger Beep will not be heard from the speaker.
MENU
1. Press
ten times. The current Roger Beep setting
ENTER
flashes.
2. Press
3. Press and hold
,
to select desired setting.
to save and exit.
MENU
ENTER
KEY BEEP
Assures the user that the keypad has been properly pressed by
emitting a beep tone. This tone can be switched on or off.
1. Press
eleven times. bP setting flashes.
2. Press
or
to change selection.
MENU
3. Press and hold
to save and exit.
ENTER
22
UNIDEN Model uh044sx UHF CB Radio
OPERATION
KEYPAD LOCK
To prevent accidental entries, you
can lock the keypad. Press and hold
the
button for 1.5 Secs
until it beeps to activate Key Lock.
icon appears.
To unlock the keypad, press and hold
the button again for 1.5 Secs.
disappears.
icon
When the Key Lock is active, a warning beep will be
heard if you attempt to press the keys.
POWER SAVE
Battery Save feature extends the battery life by switching the
receiver circuit power ON and OFF. This feature automatically
activates during stand by mode (RX mode without signal). It
turns OFF automatically when a signal is present, and activates
again after channel inactivity.
BACK LIGHTING
The Liquid Crystal Display (LCD) is backlit for easy viewing at
night or in low light situations. The back lighting automatically
switches ON every time a key (except PTT) is pressed. It turns
OFF 5 secs after the last key is pressed
23
UNIDEN Model uh044sx UHF CB Radio
UHF CB CHANNELS & FREQUENCIES
Please follow these guidelines for channel use in
Australia:
• Channels 05 and 35 are Emergency Channels.
• Channel 11 is a Calling Channel.
• Channels 22 and 23 are for telemetry and
telecommand applications and TX is inhibited on
these channels.
General communication is accepted on all other
channels with these guidelines:
• Channel 40 - road channel (Australia).
• Channels 01-08 (and 31-38) are repeater channels.
Simplex Mode
CH No. Transmit / Receive
Duplex Mode
Transmit
Frequency (MHz) Frequency (MHz)
Simplex Mode
CH No. Transmit/Receive
Frequency (Mhz)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
476.425
476.450
476.475
476.500
476.525
476.550
476.575
476.600
476.625
476.650
476.675
476.700
476.725
476.750
476.775
476.800
476.825
476.850
476.875
476.900
477.175 CH31
477.200 CH32
477.225 CH33
477.250 CH34
477.275 CH35
477.300 CH36
477.325 CH37
477.350 CH38
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
476.925
476.950 (RX only)
476.975 (RX only)
477.000
477.025
477.050
477.075
477.100
477.125
477.150
477.175
477.200
477.225
477.250
477.275
477.300
477.325
477.350
477.375
477.400
24
UNIDEN Model uh044sx UHF CB Radio
CTCSS & DCS CODE LIST
25
UNIDEN Model uh044sx UHF CB Radio
WARRANTY
UNIDEN UH044SX UHF CB TRANSCEIVER RADIO
Limited One Year Warranty
Please keep your sales docket as it provides evidence of warranty.
Warrantor:
Uniden Australia Pty Limited ABN 58 001 865 498
Uniden New Zealand Limited
Warranty only available in original country of purchase
Elements of Warranty: Uniden warrants to the original retail owner for the duration
of this warranty, its uh044sx UHF CB 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, or
(F) Where the Serial Number label of the product has been removed or damaged
beyond recognition.
Warranty only valid in the country of original retail/sale.
Parts Covered: This warranty covers for one (1) year, the Product and included
accessories.
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 or service. This warranty does not provide for reimbursement or payment of
incidental or consequential damages.
This EXPRESS WARRANTY is in addition to and does not in any way affect your
rights under the TRADE PRACTICES ACT 1974 (Cth) (Australia) or the
CONSUMER GUARANTEES ACT (New Zealand).
Procedure for obtaining performance or warranty: In the event that the Product
does not conform to this warranty, the Product should be shipped or delivered,
freight prepaid, with evidence of original purchase, (eg. a copy of the sales docket),
to the warrantor at:
UNIDEN AUSTRALIA PTY LTD
Service Division
UNIDEN NEW ZEALAND LTD
Service Division
345 Princes Highway,
Rockdale, NSW 2216
Fax (02) 9599 3278
150 Harris Road, East Tamaki,
Auckland
Fax (09) 274 4253
26
© 2007 Uniden Australia Pty Limited/Uniden New Zealand Limited
Printed in China UTZZ01937ZA(0)
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