Uniden PC122AM/SSB User's Manual
Contents
1. PC 15 amissa OWNERS MANUAL qp paan m Aai WELCOME To the world of sophisticated microprocessor controlled AM SSB radio communica tions Your Uniden PC 122 represents the most advanced mobile type radio ever designed for use in the Citizens Band Radio Service It will operate on any of the 40 AM frequencies and Upper and Lower Side Band Frequencies designated by the Department of Communications Your PC 122 features a frequency synthesizing circuit with PHASE LOCK LOOP techniques to assure precise frequency control This radio has been type accepted and certified by the D O C WARNING Before transmitting with your transceiver you must obtain a Department of Communications D O C Citizens Radio Licence Obtain an application form from the D O C Before completing the form you should read the conditions governing the licensing and operation of the C R S D O C brochure RB 249 This brochure also can be obtained from the D O C After completing the application form mail it with the appropriate fee to the Superintendant Regulatory of Licensing in the State or territory in which the station will be operated MOBILE INSTALLATION Plan the location of the radio and microphone bracket before starting installation Select a location that is convenient for operation and does not interfere with the driver or passenger in the vehicle The radio should be securely fastened to a solid surface using the mounting brack2. 55dB speaker JOKA O Og Ok E AA LP PLA RIKIAJA AJA JA AJA J WTC TANI UTSN01549DZ uniden 12 MONTHS FULL WARRANTY WARRANTOR SANTRONIC AGENCIES PTY LTD 13 Garema Circuit Kingsgrove NSW 2208 SANTRONIC ELEMENTS OF WARRANTY SANTRONIC warrants for the duration of this warranty its UNIDEN CB Product to be free from defects in materials and crafts manship with only the limitation or exclusions set out below WARRANTY DURATION This Warranty shall terminate and be of no further effect One 1 year after the date of original purchase of the Product or at the time the Product is a damaged or not maintained as reasonable and necessary b modified c improperly installed d is repaired by someone other than Warrantor for a defect or malfunction covered by this Warranty or e used in a manner or purpose for which the Product was not intended PARTS COVERED This Warranty covers all components of the Products STATEMENT OF REMEDY In the event that the Product does not conform to this Warranty at any time while this Warranty is effective Warrantor will repair the defect and return it to you prepaid without charge for parts service or any other costs incurred by Warrantor or its representatives in connection with the performance of this Warranty In addition if the Product contains a defect or malfunction which is not repaired after a reasonable number of attempts by Warrantor to repair the Product the
3. Product or defective component will at our discretion be replaced without charge when the defective product is delivered to the warrantor at 13 Garema Circuit Kingsgrove NSW 2208 free and clear of all liens and encumbrances Please note that while the Product will be remedied under this Warranty without charge THIS WARRANTY DOES NOT COVER OR PROVIDE FOR THE REIM BURSEMENT OR PAYMENT 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 PROCEDURE FOR OBTAINING PERFORMANCE OF WARRANTY In the event that the Product does not conform to this Warranty the Product should be shipped prepaid to Warrantor at 13 Garema Circuits Kingsgrove NSW 2208 THE ORIGINAL OR COPY OF THE SALES RECEIPT OR OTHER VALID EVIDENCE OF THE DATE OF THE ORIGINAL PURCHASE MUST ACCOMPANY THIS PRODUCT LEGAL REMEDIES This Warranty gives you specific legal rights and you may also have other rights which vary from state to state S nironic AGENCIES PTY LTD 13 GAREMA CIRCUIT KINGSGROVE PHONE 758 1522 TELEX AA73170 P O Box 12 Kingsgrove NSW 2208 BRISBANE 3 12 RANDALL ST SLACKS CREEK OLD 4127 PHONE 07 290 1188 Copyright 1985 Uniden Corporation N Gay A 5 VIRTA 5 RGR SR N A 25 2 SY A E a fee r ETY ANITA er se oh Nar Printed in Taiwan
4. ctor permits connection of the transmission line cable male connector PL 259 to the transceiver PUBLIC ADDRESS An external 8 ohm 4 watt speaker must be connected to the PA SP jack located on the back of the unit The speaker must be directed away from the microphone to prevent feedback EXTERNAL SPEAKER The external speaker jack is used for remote receiver monitoring The external speaker should have an 8 ohm impedance and be rated at least 4 watts When an external speaker is connected the internal speaker is disabled POWER This plug permits connection of the DC power to the transceiver The supplied DC Cord s plug is polarized which ensures that power will always be connected and fused properly OPERATING PROCEDURE TO RECEIVE mf O NS Be sure that the power source antenna and microphone are properly connected Turn the unit on by rotating the Volume control clockwise Set the channel selector switch to the desired channel Set the Volume control to a comfortable listening level Listen to the background noise from the speaker Turn the Sguelch control clock wise until the noise disappears no signal should be present Leave the control at i this setting The squelch is now properly set The receiver will remain quiet until a signal is actually received Do not advance the control too far or some weaker signals will not be heard OPERATING PROCEDURE TO TRANSMIT 1 Select the desired chann
5. el for transmission 2 If the channel is clear depress the push to talk switch on the side of the micro phone and speak in a normal voice CAUTION The transceiver Voltage Standing Wave Ratio V S W R measurement must be performed prior to the use of the transmitter A V S W R ratio in excess of 2 1 may damage the transmitter OPERATION OF SSB Choose the desired side band frequency by A select standard channel 1 40 B select Upper or Lower side band by moving AM SSB switch Transmit or receive according to previous instructions When receiving a side band transmission you may need to use the Clarifier control to fine tune that frequency Rotate the Clarifier clockwise or counterclockwise for optimum reception PREVENTATIVE MAINTENANCE At six to twelve month intervals the following system checks should be made 1 Check the Standing Wave Ratio V S W R 2 Inspect all electrical connections 3 Inspect antenna coaxial cable for wear 4 Inspect all screws and other mounting hardware TROUBLE SHOOTING If your PC 122 is not performing up to your expectations please try these simple steps If you still cannot get satisfactory results after reading this manual and following the trouble shooting steps you may need to have your unit serviced trouble check Unit will not turn on No power Check power cord and all connections Check power cord fuse Check vehicle electrical system Check and adj
6. et and self tapping screws which are provided MOBILE ANTENNA Since the maximum allowable power output of the transceiver is limited by the D O C the antenna is a very important factor affecting transmission distance It is for this reason that we strongly recommend that you install only a guality antenna in your new CB radio system You have purchased a superior quality transceiver Don t diminish its performance by installing an inferior antenna Only a properly matched antenna system will allow maximum power transter trom tne 50 ohm transmission line to the radiating element We recommend that you use an SWR meter when installing your antenna Set your PC 122 to channel 20 and adjust to SWR 1 Your SANTRONIC dealer is gualified to assist you in the selection of the proper antenna to meet your application reguirements For automobile installation the whip antenna may be used with good effect The most efficient and practical installation is a full quarter wave whip antenna mounted on the rear deck or fender top midway between the rear window and bumper A short loaded whip antenna is more convenient to install on your automobile although the efficiency is less than a full guarter wave whip antenna For marine installation consult your dealer for information regarding an adeguate grounding system and prevention of electrolysis between fittings on the hull and water CONNECTING THE POWER CORDS With regard to the connection o
7. f the power cords it may be possible or desirable to connect the red lead for negative ground systems or the black lead for positive ground systems to the ignition switch accessory terminal so that the radio is auto matically turned off when the ignition switch key is turned off Alternately the power lead may be connected to an available terminal on the fuse block or even to a point in the wiring harness Care must be taken however to guard against a short circuit condition When in doubt please contact your vehicle dealer for specific information for your vehicle GROUND INFORMATION A negative ground system is generally identified by the battery terminal being connected to the vehicle motor block but if you cannot determine the polarity of your vehicle consult your vehicle dealer for information NOTE This radio may be installed and used in any 12 volt DC negative or positive ground system NEGATIVE GROUND SYSTEM If you are operating on a negative ground system connect the red DC power cord from the radio to the positive battery terminal or other convenient point and connect the black power lead to the chassis or vehicle frame or the negative terminal of the battery POSITIVE GROUND SYSTEM If you are operating on a positive ground system connect the black DC power cord from the radio to the negative battery terminal or other convenient point and connect the red power lead to the chas
8. sis or vehicle frame or the positive terminal of the battery a CONTROLS AND FUNCTIONS SOUELCH The squelch control is used to eliminate background noise during the absence of a transmission Turn the control fully counterclockwise then slowly rotate it back clockwise until all noise disappears At this setting any transmission must be slightly stronger than the background noise to Break Squelch or to be heard Further clockwise rotation will increase the threshold at which a signal will be heard You can select any level to Break Squelch S RF METER This LED meter shows the relative strength of the received signal or transmit power CHANNEL INDICATOR Displays the channel currently in use CHANNEL SELECTOR This switch selects the desired channel for transmission and reception All channels except channel 9 may be used for communications between stations operating under different license Channel 9 has been reserved by the D O C for emergency communications involving the immediate safety of individuals or the immediate protection of property Channel 9 also may be used to render assistance to a motorist This is the D O C rule and applies to all opera tors of CB radios 5 TX INDICATOR An LED lights to indicate when the radio is transmitting MICROPHONE The operational mode of the CB is controlled by the push to talk switch on the microphone Press the switch to activate the
9. transmitter and disable the receiver Release the switch to enable the receiver and disable the transmitter When transmitting hold the microphone about 2 inches from your mouth and speak clearly in a normal voice The microphone included with the PC 122 is a detachable low impedance dynamic type RF GAIN This control is used to adjust signal reception in areas where strong signals are present Turn the control fully clockwise for maximum reception VOLUME CONTROL Rotate clockwise to turn radio on and to increase volume e 9 10 11 12 13 14 15 16 NB ANL SWITCH You can select either Noise Blanker and Automatic Noise Limiter only Automatic Noise limiter or all filters OFF The NB and ANL help to reduce harsh background noise caused by a variety of interference sources The ANL will not work in the USB or LSB mode PA SWITCH Move this switch to the Public Address mode when an external PA speaker is connected When the PA mode is selected you can use the PA function and yet can monitor CB incoming signals Adjust the PA output level by rotating the volume control AM SSB SELECTOR The three position switch allows you to select AM standard 40 channel CB or USB Upper Side Band or LSB Lower Side Band operation CLARIFIER Turn this control to achieve the best tuning of the upper or lower side band receiving frequency TAIWAN R OC ANTENNA CONNECTOR This female conne
10. ust Squelch Check antenna system and cable connectors Check operation mode of the radio Poor reception Check antenna system and cable connectors Check antenna grounding Check for corrosion on connectors Weak transmission 3 1 lt 0 N J N ee as IT you determine that service is necessary contact your local dealer or pack the unit in its original carton Send it along with a brief concise description of the problem your name address phone number and a copy of the original purchase receipt to the address listed in the warranty SERVICING YOUR CB Technical information diagrams and charts will be provided upon request It is the user s responsibility to see that this radio is operating at all times in accordance with the D O C Citizens Radio Service regulations We highly recommend that you consult a qualified radiotelephone technician for service and alignment of this radio When ordering parts it is important to specify the correct model number and serial number of this radio Please refer to the WARNING information on the first page of this manual SPECIFICATIONS GENERAL Unwanted Sideband Better than 50dB Channels 40 AM 40 USB 40 LSB Freq Response 300 3000 Hz Frequency Range 26 965 to 27 405 MHz Output Impedance 50 ohms unbalanced Frequency Control Phase Lock Loop PLL SSB Filter 10 695 MHz 8 pole synthesizer monolithic type 6dB Frequency Tolerance 0 005 4 2KH
11. z 60dB amp 7 0KHz Operating Temp 30 C to 50 Microphone Plugin type dynamic RECEIVER Input Voltage 13 8 VDC nom or Sensitivity SOB Better than 25 uV ground for 10dB S N N Current Drain TX AM full mod 2 2 A greater than 1 2 watt of SSB 12 watts PEP out audio output AM Bet put 2 A ter than 5 uV for 10 dB RX AM amp SSB with max 5 N N amp greater than audio output 0 6 A 1 2 watt of audio output Size 6 W x 74 D x 2 H Selectivity SSB and AM 6dB 4 2 Weight 2 Ib 10 oz KHz 60dB amp 7 0KHz Antenna Connector UHF S0 239 Cross Modulation More than 50dB Semiconductors 41 transistors 7 IC 49 Image Rejection More than 75dB diodes I F Frequency AM and SSB 10 695 LED Meter Indicates relative power MHz output and receive signal Automatic Gain AGC less than 10dB strength Control change in audio output for inputs from 10 to TRANSMITTER 500 000 microvolts Power Output AM 4 watts SSB 12 Squelch Adjustable threshold less watts P E P than 5 uV Modulation Class B amplitude Clarifier 11 5KHz modulation Audio Output Power 3 watts into 8 ohms Intermodulation Freg Response 350 to 2500 Hz Distortion 55B 3rd and 5th order Distortion Less than 10 at 3 watts better than 25dB 7th output and 9th order better than Internal Speaker 16 ohms round 35dB External Speaker not supplied 8 ohms SSB Carrier PA System 3 watts in external 8 ohm Suppression Better than
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