Uniden UH5040 User manual

UH5040
UHF CB Transceiver
For more exciting new products please visit our website:
Australia: www.uniden.com.au

Introduction 3
Features 3
Preventive Maintenance 4
Troubleshooting 4
Controls / Connectors 5
Indicators 6
Included with Your UH5040 Transceiver 7
Operation 8
Turn ON the Power and Set the Volume 8
Setting the Squelch 8
Monitor 10
Selecting a Channel 10
Set the LCD Dimmer 10
Transmitting 11
Call Function 11
Using Repeater Channels 11
Operating the UH5040 in Duplex Mode 13
Scanning 13
Open Scan (OS) Mode 14
Group Scan (GS) Mode 15
Programming Scan Channels 16
Selecting the Call tone 16
Roger Beep 17
Busy Channel Lockout 17
Programming the Instant Priority Channel 18
Recalling the Instant Channel 18
CTCSS (Continuous Tone Coded Squelch System) 18
DCS (Digital Coded Squelch) 19
UHF CB Channels & Frequencies 20
CTCSS & DCS Code List 23
Warranty 26
2
Contents
UNIDEN UH5040 UHF CB Transceiver

The Uniden UH5040 is designed to provide you with years of trouble
free service. Its rugged components and materials are capable of
withstanding harsh environments. Please read this Operating Manual
carefully to ensure you gain the optimum performance of the unit.
NOTE
The citizen band radio service is licenced in Australia by
ACMA Radio-communications (Citizen Band Radio Stations)
Class Licence and in New Zealand by MED General User
Licence for Citizen Band Radio and operation is subject to
conditions contained in those licenses.
Features
• NarrowBand(NB)80Channel
Radio*
• TransmissionPower5W
• Built-inAVSCircuitry†
• LCDDisplaywithBacklight/
Dimmer
• SignalStrengthMeter
• RFPowerMeter
• InstantChannel
• OnetouchInstantChannel
recalling
• DuplexCapability(fromCH01
- CH08 and CH41 - CH48 per
channel)
• GroupScanandPriorityChannel
 Watch
• OpenScan
• ScanChannelMemoryOn/Off
separately with Open Scan,
Group Scan
• RotaryChannelSelect
• BusyChannelLock-outFunction
• RogerBeepFunctionOn/Off
• 5DifferentCallTones
• 38Built-inCTCSS(Continuous
Tone Coded Squelch System)
and 104 additional DCS (Digital
Coded Squelch) codes that are
user selectable
• VariableSquelchLeveladjust
• VolumeControlwithPowerOn/
Off Switch
* Refer to p.20 - p.22 for channel
information
†AVS - Automatic Volume
Stabilizer detects and manages
incoming audio to comparable
levels.
3
Introduction
UNIDEN UH5040 UHF CB Transceiver

4
Introduction
UNIDEN UH5040 UHF CB Transceiver
Preventive Maintenance
The following system checks should be made every six to twelve months:
• ChecktheStandingWaveRatio(SWR).
• Inspectthetightnessofallelectricalconnections.
• Inspecttheantennacoaxialcableforwearorbreaksontheshielding.
• Inspectthetightnessofallscrewsandothermountinghardware.
Troubleshooting
Should the unit malfunction or perform poorly, follow these procedures:
If the transceiver is completely inoperative: Check the power cord and
fuse. If there is trouble with receiving: Check the VOLUME control setting.
Be sure the SQUELCH is adjusted properly. Possibly the radio is over-
squelched.
If there is trouble with transmitting: Check that the transmission line
(coaxial cable) is securely connected to the ANTENNA connector. Check
that the antenna is fully extended for proper operation. Check that all
transmission line (coaxial cable) connections are secure and free of
corrosion.
NOTE
Blackening may occur on the Liquid Crystal Display if
the UHF CB Radio has been subjected to extreme high
temperature (above 60°C). This is not a fault. Normal LCD
operation resumes when the temperature stabilizes back to
standard operating condition (0-55°C).

UH5040
5
Controls & Connectors
UNIDEN UH5040 UHF CB Transceiver
1 3
56
4
2
7 10 118 9 12
1Liquid Crystal Display (LCD)
2Rotary Channel Selector
3 On/OffVolume&Squelch
4Push to Talk (PTT) Switch
5Call Button
6Instant Button
7 Menu/Enter-SelectButton
8 SCAN-ScanOn/Off
 OS/GS-OpenScan/
Group Scan
9DIM - Backlight Dimmer
10 MEM - Memory Scan Channels
11  MON-DCS/CTCSS-Monitor
 andDCS/CTCSSTonebutton
12  DUP-DuplexOn/Off
13 UHF Antenna Connection
14 External Speaker Jack
15 Power Input (13.8V DC)
EXT.SP.
13
14
15

6
Indicators
UNIDEN UH5040 UHF CB Transceiver
1 32 4 5 6 7
16
14
15
12 10 9 81113
1TX - Transmit
2MON - Monitor
3BUSY - Receiving
4 INST - Instant Channel
5MEM - Memory Scan
Channel
6DCS - Digital Coded Squelch
System
7CTCSS - Continuous Tone
Coded Squelch System
8 S/RF-ReceiveSignalor
Transmit RF Power Level
Meter
9-DCS/CTCSSCode
number
10 - Channel Number
11 BCL - Busy Channel Lockout
12 ROGER - Roger Beep
13 GS - Group Scan
14 CALL - Call Tone
15 SCAN - Scan Mode
16 DUP - Duplex

7
Included with your UH5040 Transceiver
UNIDEN UH5040 UHF CB Transceiver
Standard Microphone Owner’s Manual Mounting Bracket,
Mounting Screws,
WasherStars
And Screws
UH5040
UHF Mobile Radio
For more exciting new products please visit our website:
Australia: www.uniden.com.au
MicrophoneHanger&
ScrewsWashersand
spare fuse
DC Power Cord
with fuse
DIN Mounting Kit
(DMK8990)
External Speaker
(MS100)
Optional Accessories
ANT.
EXT.SP.
DC 13.8V
SQ
VOL
Rotary
Channel
Selector
MENU
ENTER OS/GS
DIM
SCAN MEM MON
DCS/CTCSS
DUP

8
Operation
UNIDEN UH5040 UHF CB Transceiver
Setting the Squelch
Turn the outer ring of the control to adjust the Squelch.
NOTE
You must select a channel which is not in use before
setting the SQUELCH control. (see below for “Selecting a
Channel”).
UH5040
Turn on the Power and set the Volume
Turn the unit ON by rotating the volume control clockwise. Set the
volume to a desired level.
UH5040

9
Operation
UNIDEN UH5040 UHF CB Transceiver
Think of the squelch control as a gate. If you
turn Squelch fully clockwise it raises the
‘Squelch gate’ so high that no signals get
through.
If you turn the Squelch fully counterclockwise
it lowers the ‘Squelch Gate’ to the extent that
all signals get through - weak, medium and
strong signals and noise.
To set the ‘Squelch Gate’ to the
desired level, turn the squelch knob
counterclockwise until you hear noise.
Then carefully turn the Squelch knob
clockwise until the noise fades. Now only
strong signals get through.

Selecting a Channel
Turn the Rotary Channel Selector to select the desired channel.
NOTE
For your reference a list of the available channels,
corresponding frequencies and guidelines for their use is
printed on page 20. For Australia, Channels 05 and 35 are
reserved for Emergency Calls.
10
UNIDEN UH5040 UHF CB Transceiver
Operation
UH5040
UH5040
Monitor
Press [MON] to open the squelch and receive all weak signals. Press
[MON] again momentarily to cancel.
Set the LCD Dimmer
Press [DIM] to set the LCD backlight dimmer between high and low.
UH5040