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Uniden uh078sx Operating Manual

Portable two-way uhf-cb radio
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Operating Guide
To bring outstanding wireless communication products
to people's lives throughout the world.



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  Summary of Contents for Uniden uh078sx

  • Page 1 Operating Guide To bring outstanding wireless communication products to people's lives throughout the world.
  • Page 2 Being defined as having no ingress of water when immersed at 1 meter for 30 minutes The uh078sx will only meet this rating if fully assembled and all rubber seals and bungs are well maintained and correctly fitted. This means that the speaker microphone bung is inserted, and the battery pack and antenna are attached and securely fastened.
  • Page 3: Table Of Contents

    Selecting Channel ...9 Transmitting a Call Tone ..9 Squelch...10 To Transmit and Receive ...11 Using a Repeater Channel ...12 To Operate uh078sx in Duplex Mode ...13 Scanning...13 Open Scan (OS) Mode...13 Group Scan (GS) Mode...14 Programming Scan Channels ...15 Priority Channel ...15...
  • Page 4: Features

    INTRODUCTION The uh078sx is a JIS7 Waterproof, portable two-way UHF-CB radio. It 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 uh078sx features, please read this operating guide carefully before using the unit.
  • Page 5: Included In Your Package

    2 x Lithium Batteries (DT078A) (BP078) Reference Guide/ Printed Material Wrist Strap If any of these items are missing from the box, contact your Uniden Dealer, immediately. OPTIONAL ACCESSORIES VOX Headset (VM-078) Heavy Duty Speaker Mic Antenna Beltclip External Speaker Mic...
  • Page 6: Getting Started

    Connect Charger with AC adaptor Plug one end of the AC adaptor into the wall outlet a n d the other end into the drop-in charger. Attaching the Antenna Attach the antenna to the uh078sx. Be sure the antenna is firmly seated.
  • Page 7: Attaching The Battery Pack

    2. Snap the battery release clip until it clicks. Be sure the battery pack fits tightly against the uh078sx body. Avoid exposing the Lithium Ion battery, attached or unattached to the radio, in direct sunshine, heated cars, or in areas with temperatures below –20°C (–4°F) or above +60°C (+140°F).
  • Page 8: Charging The Battery Packs

    The drop-in charger can charge the Lithium Ion battery pack attached to the uh078sx in the front charging slot and also charge a second Lithium Ion battery pack separately in the rear charging slot.
  • Page 9: Battery Level Display

    Battery Level Display The BATTERY icon in the top right hand corner of the screen indicates the uh078sx current battery voltage level at all times. The battery level is displayed in 4 levels. LEVEL 4 Battery 100% full LEVEL 3 Battery approx.
  • Page 10: Operation

    Your radio emits a beep each time-one of the keys (except for the PTT or mon) are pressed. 1. Press seven times. bP flashes and the current setting displays. 2. Press to change setting ON/OFF. 3. Press and hold to store setting. UH078SX...
  • Page 11: Roger Beep

    If you press and hold the channel number will scroll rapidly. TRANSMITTING A CALL TONE Your uh078sx is equipped with 5 selectable call tones that will be transmitted when is pressed. Current regulations require calling tones to be restricted to one transmission per minute.
  • Page 12: Squelch

    Make sure to first select a channel not in use before setting the squelch in your uh078sx UHF-CB radio. Think of squelch as a gate. Turn [SQ] fully clockwise. This raises the "Squelch Gate" so high that only the very strong signals can get through.
  • Page 13: To Transmit And Receive

    TO TRANSMIT AND RECEIVE The uh078sx uses the 40 UHF-CB Channels. For your reference a list of the available channels and corresponding frequencies is printed at the end of this manual. UHF Channels 22 and 23 are for telemetry and telecommand applications.
  • Page 14: Using A Repeater Channel

    With Duplex operation, the signal coming from your radio is received by the Repeater station and then re-transmitted at the same time on another channel. Your uh078sx is designed with duplex capability on Channels 1 to 8. When any of these channels are set to operate in duplex mode during transmission, the uh078sx automatically sends the signal at a frequency 30 channels above the original in order to access the repeater station.
  • Page 15: To Operate Uh078Sx In Duplex Mode

    Check with your local retailer for available repeaters. SCANNING The uh078sx has two types of scanning; Open Scanning (OS) and Group Scanning (GS). Scanning allows you to search for active channels programmed in the OS or GS memory.
  • Page 16: Group Scan (Gs) Mode

    To deactivate SCAN, press If SCAN is deactivated while it is turned to an active channel, the uh078sx will stay on that active channel. If none of the channels are active, the uh078sx will reinstate the scan start channel. key. GS appears on the...
  • Page 17: Programming Scan Channels

    DROP-OUT DELAY While scanning, the uh078sx stops at a busy channel and receives a transmission. When the received signal is over, the unit will wait for 3 seconds for the return of the signal, otherwise, the radio resumes scanning.
  • Page 18: 60 Receive Channels

    60 RECEIVE CHANNELS The uh078sx also has 60 receive only channels (CH41 to CH100) which can be programmed with frequencies ranging from 450-512MHz (in 12.5kHz steps). If you know the frequency you may store it manually. MANUAL PROGRAMMING Turn power off. Press and hold power back on.
  • Page 19: Advanced Features

    2. Press and hold to change to DCS/CTCSS scan mode. 3. When a signal is sensed on a DCS/CTCSS CH, the uh078sx stops for about 400 msecs (decode time) to decode the DCS/CTCSS code. If there is no code or the receive code does not match the one programmed for the channel, the uh078sx resumes scanning.
  • Page 20 VOX feature will not work without the Vox Headset Microphone. The built in mic of uh078sx is temporarily disabled, however accidental pressing of To activate VOX 1. Press two times. VOX and the current VOX setting flashes. 2. Press to select desired VOX level (oF, 1 to 9).
  • Page 21: Power Save

    POWER SAVE Battery Save feature extends the battery life by switching the receiver circuit power ON and OFF. This feature automatically activates during standby mode (RX mode without signal). BACK LIGHTING The Liquid Crystal Display (LCD) and function keys are backlit for easy viewing at night or in low light situations.
  • Page 22: Busy Channel Lock-Out (Bcl)

    BUSY CHANNEL LOCK-OUT (BCL) This feature prevents accidental transmission on a busy channel. This is recommended on channels where DCS/CTCSS is being used. If the channel is "active" and the signal is coming from a non or different DCS/CTCSS code user the BCL feature will prevent you from transmitting. Press five times.
  • Page 23: Uhf Channel And Frequencies

    UHF CHANNEL & 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.
  • Page 24: Ctcss & Dcs Code List

    CTCSS & DCS CODE LIST (o0) (o1) (o2) (o3) (o4)
  • Page 25: Controls And Indicators

    CONTROLS & INDICATORS 1 Antenna 2 Belt Clip 3 Battery 4 Battery Release Clip 5 PTT (Push to Talk) Key 6 Memory Key (MEM) 7 Scan Button (SCAN)/ Open Scan/Group Scan 8 TXP Power/Lock Button/ 9 Microphone 10 Speaker MIC Jack 11 ON/OFF VOL Knob 12 Squelch Knob (SQ) 13 LCD Display...
  • Page 26 LCD Display A Transmit B Busy Channel Lock C Busy D Voice Activation (VOX) E Roger Beep Key Lock G Battery Level Indicator H DCS / CTCSS DCS / CTCSS Indicator Channel Number K Scan Memory Priority Watch M Scramble N Group Scan O Scan P HI/LO Transmit...
  • Page 27: 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 uh078sx 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.
  • Page 28 ©2007 Uniden Australia Pty Limited/Uniden New Zealand Limited Part Code UTZZ01935ZA(0) Printed in China...