English Owners Manual
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... Station Antenna 4 Marine Installation 4 Connecting the Power Cords 5 Ground Information 5 Negative Ground System 5 Positive Ground System 5 To Receive 6 Weather Information 7 To Transmit 8 Multi-Function Meter 8 Preventive Maintenance 9 Maintenance 9 Servicing Your Transceiver 10 Troubleshooting 10 Radio Code Definitions 11 Specifications 12 Two-Year Extended Warranty 13 Unpacking Carefully unpack your PC78LTW and check the contents against this list: s PC78LTW CB 2-way mobile radio s Microphone s Mounting Bracket Kit s DC Power Cord s Reference Guide s Part 95...
... Station Antenna 4 Marine Installation 4 Connecting the Power Cords 5 Ground Information 5 Negative Ground System 5 Positive Ground System 5 To Receive 6 Weather Information 7 To Transmit 8 Multi-Function Meter 8 Preventive Maintenance 9 Maintenance 9 Servicing Your Transceiver 10 Troubleshooting 10 Radio Code Definitions 11 Specifications 12 Two-Year Extended Warranty 13 Unpacking Carefully unpack your PC78LTW and check the contents against this list: s PC78LTW CB 2-way mobile radio s Microphone s Mounting Bracket Kit s DC Power Cord s Reference Guide s Part 95...
English Owners Manual
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... Radio Service operators are subject to a motorist. pc78ltw.qxd 2/24/99 8:24 AM Page 1 Description Your Uniden PC78LTW represents the highest quality communications device designed for use in Part 2 of Citizens Band Radio Service. Set the switch to CH9 or turn Channel Selector knob to permit CB station operation without notice. If there is a registered trademark of CB radios. 1 Emergency Operation 1. Any adjustments...
... Radio Service operators are subject to a motorist. pc78ltw.qxd 2/24/99 8:24 AM Page 1 Description Your Uniden PC78LTW represents the highest quality communications device designed for use in Part 2 of Citizens Band Radio Service. Set the switch to CH9 or turn Channel Selector knob to permit CB station operation without notice. If there is a registered trademark of CB radios. 1 Emergency Operation 1. Any adjustments...
English Owners Manual
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...-transmitting; Check antenna, cable and connections. 13. Dynamic Squelch Control (DSC): Automatically sets Squelch to optimal level for Standing Wave Ratio (SWR) measurements. 8. Channel Knob: Selects channel. 10. PC78LTW BACKLIGHTED PANEL 1. RF GAIN: Improves reception in antenna system. pc78ltw.qxd 2/24/99 8:24 AM Page 2 Controls and Functions FRONT VIEW - Microphone Jack 2. MIC GAIN: Adjusts microphone sensitivity. 6. Weather Channel Knob: Selects weather channel. 9. CH9/OFF: Turns Channel...
...-transmitting; Check antenna, cable and connections. 13. Dynamic Squelch Control (DSC): Automatically sets Squelch to optimal level for Standing Wave Ratio (SWR) measurements. 8. Channel Knob: Selects channel. 10. PC78LTW BACKLIGHTED PANEL 1. RF GAIN: Improves reception in antenna system. pc78ltw.qxd 2/24/99 8:24 AM Page 2 Controls and Functions FRONT VIEW - Microphone Jack 2. MIC GAIN: Adjusts microphone sensitivity. 6. Weather Channel Knob: Selects weather channel. 9. CH9/OFF: Turns Channel...
English Owners Manual
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.... 19. PA SP.: Connects external 8-ohm, 4-watt speaker. ANT.: Connects antenna cable to transceiver. 3 pc78ltw.qxd 2/24/99 8:24 AM Page 3 17. To prevent acoustic feedback, separate the microphone from the speaker when operating the PA at high output levels. 23. S/RF/SWR/CAL: Selects meter function. CB/WX/PA Switch: Selects PA (Public Address) WX...
.... 19. PA SP.: Connects external 8-ohm, 4-watt speaker. ANT.: Connects antenna cable to transceiver. 3 pc78ltw.qxd 2/24/99 8:24 AM Page 3 17. To prevent acoustic feedback, separate the microphone from the speaker when operating the PA at high output levels. 23. S/RF/SWR/CAL: Selects meter function. CB/WX/PA Switch: Selects PA (Public Address) WX...
English Owners Manual
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... maximum power transfer from the 50 ohm transmission line to install on an automobile. Your Uniden dealer is convenient for information regarding marine installation. A short 'loaded' whip antenna is very important. MARINE INSTALLATION Consult your dealer for operating the radio, but does not interfere with self-tapping screws provided. 3. Install bracket with the driver or passenger. 2. Connect wiring. (See instructions for automobile installation. You...
... maximum power transfer from the 50 ohm transmission line to install on an automobile. Your Uniden dealer is convenient for information regarding marine installation. A short 'loaded' whip antenna is very important. MARINE INSTALLATION Consult your dealer for operating the radio, but does not interfere with self-tapping screws provided. 3. Install bracket with the driver or passenger. 2. Connect wiring. (See instructions for automobile installation. You...
English Owners Manual
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GROUND INFORMATION Note: This transceiver may be installed and used in the wiring harness. Some older cars, and some new large trucks, use a negative ground system. Positive Ground System If you have a negative ground system, connect the red DC power cord from the transceiver to a point in any 12-volt DC negative or positive ground system vehicle...
GROUND INFORMATION Note: This transceiver may be installed and used in the wiring harness. Some older cars, and some new large trucks, use a negative ground system. Positive Ground System If you have a negative ground system, connect the red DC power cord from the transceiver to a point in any 12-volt DC negative or positive ground system vehicle...
English Owners Manual
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... through . 6 Select CHANNEL. 3. Dynamic Squelch Control automatically sets Squelch to NB/ANL. Turn SQUELCH fully counterclockwise until the hiss stops. Turn SQUELCH back clockwise until you hear a hiss. Set switch to the optimal level for weaker signals, turn Dynamic Squelch Control off ... clearer signals get through. 4b. Turn unit ON and set VOLUME Control to a comfortable level. 2. pc78ltw.qxd 2/24/99 8:24 AM Page 6 To Receive Be sure that the power source, antenna, and microphone are properly connected before proceeding. 1. Turn SQUELCH fully clockwise so only strong ...
... through . 6 Select CHANNEL. 3. Dynamic Squelch Control automatically sets Squelch to NB/ANL. Turn SQUELCH fully counterclockwise until the hiss stops. Turn SQUELCH back clockwise until you hear a hiss. Set switch to the optimal level for weaker signals, turn Dynamic Squelch Control off ... clearer signals get through. 4b. Turn unit ON and set VOLUME Control to a comfortable level. 2. pc78ltw.qxd 2/24/99 8:24 AM Page 6 To Receive Be sure that the power source, antenna, and microphone are properly connected before proceeding. 1. Turn SQUELCH fully clockwise so only strong ...
English Owners Manual
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... sounds a seven-second signal in strong signal areas. 6. Turn the Weather Channel knob to S/RF. Set meter switch to the channel with a Weather Radio and a Weather Alert System. Weather Information Your PC78LTW combines a CB Radio with best reception. To configure your CB radio: 1. pc78ltw.qxd 2/24/99 8:24 AM Page 7 Set SQUELCH only when the radio is not receiving a strong signal. 5. To use...
... sounds a seven-second signal in strong signal areas. 6. Turn the Weather Channel knob to S/RF. Set meter switch to the channel with a Weather Radio and a Weather Alert System. Weather Information Your PC78LTW combines a CB Radio with best reception. To configure your CB radio: 1. pc78ltw.qxd 2/24/99 8:24 AM Page 7 Set SQUELCH only when the radio is not receiving a strong signal. 5. To use...
English Owners Manual
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... understand Part 95, FCC Rules and Regulations before operating your antenna to the SWR position while pressing the microphone PTT switch. Adjust MIC GAIN. 3. A reading below 2 is clear, press the microphone PTT switch and speak. Check both ends of antenna. Multi-Function Meter SWR Meter: Measures SWR (standing wave ratio) of the coaxial cable connector. Press microphone PTT switch. (Transmit) 3. Select a channel. 2. To measure SWR: 1. Higher...
... understand Part 95, FCC Rules and Regulations before operating your antenna to the SWR position while pressing the microphone PTT switch. Adjust MIC GAIN. 3. A reading below 2 is clear, press the microphone PTT switch and speak. Check both ends of antenna. Multi-Function Meter SWR Meter: Measures SWR (standing wave ratio) of the coaxial cable connector. Press microphone PTT switch. (Transmit) 3. Select a channel. 2. To measure SWR: 1. Higher...
English Owners Manual
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... so may void your PC78LTW. The meter swings to read transmitting power. Inspect antenna coaxial cable for the fuse in shielding. 4. Except for wear or breaks in the DC power cord, no user-serviceable parts inside. If blown, replace with the same type fuse. S-Meter: Measures incoming signal strength. Be sure all screws and mounting hardware are tight. 3. Press ends of trouble-free service. To use , position...
... so may void your PC78LTW. The meter swings to read transmitting power. Inspect antenna coaxial cable for the fuse in shielding. 4. Except for wear or breaks in the DC power cord, no user-serviceable parts inside. If blown, replace with the same type fuse. S-Meter: Measures incoming signal strength. Be sure all screws and mounting hardware are tight. 3. Press ends of trouble-free service. To use , position...
English Owners Manual
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.... u Be sure antenna SWR is normal. u Check MIC GAIN and adjust to 5:00 p.m. Please read the Warning information on request. u Check fuse. u Set CB/WX/PA switch to MAX. u Check antenna connection. Servicing Your Transceiver Technical information, diagrams, and charts are provided on page 1 of the unit. 10 We highly recommend that this CB radio product. u Set RF GAIN to CB. u Check microphone connection...
.... u Be sure antenna SWR is normal. u Check MIC GAIN and adjust to 5:00 p.m. Please read the Warning information on request. u Check fuse. u Set CB/WX/PA switch to MAX. u Check antenna connection. Servicing Your Transceiver Technical information, diagrams, and charts are provided on page 1 of the unit. 10 We highly recommend that this CB radio product. u Set RF GAIN to CB. u Check microphone connection...
English Owners Manual
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...Receiving well Stop transmitting OK, message received Relay message Busy, stand by Out of service, leaving air In service, subject to ...Trouble at this channel 10-94 Please give me a long count 10-99 Mission completed, all units secure 10-200 Police needed at 10-39 Your message is delivered 10-41 Please turn to channel...radio operators for faster communication and better understanding. pc78ltw.qxd 2/24/99 8:24 AM Page 11 Radio Code Definitions The following list contains common "10-Codes" used by Completed last assignment Can you contact Disregard last information I am moving to channel...
...Receiving well Stop transmitting OK, message received Relay message Busy, stand by Out of service, leaving air In service, subject to ...Trouble at this channel 10-94 Please give me a long count 10-99 Mission completed, all units secure 10-200 Police needed at 10-39 Your message is delivered 10-41 Please turn to channel...radio operators for faster communication and better understanding. pc78ltw.qxd 2/24/99 8:24 AM Page 11 Radio Code Definitions The following list contains common "10-Codes" used by Completed last assignment Can you contact Disregard last information I am moving to channel...
English Owners Manual
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...°C to +60°C (DSC on) Plug-in PA. with microphone UHF, SQ-239 Illuminated; pc78ltw.qxd 2/24/99 8:24 AM Page 12 Specifications General Channels: CB Frequency Range: Weather Frequency Range: Frequency Control: Frequency Tolerance: Operating Temperature: Microphone: Input Voltage: Current Drain: Size: Weight: Antenna Connector: Meter: Transmitter Power Output: Modulation: Frequency Response: Output Impedance: Receiver Sensitivity: Selectivity: Image Rejection: Adjacent-Ch. and low-level...
...°C to +60°C (DSC on) Plug-in PA. with microphone UHF, SQ-239 Illuminated; pc78ltw.qxd 2/24/99 8:24 AM Page 12 Specifications General Channels: CB Frequency Range: Weather Frequency Range: Frequency Control: Frequency Tolerance: Operating Temperature: Microphone: Input Voltage: Current Drain: Size: Weight: Antenna Connector: Meter: Transmitter Power Output: Modulation: Frequency Response: Output Impedance: Receiver Sensitivity: Selectivity: Image Rejection: Adjacent-Ch. and low-level...
English Owners Manual
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... exclusion may replace the unit with only the limitations or exclusions set out below. The warranty is invalid if the Product is void outside the United States of any conversion kits, subassemblies, or any time while this warranty at any configurations not sold by Uniden, (C) improperly installed, (D) serviced or repaired by someone other than as part of...
... exclusion may replace the unit with only the limitations or exclusions set out below. The warranty is invalid if the Product is void outside the United States of any conversion kits, subassemblies, or any time while this warranty at any configurations not sold by Uniden, (C) improperly installed, (D) serviced or repaired by someone other than as part of...