Owners Manual
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... by : 1. Reading your place of purchase. Features, specifications, and availability of purchase for warranty. © 2016. CUSTOMER CARE At Uniden®, we care about you need assistance, please do NOT return this manual may differ slightly from your questions by law are all subject to your owner's manual. 2. If you ! Save your receipt/proof of...
... by : 1. Reading your place of purchase. Features, specifications, and availability of purchase for warranty. © 2016. CUSTOMER CARE At Uniden®, we care about you need assistance, please do NOT return this manual may differ slightly from your questions by law are all subject to your owner's manual. 2. If you ! Save your receipt/proof of...
Owners Manual
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CONTENTS DESCRIPTION 5 EMERGENCY OPERATIONS 5 WHAT'S IN THE BOX 5 FRONT VIEW 6 REAR VIEW...7 INSTALLATION 7 MOBILE INSTALLATION 7 Mobile Antenna 8 Connecting the Power Cords 8 Ground Information 9 USING YOUR PC78LTX 10 TURN PC78LTX ON/OFF 10 CB MODE...10 PA MODE...10 HI CUT/OFF 11 TO TRANSMIT/RECEIVE 11 MULTI-FUNCTION METER 11 PREVENTIVE MAINTENANCE 12 MAINTENANCE 12 TROUBLESHOOTING 13 SPECIFICATIONS 13 RADIO CODE DEFINITIONS 15 10-CODES...15 SAFETY NOTICE 16 ONE-YEAR EXTENDED WARRANTY 17
CONTENTS DESCRIPTION 5 EMERGENCY OPERATIONS 5 WHAT'S IN THE BOX 5 FRONT VIEW 6 REAR VIEW...7 INSTALLATION 7 MOBILE INSTALLATION 7 Mobile Antenna 8 Connecting the Power Cords 8 Ground Information 9 USING YOUR PC78LTX 10 TURN PC78LTX ON/OFF 10 CB MODE...10 PA MODE...10 HI CUT/OFF 11 TO TRANSMIT/RECEIVE 11 MULTI-FUNCTION METER 11 PREVENTIVE MAINTENANCE 12 MAINTENANCE 12 TROUBLESHOOTING 13 SPECIFICATIONS 13 RADIO CODE DEFINITIONS 15 10-CODES...15 SAFETY NOTICE 16 ONE-YEAR EXTENDED WARRANTY 17
Owners Manual
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... Power Cord Owner's Manual Part 95 Subpart D (FCC Rules) 5 Replacement or substitution of crystal, transistors, ICs, regulator diodes, or any of the 40 AM frequencies authorized by Uniden, may cause violations of the technical regulations in Part 95 of the FCC Rules or in violation of type acceptance requirements in the Citizens Band Radio Service. DESCRIPTION Your Uniden PC78LTX...
... Power Cord Owner's Manual Part 95 Subpart D (FCC Rules) 5 Replacement or substitution of crystal, transistors, ICs, regulator diodes, or any of the 40 AM frequencies authorized by Uniden, may cause violations of the technical regulations in Part 95 of the FCC Rules or in violation of type acceptance requirements in the Citizens Band Radio Service. DESCRIPTION Your Uniden PC78LTX...
Owners Manual
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... CB Channel 9. MIC GAIN knob: Adjusts microphone sensitivity RF GAIN knob: Improves reception in antenna system. RX/TX LED: Red-transmitting; VOLUME: Turns radio on , cuts high audio frequencies. Check antenna, cable, and connections. green-receiving. SQUELCH: Reduces background noise when there is no incoming signal. Turn off ; BRT/DIM switch: Adjusts the LED brightness 6 adjusts speaker volume. SWR CAL: Calibrates the meter for further information. If...
... CB Channel 9. MIC GAIN knob: Adjusts microphone sensitivity RF GAIN knob: Improves reception in antenna system. RX/TX LED: Red-transmitting; VOLUME: Turns radio on , cuts high audio frequencies. Check antenna, cable, and connections. green-receiving. SQUELCH: Reduces background noise when there is no incoming signal. Turn off ; BRT/DIM switch: Adjusts the LED brightness 6 adjusts speaker volume. SWR CAL: Calibrates the meter for further information. If...
Owners Manual
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... Band) or PA (Public Address). jack: Connects external 8-ohm, 4-watt speaker. POWER connector: Connects DC power to remotely monitor the receiver. S/RF- See page 11 for SWR measurements only. normal; EXT. When the external speaker is plugged in, the internal speaker...microphone from vehicle ignition systems. S/RF/SWR/ CAL switch: Selects meter function. REAR VIEW 8 9 Item 18 19 20 21 Definition Antenna socket: Connects antenna cable to transceiver. NB/ANL/ANL/OFF switch: Reduces external noise and interference from the speaker when operating the PA at high output...
... Band) or PA (Public Address). jack: Connects external 8-ohm, 4-watt speaker. POWER connector: Connects DC power to remotely monitor the receiver. S/RF- See page 11 for SWR measurements only. normal; EXT. When the external speaker is plugged in, the internal speaker...microphone from vehicle ignition systems. S/RF/SWR/ CAL switch: Selects meter function. REAR VIEW 8 9 Item 18 19 20 21 Definition Antenna socket: Connects antenna cable to transceiver. NB/ANL/ANL/OFF switch: Reduces external noise and interference from the speaker when operating the PA at high output...
Owners Manual
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... antenna is very important. Connect power cords (see page 9). 4. Because the maximum power output of the transmitter is less than that of the radio. 5. You have just purchased a superior transceiver don't diminish its efficiency is limited by installing an inferior antenna. The antenna must be used with a damaged antenna cable. CAUTION: Never operate your requirements. Attach the microphone bracket to operate this radio...
... antenna is very important. Connect power cords (see page 9). 4. Because the maximum power output of the transmitter is less than that of the radio. 5. You have just purchased a superior transceiver don't diminish its efficiency is limited by installing an inferior antenna. The antenna must be used with a damaged antenna cable. CAUTION: Never operate your requirements. Attach the microphone bracket to operate this radio...
Owners Manual
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... cars, and some new large trucks, use a negative ground system. Negative Ground System For negative ground systems, connect the red DC power cord from the transceiver to the Ignition Switch Accessory Terminal. This transceiver may be installed and used in doubt, contact your vehicle dealer for information. Connecting the Power Cords Uniden recommends connecting the power lead to the...
... cars, and some new large trucks, use a negative ground system. Negative Ground System For negative ground systems, connect the red DC power cord from the transceiver to the Ignition Switch Accessory Terminal. This transceiver may be installed and used in doubt, contact your vehicle dealer for information. Connecting the Power Cords Uniden recommends connecting the power lead to the...
Owners Manual
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... the radio is turned clockwise to PA. 2. Normally, the knob is not receiving a strong signal. 6. Switch to maximum. 8. Set the volume to S/RF. Adjust RF GAIN knob set RF Gain sensitivity. Set meter switch to a comfortable level. 2. PA MODE Using the PA mode requires an optional speaker. 1. Turn the CH knob to select a CB channel. 4. USING YOUR PC78LTX TURN PC78LTX ON/OFF Turn...
... the radio is turned clockwise to PA. 2. Normally, the knob is not receiving a strong signal. 6. Switch to maximum. 8. Set the volume to S/RF. Adjust RF GAIN knob set RF Gain sensitivity. Set meter switch to a comfortable level. 2. PA MODE Using the PA mode requires an optional speaker. 1. Turn the CH knob to select a CB channel. 4. USING YOUR PC78LTX TURN PC78LTX ON/OFF Turn...
Owners Manual
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Release when finished. Press and hold microphone PTT switch (Transmit). 3. Move the meter switch to the transmission. Adjust MIC GAIN. 3. Use this meter to check the antenna system or to adjust your transmitter. 1. To Measure SWR: 1. You cannot respond to the SWR position while pressing the microphone PTT switch. 5. When the channel is clear, press the microphone PTT and speak. 4. To prevent acoustic feedback...
Release when finished. Press and hold microphone PTT switch (Transmit). 3. Move the meter switch to the transmission. Adjust MIC GAIN. 3. Use this meter to check the antenna system or to adjust your transmitter. 1. To Measure SWR: 1. You cannot respond to the SWR position while pressing the microphone PTT switch. 5. When the channel is clear, press the microphone PTT and speak. 4. To prevent acoustic feedback...
Owners Manual
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... a problem in the DC power cord, no user-serviceable parts inside. Carefully separate the two pieces. 3. Remove the fuse and inspect. Except for your warranty. 12 To use , set the meter switch at S/RF. Use only the fuse specified for the fuse in the antenna system. Tune the antenna according to open. 2. Be sure all screws and mounting hardware are tight. 3. Problems may void your PC78LTX. Press microphone...
... a problem in the DC power cord, no user-serviceable parts inside. Carefully separate the two pieces. 3. Remove the fuse and inspect. Except for your warranty. 12 To use , set the meter switch at S/RF. Use only the fuse specified for the fuse in the antenna system. Tune the antenna according to open. 2. Be sure all screws and mounting hardware are tight. 3. Problems may void your PC78LTX. Press microphone...
Owners Manual
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... left side Adjust the antenna length. Adjust MIC Gain. Check power cord connections. Low Transmission Be sure antenna SWR is normal. Calibration does not move the meter needle to CB. Check antenna connection. Check antenna. Set CB/PA to 60°C) Plug-in type; 600 ohms dynamic 13.8VDC 13 Check microphone connection. SPECIFICATIONS GENERAL Channel: CB Frequency Range: Frequency Control: Antenna Impedance Frequency Tolerance: Operating Temperature: Microphone: Power Input : 40...
... left side Adjust the antenna length. Adjust MIC Gain. Check power cord connections. Low Transmission Be sure antenna SWR is normal. Calibration does not move the meter needle to CB. Check antenna connection. Check antenna. Set CB/PA to 60°C) Plug-in type; 600 ohms dynamic 13.8VDC 13 Check microphone connection. SPECIFICATIONS GENERAL Channel: CB Frequency Range: Frequency Control: Antenna Impedance Frequency Tolerance: Operating Temperature: Microphone: Power Input : 40...
Owners Manual
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... Hz -70dB 50 ohm, unbalanced with microphone UHF, SO-239 4 watts High- Current Drain: Size (W x D x H): Weight: Antenna Connector: TRANSMITTER Power Output: Modulation: Frequency Tolerance Frequency Response: Spurious Rejection Output Impedance: RECEIVER Sensitivity at 10 dB (S+N)/N: Selectivity: Image Rejection: Adjacent-CH Rejection: IF Frequencies: Double Conversion: Automatic Gain Control: RF Gain Control: Noise Blanker: Squelch: Audio Output Power: Frequency Response: Distortion: Internal Speaker: External...
... Hz -70dB 50 ohm, unbalanced with microphone UHF, SO-239 4 watts High- Current Drain: Size (W x D x H): Weight: Antenna Connector: TRANSMITTER Power Output: Modulation: Frequency Tolerance Frequency Response: Spurious Rejection Output Impedance: RECEIVER Sensitivity at 10 dB (S+N)/N: Selectivity: Image Rejection: Adjacent-CH Rejection: IF Frequencies: Double Conversion: Automatic Gain Control: RF Gain Control: Noise Blanker: Squelch: Audio Output Power: Frequency Response: Distortion: Internal Speaker: External...
Owners Manual
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... of service, leaving air 10-8 In service, subject to call 10-9 Repeat message 10-10 Transmission completed, standing by CB radio operators for us? Code 10-34 10-35 10-36 10-37 10-38 10-39 10-41 10-42 10-43 10-44 Meaning Trouble at this station Confidential information Correct time... to Net clear 15 The PA also monitors the receiver; PA SYSTEM Power Output: External Speaker for you 10-45 10-50 10-60 All units within range please report Break channel What is delivered Please turn to channel Traffic accident at Traffic tie up at Urgent business Anything for faster communication...
... of service, leaving air 10-8 In service, subject to call 10-9 Repeat message 10-10 Transmission completed, standing by CB radio operators for us? Code 10-34 10-35 10-36 10-37 10-38 10-39 10-41 10-42 10-43 10-44 Meaning Trouble at this station Confidential information Correct time... to Net clear 15 The PA also monitors the receiver; PA SYSTEM Power Output: External Speaker for you 10-45 10-50 10-60 All units within range please report Break channel What is delivered Please turn to channel Traffic accident at Traffic tie up at Urgent business Anything for faster communication...
Owners Manual
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...70 Fire at If you , return to operate the equipment. 16 Code Meaning Code Meaning 10-19 Nothing for you do not get satisfactory results after performing the above checks, visit www.uniden.com for further information. Changes or modifications not expressly approved by 10-77 Negative contact 10-24 Completed last ...void your authority to 10-65 Awaiting your station 10-91 Talk closer to microphone 10-29 Time is subjected to FCC rules 10-94 Please give me a long count 10-32 I will give you a radio check 10-99 Mission completed, all units secure 10-33 EMERGENCY TRAFFIC 10-...
...70 Fire at If you , return to operate the equipment. 16 Code Meaning Code Meaning 10-19 Nothing for you do not get satisfactory results after performing the above checks, visit www.uniden.com for further information. Changes or modifications not expressly approved by 10-77 Negative contact 10-24 Completed last ...void your authority to 10-65 Awaiting your station 10-91 Talk closer to microphone 10-29 Time is subjected to FCC rules 10-94 Please give me a long count 10-32 I will give you a radio check 10-99 Mission completed, all units secure 10-33 EMERGENCY TRAFFIC 10-...
Owners Manual
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Warrantor, at its option, repair or replace the defective unit and return it to you without charge for one year after the date of original retail sale. THE LIMITED WARRANTY SET FORTH ABOVE IS THE SOLE AND ENTIRE WARRANTY PERTAINING TO THE PRODUCT AND IS ...user shall terminate and be free from defects in materials and craftsmanship with equipment or parts or as part of no further effect one year, to be of any system not manufactured by Uniden, or (F) installed or programmed by anyone other cost (except shipping and handling) incurred by the owner's manual for warranty service...
Warrantor, at its option, repair or replace the defective unit and return it to you without charge for one year after the date of original retail sale. THE LIMITED WARRANTY SET FORTH ABOVE IS THE SOLE AND ENTIRE WARRANTY PERTAINING TO THE PRODUCT AND IS ...user shall terminate and be free from defects in materials and craftsmanship with equipment or parts or as part of no further effect one year, to be of any system not manufactured by Uniden, or (F) installed or programmed by anyone other cost (except shipping and handling) incurred by the owner's manual for warranty service...
Owners Manual
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PROCEDURE FOR OBTAINING PERFORMANCE OF WARRANTY: If, after following the instructions in its original packaging). Include evidence of incidental or consequential damages so the above limitation or exclusion may also have other rights which ...carefully (preferably in the owner's manual you may not apply to you to warrantor at: Uniden America Corporation C/O Saddle Creek 743 Henrietta Creek Road, Suite 100 Roanoke, TX 76262 19 The Product should include all parts and accessories originally packaged with the Product. LEGAL REMEDIES: This warranty gives you specific legal rights, and you...
PROCEDURE FOR OBTAINING PERFORMANCE OF WARRANTY: If, after following the instructions in its original packaging). Include evidence of incidental or consequential damages so the above limitation or exclusion may also have other rights which ...carefully (preferably in the owner's manual you may not apply to you to warrantor at: Uniden America Corporation C/O Saddle Creek 743 Henrietta Creek Road, Suite 100 Roanoke, TX 76262 19 The Product should include all parts and accessories originally packaged with the Product. LEGAL REMEDIES: This warranty gives you specific legal rights, and you...