Uniden America UT407 AM 4W, Mobile CB Station Transceiver User Manual

Uniden America Corporation AM 4W, Mobile CB Station Transceiver

User Manual

Owner’s ManualPrinted in VietnamU01UT407ZZZ(0)®PC78LTD
CUSTOMER CAREAt Uniden®, we care about you!If you need assistance, please do NOT return this product to your place of purchase. Our customer care specialists are available to serve you.Quickly find answers to your questions by:1. Reading your owner’s manual.2. Visiting our customer support website at www.uniden.com.3. Calling our customer care specialists at 1-800-658-8068.Images in this manual may dier slightly from your actual product.Save your receipt/proof of purchase for warranty.© 2015. All rights allowed by law are hereby reserved.Uniden is a registered trademark of Uniden America Corporation.Bearcat is a registered trademark of Uniden America Corporation. Features, specifications, and availability of optional accessories are all subject to change without notice.CONTENTSDESCRIPTION .............................................................................. 5EMERGENCY OPERATIONS .......................................................................... 5WHAT’S IN THE BOX ...................................................................................... 5FRONT VIEW .................................................................................................. 6REAR VIEW ..................................................................................................... 7INSTALLATION ............................................................................ 7MOBILE INSTALLATION ................................................................................ 7Mobile Antenna ........................................................................................... 8Connecting the Power Cords....................................................................... 8Ground Information .................................................................................... 9USING YOUR PC78LTD ............................................................. 10TURN PC78LTD ON/OFF ............................................................................. 10CB MODE ...................................................................................................... 10PA MODE ...................................................................................................... 10HI CUT/OFF .................................................................................................. 11TO TRANSMIT/RECEIVE .............................................................................. 11MULTI-FUNCTION METER .......................................................................... 11PREVENTIVE MAINTENANCE .................................................. 12MAINTENANCE ......................................................................... 12TROUBLESHOOTING ................................................................ 13SPECIFICATIONS ....................................................................... 13RADIO CODE DEFINITIONS ..................................................... 1510-CODES ..................................................................................................... 15SAFETY NOTICE ........................................................................ 16ONE-YEAR EXTENDED WARRANTY ........................................ 17
CONTENTSDESCRIPTION .............................................................................. 5EMERGENCY OPERATIONS .......................................................................... 5WHAT’S IN THE BOX ...................................................................................... 5FRONT VIEW .................................................................................................. 6REAR VIEW ..................................................................................................... 7INSTALLATION ............................................................................ 7MOBILE INSTALLATION ................................................................................ 7Mobile Antenna ........................................................................................... 8Connecting the Power Cords....................................................................... 8Ground Information .................................................................................... 9USING YOUR PC78LTD ............................................................. 10TURN PC78LTD ON/OFF ............................................................................. 10CB MODE ...................................................................................................... 10PA MODE ...................................................................................................... 10HI CUT/OFF .................................................................................................. 11TO TRANSMIT/RECEIVE .............................................................................. 11MULTI-FUNCTION METER .......................................................................... 11PREVENTIVE MAINTENANCE .................................................. 12MAINTENANCE ......................................................................... 12TROUBLESHOOTING ................................................................ 13SPECIFICATIONS ....................................................................... 13RADIO CODE DEFINITIONS ..................................................... 1510-CODES ..................................................................................................... 15SAFETY NOTICE ........................................................................ 16ONE-YEAR EXTENDED WARRANTY ........................................ 17
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5DESCRIPTIONYour Uniden PC78LTD is a high-quality communications device designed for use in the Citizens Band Radio Service. It will operate on any of the 40 AM frequencies authorized by the Federal Communications Commission (FCC).The Citizens Band Radio Service is under the jurisdiction of the Federal Communications Commission (FCC). Any adjustments or alterations which would alter the performance of the transceiver’s original FCC type acceptance, or which would change the frequency determining method, are strictly prohibited. Replacement or substitution of crystal, transistors, ICs, regulator diodes, or any other part of a unique nature, with parts other than those recommend by Uniden, may cause violations of the technical regulations in Part 95 of the FCC Rules or in violation of type acceptance requirements in Part 2 of the rules.EMERGENCY OPERATIONS1. Set the switch to CH9 or turn Channel Selector knob to Channel 9.2. Press the microphone PTT switch and speak clearly.3. If there is no response, select an active channel and ask that party to relay your emergency broadcast on Channel 9.All channels except Channel 9 may be used for normal communication. Channel 9 is reserved by the FCC for emergency communication involving the immediate safety of individuals or protection of property. Channel 9 may also be used to render assistance to others.This is an FCC rule and applies to all operators of CB radios.WHAT’S IN THE BOXCarefully unpack your PC78LTD and check the contents against this list: PC78LTD CB 2-way mobile radio Microphone Mounting Bracket Kit DC Power Cord Owner’s Manual Part 95 Subpart D (FCC Rules)
6If any items are missing or damaged, contact our Customer Care Line immediately at 1-800-658-8068.Never use damaged products!FRONT VIEWItem Denition1Microphone jack2ON OFF - VOLUME: Turns radio on or o; adjusts speaker volume.3SQUELCH: Reduces background noise when there is no incoming signal.4MIC GAIN knob: Adjusts microphone sensitivity5RF GAIN knob: Improves reception in strong signal areas.6SWR CAL: Calibrates the meter for Standing Wave Ratio (SWR) measurements. (See page 11.)7Channel knob: Selects channel.8Channel Display: Displays current channel selection9ANT LED: Indicates a high SWR condition in antenna system. Check antenna, cable, and connections.10 RX/TX LED: Red-transmitting; green-receiving.11 HI CUT/OFF switch: When turned on, cuts high audio frequencies.12 CH9/OFF switch: Instantly tunes to emergency CB Channel 9. Turn o to resume normal channel operations.13 BRT/DIM switch: Adjusts the LED brightness14 CB/PA: Selects CB (Citizen’s Band) or PA (Public Address).Do not use PA function unless an external speaker is connected.621 5 716 9111213141517 81043
7Item Denition15 NB/ANL/ANL/OFF switch: Reduces external noise and interfer-ence from vehicle ignition systems.16 S/RF/SWR/ CAL switch: Selects meter function. S/RF- normal; SWR and CAL are for SWR measurements only. See page 11 for calibration procedures.17 Multi-function meter: Measures SWR, RF and S signal strength.REAR VIEW18212019Item Denition18 Antenna socket: Connects antenna cable to transceiver.19 PA SP. jack: Connects external 8-ohm, 4-watt speaker.To prevent acoustic feedback, separate the microphone from the speaker when operating the PA at high output levels.20 EXT. SP. jack: Connects optional 8-ohm 4-watt speaker to remotely monitor the receiver.When the external speaker is plugged in, the internal speaker is o.21 POWER connector: Connects DC power to transceiverINSTALLATIONMOBILE INSTALLATIONPlan the location of the transceiver and microphone bracket before beginning installation.1. Select a location that is convenient for operating the radio, but does not interfere with the driver or passenger.
82. Install bracket with self-tapping screws provided.3. Connect power cords (see page 8).4. Attach the microphone bracket to the side of the radio.5. Attach radio to bracket.Mobile AntennaWARNING! The antenna used for this radio must be installed at least 17.4 inches (44 cm) away from all persons. The antenna must not be collocated or used with any other antenna or transmitter. CAUTION: Never operate your radio with no antenna or with a damaged antenna cable. This can damage the radio.You must purchase an antenna to operate this radio. Because the maximum power output of the transmitter is limited by the FCC, the quality of your antenna is very important. To achieve the maximum transmission distance, Uniden strongly recommends that you install only a high quality antenna. You have just purchased a superior transceiver - don’t diminish its performance by installing an inferior antenna. Only a properly matched antenna system will allow maximum power transfer from the 50 ohm transmission line to the radiating element. Your Uniden dealer is qualified to help you select the proper antenna for your requirements. A whip style antenna may be used for automobile installation. A short ‘loaded’ whip antenna is easier to install on an automobile, but its efficiency is less than that of a full quarter-wave whip antenna. Connecting the Power CordsUniden recommends connecting the power lead to the Ignition Switch Accessory Terminal. This way, the transceiver is automatically turned off when the ignition switch is turned off. As an alternative, the power cord may be connected to an available terminal on the fuse block or to a point in the wiring harness. However, take care to prevent a short circuit. If in doubt, contact your vehicle dealer for information.
9This transceiver may be installed and used in any 12-volt DC negative ground system vehicle.Ground InformationMost newer U.S. and foreign made cars and small trucks use a negative ground system. Some older cars, and some new large trucks, use a positive ground system.With a negative ground system, the negative (-) battery terminal is usually connected to the vehicle motor block. If you cannot determine the polarity system of your vehicle, contact your vehicle dealer for information.Negative Ground SystemFor negative ground systems, connect the red DC power cord from the transceiver to the positive (+) battery terminal or other convenient point.Then connect the black power cord to the vehicle chassis or negative (-) battery terminal.
10USING YOUR PC78LTDTURN PC78LTD ON/OFFTurn the VOLUME knob clockwise until the unit turns on and the display backlight turns on.Turn the VOLUME knob counter-clockwise to turn the unit off.CB MODEBe sure that the power source, antenna, and microphone are properly connected before proceeding.1. Turn the unit on. Set the volume to a comfortable level.2. Set switch to CB.3. Turn the CH knob to select a CB channel.4. Set noise limitations switch to NB/ANL.5. Adjust squelch.• Adjust SQUELCH knob fully clockwise so only strong signals can get through. • Adjust SQUELCH knob fully counter-clockwise until you hear a hiss. Everything gets through - noise, weak signals, and strong signals.• Slowly adjust SQUELCH knob back clockwise until the hiss stops. Only clearer signals get through.Set SQUELCH only when the radio is not receiving a strong signal.6. Press and hold PTT and check the multifunction meter. It will show the RF output power. 7. Adjust RF GAIN knob set RF Gain sensitivity. Normally, the knob is turned clockwise to maximum.8. Set the brightness (BRT or DIM).9. Set meter switch to S/RF.PA MODEUsing the PA mode requires an optional speaker. 1. Switch to PA. 2. Press and hold PTT to speak.
113. Release when nished. To prevent acoustic feedback, separate the microphone from the speaker when operating the PA at high output levels.If you are in PA mode but not pressing PTT, the radio receives CB transmissions and transmits them through the PA speaker. You cannot respond to the transmission.HI CUT/OFFThe Hi Cut function reduces high frequencies. Switch to HI CUT to turn off higher frequencies.TO TRANSMIT/RECEIVEPerform a voltage Standing Wave Ratio (SWR) measurement prior to using the transmitter. An SWR ratio in excess of 2:1 may damage the transmitter.Be sure to read and understand Part 95, FCC Rules and Regulations before operating your transmitter.1. Select a channel.2. Adjust MIC GAIN.3. When the channel is clear, press the microphone PTT and speak.4. Release PTT when you are nished speaking to listen for the response. MULTI-FUNCTION METERSWR Meter: Measures the standing wave ratio (SWR) of the antenna. Use this meter to check the antenna system or to adjust your antenna to the proper length.To Measure SWR:1. Set the meter switch to CAL.2. Press and hold microphone PTT switch (Transmit).3. Calibrate meter with SWR CAL knob by adjusting the needle to the ▼ mark.4. Move the meter switch to the SWR position while pressing the microphone PTT switch.5. Release the PTT switch.
12A reading less than two is acceptable. Higher readings indicate a problem in the antenna system. Problems may be caused by humidity, vibration, a mistuned antenna, or corrosion. Check both ends of the coaxial cable connector. Also check for damage to the cable or antenna. Tune the antenna according to the instructions that came with the antenna.RF Meter: Measures RF Output Power for transmitter. To use, set the meter switch at S/RF. Press microphone PTT switch to read transmitting power.S-Meter: Measures incoming signal strength. To use, set the meter switch at S/RF. The meter swings to indicate signal strength.i.e. S 3, S 5, S 7 . . .PREVENTIVE MAINTENANCEEvery six months:1. Check the Standing Wave Ratio (SWR). See page 11.2. Be sure all electrical connections are tight.3. Inspect antenna coaxial cable for wear or breaks in shielding.4. Be sure all screws and mounting hardware are tight.MAINTENANCEThe PC78LTD is designed to give you years of trouble-free service. There are no user-serviceable parts inside. Except for the fuse in the DC power cord, no maintenance is required.To replace a blown fuse:1. Press ends of the fuse holder together. Twist to open.2. Carefully separate the two pieces.3. Remove the fuse and inspect. If blown, replace with the same type fuse. Use only the fuse specied for your PC78LTD. Failure to do so may void your warranty.
13TROUBLESHOOTINGIn the event of system malfunction, perform the following procedures: Problem SuggestionUnit does not power up Check the ignition key position.Check power cord connections. Check fuse. Check vehicle electrical system.No reception Check microphone connection. Set CB/PA to CB. Check VOLUME and SQUELCH. Check antenna. Check antenna connection. Adjust RF Gain. Poor Reception Check VOL and SQ. Be sure antenna SWR is normal.Adjust RF Gain.No Transmission Set CB/PA switch to CB. Check microphone connection.Adjust MIC Gain. Low Transmission Be sure antenna SWR is normal.Adjust MIC Gain. Calibration does not move the meter needle to the left sideAdjust the antenna length.Check all antenna connections.If you do not get satisfactory results after performing these checks, call the Uniden Customer Service Center at 1-800-297-1023, 8:00 a.m. to 4:30 p.m. CST, Monday through Friday.SPECIFICATIONSGENERALChannel: 40CB Frequency Range: 26.965 - 27.405 MHzFrequency Control: PLL synthesizerAntenna Impedance 50 ohmsFrequency Tolerance: ±0.002%Operating Temperature: CB: -22°F to 140°F (-30°C to 60°C)Microphone: Plug-in type; 600 ohms dynamicPower Input : 13.8VDC
14Current Drain: TX: AM Full Modulation: 2.2A (max)RX: Squelched, 0.4 A; with maximum audio output, 1.2A (nominal)Size (W x D x H): 7-9/32 in. x 7-51/64 in. x 2-13/64 in. (without knobs and jacks)Weight: 3 lb with microphoneAntenna Connector: UHF, SO-239TRANSMITTERPower Output: 4 wattsModulation: High- and Low-Level, Class B amplitude modulationFrequency Tolerance ± 0.002%Frequency Response: 300 - 3000 HzSpurious Rejection -70dBOutput Impedance: 50 ohm, unbalancedRECEIVERSensitivity at 10 dB (S+N)/N: <1 µV for 10 dB, (S+N)/NSelectivity: 6 dB @ 7 kHz; 60 dB @ 10 kHzImage Rejection: 80 dB typicalAdjacent-CH Rejection: 60 dB typicalIF Frequencies: Double Conversion: 1st: 10,695 MHz2nd: 455 kHzAutomatic Gain Control: Less than 10 dB change in audio output for inputs from 10 to 50,000 µV.RF Gain Control: Adjustable for optimum signal receptionNoise Blanker: RF typeSquelch: Adjustable; threshold <1 µVAudio Output Power: 4 WattsFrequency Response: 300 to 3000 HzDistortion: Less than 7% at 3 Watts, 1000 HzInternal Speaker: 16 oms, roundExternal Speaker (not supplied): 8 ohms; disables internal speaker when connectedAntenna Impedence 50 ohmsSquelch Tight 1000 µVSignal Meter S-9: 100 µV
15PA SYSTEMPower Output: 4 Watts into external speakerExternal Speaker for PA Speaker (not supplied):8 ohms when CB/PA switch in in PA. The PA also monitors the receiver; separate jack provided. Specications shown are typical and subject to change without notice. RADIO CODE DEFINITIONS 10-CODESThe following list contains common “10-Codes” used by CB radio operators for faster communication and better understanding. Code Meaning Code Meaning10-1 Received poorly 10-34 Trouble at this station 10-2 Receiving well 10-35 Condential information 10-3 Stop transmitting 10-36 Correct time is 10-4 OK, message received 10-37 Wrecker needed at 10-5 Relay message 10-38 Ambulance needed at 10-6 Busy, stand by 10-39 Your message is delivered 10-7 Out of service, leaving air 10-41 Please turn to channel 10-8 In service, subject to call 10-42 Trac accident at 10-9 Repeat message 10-43 Trac tie up at 10-10 Transmission completed, standing by 10-44 I have a message for you 10-11 Talking too rapidly 10-45 All units within range please report 10-12 Visitors present 10-50 Break channel 10-13 Advise Weather/ Road conditions 10-60 What is next message number 10-16 Make pickup at 10-62 Unable to copy, use phone 10-17 Urgent business 10-63 Net directed to 10-18 Anything for us? 10-64 Net clear
16Code Meaning Code Meaning10-19 Nothing for you, return to base 10-65 Awaiting your next message/as-signment 10-20 My location is 10-67 All units comply 10-21 Call by telephone 10-70 Fire at 10-22 Report in person to 10-71 Proceed with transmission in sequence 10-23 Stand by 10-77 Negative contact 10-24 Completed last assignment 10-81 Reserve hotel room for 10-25 Can you contact 10-82 Reserve room for 10-26 Disregard last information 10-84 My telephone number is 10-27 I am moving to channel 10-85 My address is 10-28 Identify your station 10-91 Talk closer to microphone 10-29 Time is up for contact 10-93 Check my frequency on this channel 10-30 Does not conform 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 10-200 Police needed at If you do not get satisfactory results after performing the above checks, call the Uniden Customer Service Center at 1-800-297-1023, 8:00 a.m. to 4:30 p.m. CST, Monday through Friday.SAFETY NOTICEThe antenna used for this radio must be properly installed and maintained and must provide a separation distance of at least 44 cm (17.4 inches) from all persons and must not be collocated or operated in conjunction with any other antenna or transmitter. Never transmit if any person is closer than the specified distance to the antenna. Note that Uniden does not specify or supply any antenna with this transceiver. While a 0 dBi gain antenna is normal for a typical installation, the above limit applies to any antenna with up to 3 dBi gain.
17This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.Cet appareil est conforme la norme d’Industrie Canada exempt de licence RSS (s). Son fonctionnement est soumis aux deux conditions suivantes : (1) cet appareil ne peut pas provoquer d’interférences, et (2) cet appareil doit accepter toute interférence, y compris les interférences qui peuvent causer un mauvais fonctionnement de l’appareil.Tous les changements apportés à cet appareil, s’ils ne sont pas expressément approuvés par Uniden ou toute utilisation de celui-ci d’une autre manière que celle décrite dans ce guide peut annuler votre autorisation de le faire fonctionner.Un guide d’utilisation en français peut être téléchargé à l’adresse suivante :http://www.uniden.com/.ONE-YEAR EXTENDED WARRANTYImportant: Evidence of original purchase is required for warranty service.WARRANTOR: UNIDEN AMERICA CORPORATION (“Uniden”)ELEMENTS OF WARRANTY: Uniden warrants, for one year, to the original retail owner, this Uniden Product to be free from defects in materials and craftsmanship with only the limitations or exclusions set out below.WARRANTY DURATION: This warranty to the original user shall terminate and be of no further effect one year after the date of original retail sale. The warranty is invalid if the Product is (A) damaged or not maintained as reasonable or necessary, (B) modified, altered, or used as part of any conversion kits, subassemblies, or any configurations not sold by Uniden, (C) improperly installed, D) serviced or repaired by someone other than an authorized Uniden service center for a defect or malfunction covered by this warranty, (E) used in any conjunction with equipment or parts
18or as part of any system not manufactured by Uniden, or (F) installed or programmed by anyone other than as detailed by the owner’s manual for this product.STATEMENT OF REMEDY: In the event that the product does not conform to this warranty at any time while this warranty is in effect, warrantor will either, at its option, repair or replace the defective unit and return it to you without charge for parts, service, or any other cost (except shipping and handling) incurred by warrantor or its representatives in connection with the performance of this warranty. Warrantor, at its option, may replace the unit with a new or refurbished unit. THE LIMITED WARRANTY SET FORTH ABOVE IS THE SOLE AND ENTIRE WARRANTY PERTAINING TO THE PRODUCT AND IS IN LIEU OF AND EXCLUDES ALL OTHER WARRANTIES OF ANY NATURE WHATSOEVER, WHETHER EXPRESS, IMPLIED OR ARISING BY OPERATION OF LAW, INCLUDING, BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. THIS WARRANTY DOES NOT COVER OR PROVIDE FOR THE REIMBURSEMENT ORPAYMENT OF INCIDENTAL OR CONSEQUENTIAL DAMAGES. Some states do not allow this exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you.LEGAL REMEDIES: This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. This warranty is void outside the United States of America.PROCEDURE FOR OBTAINING PERFORMANCE OF WARRANTY: If, after following the instructions in the owner’s manual you are certain that the Product is defective, pack the Product carefully (preferably in its original packaging). The Product should include all parts and accessories originally packaged with the Product. Include evidence of original purchase and a note describing the defect that has caused you to return it. The Product should be shipped freight prepaid, by traceable means, to warrantor at:Uniden America Corporation C/O Saddle Creek
19743 Henrietta Creek Road, Suite 100 Roanoke, TX 76262(800) 297-1023, 8 a.m. to 5 p.m., Central, Monday through Friday
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