Uniden Uh088sx Cb Tranciever Owners Manual

							UNIDEN uh088sx
CB RADIO 
						

							1
Controls/Indicators/Connections
Controls....................................................................................... 3
Indicators.................................................................................... 4
Connections................................................................................ 5
Introduction
Features....................................................................................... 6
Preventative Maintenance............................................................ 6
Troubleshooting.......................................................................... 6
Memory Backup.......................................................................... 6
Layout......................................................................................... 7
Included with your uh088sx CB radio................................................ 8
Operation
Setting the Squelch....................................................................... 9
Selecting a Channel...................................................................... 10
Transmitting................................................................................ 10
Using Repeater Channels............................................................. 10
Operating the uh088sx in Duplex Mode........................................ 11
Scanning...................................................................................... 11
Open Scan (OS) Mode.................................................................. 11
Group Scan (GS) Mode................................................................. 12
Choosing a Priority Channel......................................................... 13
Drop Out Delay............................................................................. 13
Programming Scan Channels....................................................... 14
Channel Seeking Operation.......................................................... 15
Contents
UNIDEN UHF CB Transceiver 
						

							Contents
Continuous Tone Coded Squelch System (CTCSS)............................... 16
Selective Calling (Optional Selcall PCB Required)
Outline........................................................................................ 17
Selective Calling (SELCALL)......................................................... 17
Receiver Quieting (Tone Squelch)................................................ 17
Call Alarm.................................................................................... 17
Tone Squelch Scanning................................................................ 17
Tone Calling................................................................................. 17
Group Calling Capability............................................................... 17
Tables
FM-CB Frequency List.................................................................. 18
CTCSS Tone List............................................................................ 18
Warranty............................................................................................. 19
2
UNIDEN UHF CB Transceiver 
						

							Controls/Indicators/Connections
1.
2. -These controls are used to select the desired
communication channel.
3.
Turns the uh088sx power ON or OFF and adjusts the volume.
Eliminates background noise in the absence of an incoming spiral.
4. Press to transmit and release to receive.
5. - Press to transmit SELCALL codes, it functions on condition that
SELCALL option is installed.
6.
Press this button momentarily to choose semi-duplex opeartion for channels 1 through 8.
7. Switches operation between OPEN SCAN and
GROUP SCAN Mode.
8. - Press to activate scanning or press and hold to enable Seek Mode
OS/GS Scanning. LIQUID CRYSTAL DISPLAY (LCD) PANEL - Indicators for TX, CAL, MEM, TSQ, GS (OS), SCN
PRI, Channel Number, Frequency, Signal Strength Level (S), Transmit Power Level (RF),CTCSS Code
and DUP.
UP/DOWN CHANNEL SELECTOR
ON/OFF, VOLUME & SQUELCH CONTROLS
ON/OFF & Volume Control (Centre Knob)
Squelch Control (Outer Ring)
PUSH-TO-TALK (PTT) - SWITCH -
TONE CALL CONTROL BUTTON
DUPLEX Control
OPEN SCAN/GROUP SCAN CONTROL (OS/GS)-
SCAN CONTROL (SCAN) Normal OS/GS
3
UNIDEN UHF CB Transceiver
uh088sx
CONTROLS
109876
191235
4 
						

							9. MEMORY CONTROL (MEM) -
10. TONE SQUELCH CONTROL (TSQ) -
10 Secondary function: Continuous Tone Coded Squelch System (CTCSS)
11. Channel Indicator
12. Scan Indicator (SCN)
13. Priority Indicator (PRI)
14. Continuous Tone Coded Squelch System (CTCSS) Code
15. Frequency Indicator
16. RECEIVE SIGNAL/ RF LEVEL indicator (S/RF)
17. DUPLEX Indicator (DUP)
18. TRANSMIT indicator (TX)
20. CALL Indicator (CAL)
21. MEMORY Indicator (MEM)
22. GROUP SCAN Indicator (GS)Places channel numbers into the memory scan list (OS or GS).
Controls Tone Squelched operation (quiet Mode) on condition that
SELCALL option is installed.
- is a feature that allows a
group to talk to each other without hearing other users on the same channel.
- Indicates the channel number currently selected. On TX SELCALL usage the Channel
Indicator becomes a Memory location indicator.
- SCN icon appears when normal Scan mode is activated. When Seek mode Scanning is
selected the SCN icon blinks.
- Indicates that priority channel is active when continuously lit or flashes when it is
regularly being checked for activity while GS scanning.
- Indicates the CTCSS code selected for the
current channel.
- Shows the frequency of the current selected channel.
- Indicates the relative signal strength level when receiving (S)
or the relative transmit power (RF) when transmitting.
- The DUP icon appears when duplex operation is selected.
- TX appears when the PTT button on the microphone is pressed and the radio is
transmitting. The RF icon also appears at this time.
- The CAL icon appears when the uh088sx radio is called using SELCALL. It also
appears when SELCALL codes are being transmitted.
- MEM appears when the displayed channel is programmed either in GS or
OS Memory.
- The GS icon appears when Group Scan Mode is activated. Open scan is
indicated by the absence of the GS icon.
INDICATORS
19. TONE SQUELCH indicator (TSQ)- The TSQ icon will appear when the selected channel is set to operate in
Quiet Mode, or flashes when the radio is called using SELCALL.
Controls/Indicators/Connections
4
UNIDEN UHF CB Transceiver
1211
13
12
1415
16
212022
18
17
19 
						

							CONNECTIONS
FRONT PANEL
BACK PANEL
23. MICROPHONE SOCKET
24. EXTERNAL SPEAKER JACK -
25. ANTENNA CONNECTOR
26. DC POWER CORDThe microphone plug is inserted into this socket.
used for remote receiver monitoring. When the external speaker is connected, the
internal speaker is automatically disconnected. The connecting wire must use a 3.5mm miniature plug only.
- Connect the Antenna here using a standard UHF (PL259) type connector.
- DC Power is connected to the transceiver through this jack. A power cord is supplied with the
transceiver.
Controls/Indicators/Connections
5
UNIDEN UHF CB Transceiver
23
24
2625 
						

							The Uniden uh088sx is designed to provide you with years of trouble free service. Its rugged components and
materials are capable of withstanding harsh environments.
We are certain that you will enjoy your uh088sx. Please read this operating Manual carefully to ensure you gain the
optimum performance of the unit.
Transmit & Receive FM 40CH (UHF - CB, TX Power 5w)
7 Segments LCD
CTCSS function
Tone Squelch (Selcall) Capability
Duplex Capability (from CH01 - CH08 per channel)
Open Scan/Group Scan
Variable Squelch Level adjust
Volume Control with power ON/Off Switch
Features
Preventative Maintenance
Troubleshooting
Memory Backup


































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 all other mounting hardware.
Should the unit malfunction or perform poorly, follow these procedures:
Check the power cord and fuse.
Check the VOLUME control setting. Be sure the SQUELCH is adjusted properly. Possibly the radio is
over squelched.
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.
A built in EEPROM protects the channels stored in the uh088sx memory after the DC power cable is
disconnected If there is trouble with receiving...
If there is trouble with transmitting...
UNIDEN UHF CB Transceiver
Introduction
6 
						

							LAYOUT
Front Panel Layout
Microphone Layout
PTT Tone Call
UNIDEN UHF CB Transceiver
Introduction
7 
						

							UNIDEN UHF CB Transceiver
Included with your uh088sx CB radio
Mounting Bracket, Knobs,
Rubber washer, Washer Stars
and Screws.
UNIDENuh088sx
CB RADIO
uh088sx Owners Manual Microphone
Microphone Hanger Screws
and washers
8
DC Power Cord with fuse