Uniden UH088SX-CB User Manual

UNIDEN uh088sx

CB RADIO

UNIDEN UHF CB Transceiver

Contents

Controls/Indicators/Connections

Controls....................................................................................... 3

Indicators.................................................................................... 4

Connections................................................................................ 5

Introduction

Features....................................................................................... 6

PreventativeMaintenance............................................................ 6

Troubleshooting.......................................................................... 6

Memory Backup.......................................................................... 6

Layout......................................................................................... 7

Included with youruh088sx CB radio................................................ 8

Operation

Setting the Squelch....................................................................... 9

Selecting a Channel...................................................................... 10

Transmitting................................................................................ 10

Using Repeater Channels............................................................. 10

Operating the uh088sxin DuplexMode........................................ 11

Scanning...................................................................................... 11

Open Scan (OS)Mode.................................................................. 11

Group Scan (GS)Mode................................................................. 12

Choosing a Priority Channel......................................................... 13

Drop Out Delay............................................................................. 13

ProgrammingScan Channels....................................................... 14

Channel Seeking Operation.......................................................... 15

UNIDEN UHF CB Transceiver

Contents

Continuous ToneCodedSquelchSystem (CTCSS)............................... 16

Selective Calling (OptionalSelcall PCBRequired)

Outline........................................................................................ 17

Selective Calling (SELCALL)......................................................... 17

Receiver Quieting (Tone Squelch)................................................ 17

Call Alarm.................................................................................... 17

ToneSquelch Scanning................................................................ 17

ToneCalling................................................................................. 17

Group Calling Capability............................................................... 17

Tables

FM-CB FrequencyList.................................................................. 18

CTCSS Tone List............................................................................ 18

Warranty............................................................................................. 19

UNIDEN UHF CB Transceiver

Controls/Indicators/Connections

uh088sx CONTROLS

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

2. -These controls are used to select the desired communication channel.

ON/OFF, VOLUME & SQUELCH CONTROLS

ON/OFF & Volume Control (Centre Knob)

Turns the uh088sx power ON or OFF and adjusts the volume.

Squelch Control (Outer Ring)

Eliminates background noise in the absence of an incoming spiral.

PUSH-TO-TALK (PTT) - SWITCH -

4. Press to transmit and release to receive.

TONE CALL CONTROL BUTTON

5. - Press to transmit SELCALL codes, it functions on condition that SELCALL option is installed.

DUPLEX Control

6. Press this button momentarily to choose semi-duplex opeartion for channels 1 through 8.

OPEN SCAN/GROUP SCAN CONTROL (OS/GS)-

7. Switches operation between OPEN SCAN and

GROUP SCAN Mode.

SCAN CONTROL (SCAN) Normal OS/GS

8. - Press to activate scanning or press and hold to enable Seek Mode OS/GS Scanning.

UNIDEN UHF CB Transceiver

Controls/Indicators/Connections

9. MEMORY CONTROL (MEM) -

10. TONE SQUELCH CONTROL (TSQ) -

SELCALL option is installed.

10 Secondary function: Continuous Tone Coded Squelch System (CTCSS)

group to talk to each other without hearing other users on the same channel.

INDICATORS

Places channel numbers into the memory scan list (OS or GS).

Controls Tone Squelched operation (quiet Mode) on condition that

212022

11. Channel Indicator

Indicator becomes a Memory location indicator.

12. Scan Indicator (SCN)

selected the SCN icon blinks.

13. Priority Indicator (PRI)

regularly being checked for activity while GS scanning.

14. Continuous Tone Coded Squelch System (CTCSS) Code

current channel.

15. Frequency Indicator

16. RECEIVE SIGNAL/ RF LEVEL indicator (S/RF)

or the relative transmit power (RF) when transmitting.

- Indicates the channel number currently selected. On TX SELCALL usage the Channel

- SCN icon appears when normal Scan mode is activated. When Seek mode Scanning is

- Indicates that priority channel is active when continuously lit or flashes when it is

- Shows the frequency of the current selected channel.

- Indicates the CTCSS code selected for the

- Indicates the relative signal strength level when receiving (S)

- is a feature that allows a

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17. DUPLEX Indicator (DUP)

18. TRANSMIT indicator (TX)

transmitting. The RF icon also appears at this time.

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.

20. CALL Indicator (CAL)

appears when SELCALL codes are being transmitted.

21. MEMORY Indicator (MEM)

OS Memory.

22. GROUP SCAN Indicator (GS)

indicated by the absence of the GS icon.

- The DUP icon appears when duplex operation is selected.

- TX appears when the PTT button on the microphone is pressed and the radio is

- The CAL icon appears when the uh088sx radio is called using SELCALL. It also

- MEM appears when the displayed channel is programmed either in GS or

- The GS icon appears when Group Scan Mode is activated. Open scan is

UNIDEN UHF CB Transceiver

Controls/Indicators/Connections

CONNECTIONS FRONT PANEL

23. MICROPHONE SOCKET

The microphone plug is inserted into this socket.

BACK PANEL

24. EXTERNAL SPEAKER JACK -

internal speaker is automatically disconnected. The connecting wire must use a 3.5mm miniature plug only.

25. ANTENNA CONNECTOR

26. DC POWER CORD

transceiver.

- DC Power is connected to the transceiver through this jack. A power cord is supplied with the

used for remote receiver monitoring. When the external speaker is connected, the

- Connect the Antenna here using a standard UHF (PL259) type connector.

UNIDEN UHF CB Transceiver

Introduction

The Uniden uh088sx is designed to provide you with years of trouble free service. It's 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.

Features

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

Preventative 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 all other mounting hardware.

Troubleshooting

Should the unit malfunction or perform poorly, follow these procedures:

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.

Memory Backup

A built in EEPROM protects the channels stored in the uh088sx memory after the DC power cable is disconnected

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