Manual Radio CB
Manual Radio CB
nl
        OWNER'S MANUAL
  Full Channel AM/FM/SSB Mobile
       Built in Frequency Counter
AM/FM 10W S S B 21W with Roger Beep
                               TABLE OF CONTENTS
Specifications
Installation
     Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
    Mounting the Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
    Ignition Noise Interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
     Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
   . Tuning the Antenna for Optimum SWR . . . . . . . . . . . . . . . . . . . . . . . 6
     Ext . Speaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 7
Operation
  Control Functiom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
  Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
  RearPanel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
  Press-To-~alkMicrophone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
  Operatiq Procedure to Receive . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
  O~eratingProcedure to Transmit . . . . . . . . . . . . . . . . . . . . . . . . . . 11
  Receiving SSB signais . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
  RogerBeep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
  Alternate Microphones and Installation . . . . . . . . . . . . . . . . . . . . . . 14
  A Few Rules That Should ~e Obeyed . . . . . . . . . . . . . . . . . . . . . . . 17
  Frequency Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
i   GENERAL
      Channels
    TRANSMITTER
      Power Output                   AM/FM/CW, 1 0 watts.
                                     SSB, 2 1 watts PEP.
      Modulation                     High-and low-level Class B, Amplitude Modu-
                                     lation: AM. Variable capacitance Frequen-
                                     cy Modulation: FM.
      Intermodulation Distortion     SSB: 3rd order, more than -25 dB.
                                           5 t h order, more than -35 dB.
      SSB Carrier Suppression        55 dB
      Unwanted Sideband              5 0 dB
  Frequency Response            AM and FM: 450 t o 2500 Hz.
  Output Impedance              50 ohms, unbalanced.
  Output Indicators             Meter shows relative RF output power and
                                SWR. Transmit LED glows red when trans-
                                mitter is in operation.
RECEiVER
  Sensitivity                   SSB: 0.25 p V for 10 dB (s+N)/N at greater
                                than %-watt of audio output.
                                AM: 1.0 p V for 10 dB (S+N)/N at greater
                                than %-watt of audio output.
                                FM: 1.O p V for 20 dB (S+N)/N at greater
                                than Kwatt of audio output.
  Selectivity                   AM/FM: 6 dB @3 KHz, 50 dB @ KHz.
                                SSB: 6 dB ($2.1 KHz, 60 dB @3.3 KHz.
  Image Rejection               More than 65 dB.
  I F Frequency                 AMIFM: 10.695 MHz 1st IF, 455 KHz 2nd IF
                                SSB: 10.695 MHz.
   Adjacent-Channel Rejection   60 dB AM/FM & 70 dB SSB.
   RF Gain Control              45 dB adjustable for .optimum signal recep-
                                tion.
   Automatic Gain Control       Less than 10 dB change in audio output for
         (AGCI                  inputs from 10 t o 100,000 microvolts.
   Squelch                      Adjustable; threshold less than 0.5 p V ,
   ANL                          Switchable.
   Noise Blanker                R F type, effective o n AM/FM and SSB.
   Clarifier Range              Coarse (TX/RX) 25 KHz.
                                Fine (TX/RX) 21 KHz. (or RX only)
   Audio Output Power           4 watts into 8 ohms.
   Frequency Response           300 t o 2800 Hz.
   Built-in Speaker             8 ohms, round.
   Extemal Speàker              8 ohms; disables interna1 speaker when con-
     (Not Supplied)             nected.
Installation
LOCATION
    Plan the location of the transceiver and microphone bracket before starting
the installation. Select a location that is convenient for operation and does not
interfere with the driver o r passengers in the vehicle. In automobiles, the trans-
ceiver is usually rnounted.below the dash panel, with the microphone bracket
beside it.
ANTENNA
    A vertically polarized, quarter-wavelength whip antenna provides the most
reliab!e operation and greatest range. Shorter, loaded-type whip antennas art:
more attractive, compact and adequate for applications where the maximum
possible distance is not required. Also, the loaded whips d o not present the
problems o f height imposed by a full quarter-wavelength whip.
    Mobile whip antennas utilize the metal body o f the vehicle as a ground plane.
When mounted at a corner of the vehicle they are slightly directional, in the
direction of the body of the vehicle. For al1 practical purpose, however, the
radiation pattern is nondirectional. The slight directional characteristic will be
observed only at extreme distances. A standard antenna connector (type SO
239) is provided on the transceiver for easy connection t o a standard PL 259
cable termination.
    If the transceiver is not mounted on a metal surface, it is necessary t o run a
separate ground wire from the unit to a good metal electrical ground in the
vehicle. When installed in a boat, the transceiver wiil not operate at maximum
efficiency without a ground plate, unless the vesse1 has a steel hull.
    Before installing the transceiver in a boat, consult your dealer for information
regarding an adequate grounding system and prevention of electrolysis between
fittings in the hull and water.
    TUNING THE ANTENNA FOR OPTIMUM SWR
       Since there is such a wide variety of base and mobile antennas, this section
    will strictly concern itself t o the various types of mobile adjustable antennas.
       Because the antenna length is directly related t o the channel frequency, it
/   must be tuned t o resonate o p t i m d y d 271 channels of the transceiver. Channel
    1 requires a longer antenna than c h a r n e l 271 because it is lower in frequency.
       Due t o the various methods of adjusting antennas for proper SWR we have
    chosen what we think is the optimum method:
       7NOTE -
             P
         THE PROPER SETTINC IS ACHIEVED WHEN THE SWR IS 1.5 O R
         BELOW, AND WHEN IT HAS THE SAME READING FOR A BAND
         CHANNEL 1 AND F BAND CHANNEL 40.
    If you are having difficulties in adjusting your antenna, check the following:
       A. Ali doors must be closed when adjusting the antenna.
       B. Make sure the antenna base is grounded.
       C. Check your coaxial cable routing (it may be pinched when routed into the
          car).
  D. Try a different location on your car (keeping in mind the radiation pattern
     you wish).
  E. 1s the antenna perfectly vertical?
  F. Try a different location in your neighborhood. Stay away from large metai
     objects when adjusting (metal telephone or light posts, fences, etc.)
Ex temal Speaker
   The extemai speaker jack (EXT. SPK.) on the rear panel is used for remote
receiver. monitoring. The extemal speaker should have 8 ohms impedance and be
able t o handle at least 4 watts. When the externai speaker is plugged in, the
internal speaker is disconnected.
    Operation
    CONTROL FUNCTIONS
       There are Fifteen controls and four indicators on the front panel of your
    transceiver
1   FRONT PANEL
     I . OFF/ON/VOLUME            Turn clockwise to apply power to the unit and to set
         the desired listening level. Dunng normal CB operatioq the VOLUME con-
         trol is used t o adjust the output level obtained either at the transceiver
         speaker or the extemal speaker, if used.
     2. SQUELCH This control is used. to cut off or eliminate receiver background
         noise in the absence of aq incoming signal. For maximum receiver sensitivity
         it is desired that the control be adjusted oniy to the point where the receiver
         background noise or ambient background noise is eliminated. Tum fully coun-
         terclockwise then slowly clockwise until the receiver noise disappears. Any
         signal to be received must now be slightly stronger than the average received
         noise. Further clockwise rotation wiii increase the threashold level which a
         signal must overcome in order to be heard. Only strong signals wiil be heard
         at a maximum clockwise setting.
     3. MIC GAIN (inner dud concentnc). Adjusts the microphone gain in the
          transmit and PA modes. This controls the gain to the extent that full talk
          power is availabie several inches away from the microphone.
     4. RF C A M CONTROL (outer dud concentnc). Use to reduce the gain of the
        RF aniplifier under strong signal conditions.
     5.   SWR CAL CONTROL (inner concentric). In order for you t o achieve
          maximum radiated power and the longest range, it is important that your
          antenna be in good condition, properly adjusted and matched t o your
          transceiver. The built-in SWR (standing wave ratio) meter lets you easily
   measure your antenna condition. To operate this function, connect your
   antenna to the transceive antenna output connector. Select a channel
   near the middle of the band such as 2 1 or the channel you plan t o use most
   frequently. Turn the power on and set the meter function switch t o the
   CAL position. Ress and hold the microphone push-to-taik button and using
   the SWR CAL control, adjust the meter to read the CAL position indicated
   on the meter face. Then, without releasing the microphone button, switch
   the meter function switch to the SWR position and read the SWR indicated.
   The lower the figure, the better with 1 being ideal. Generaiiy speaking,
   reading up to 3 are acceptable, but over 3 indicates that yoù are losing
   radiated power and antenna adjustment may be advisable.                        1
   R F POWER (outer concentric). Adjust this control t o acquire R F power
   level you desired in AM or FM transmission.
                                                                                  1
                                                                                  1
REAR PANEL
20. POWER. Accepts 13.8V DC power cable with built-in fuse (4 amp.) t o be
    connected.
21. EXT SP. Accepts 4 to 8 ohm, 5 watt external speaker to be connected.
    When external speaker is connected to this jack, the built-in speaker is
    automatically disconnected.
22. ANTENNA. Accepts 50 ohm coaxial cable with a type PL-259 plug to be
    connected .
PRESSTO-TALK MICROPHONE
The receiver and transmitter are controlled by the press-to-talk switch on the
microphone. Press the switch and the transmitter is activated, release switch t o
receive. When transmitting, hold the microphone two inches from the m o u t h
and speak clearly in a normal "voice". The radios come complete with low-
impedance (500 ohm) dynamic microphone. For installation instructions on
other microphones, see next section, "ALTERNATE MICROPHONES AND
INSTALLATION."
- - - - - -- - TX
            +
      2- - - - - - - - - - - - - -
  PRESS-TO-TALK O N
                                        1
                                          ---L----
                              PRESS-TO-TALK OFF
1   ALTERNATE MICROPHONES AND INSTALLATION
       For best results, the user should select a low-impedance dynamic type micro-
    phone o r a transistorized microphone. Transistorized type microphones have a
    low output impedance characteristic. The microphones must be provided with a
    four-lead cable. The audio conductor and its shielded lead comprise two of the
    leads. The fourth lead is for receive control, and third is for transmit control.
    The microphone should provide the functions shown in schematic below.
    If the microphone t o be used is provided with pre-cut leads, they must be revised
    as follows.
    1. Cut leads s o that they extend 7/16" beyond the plastic insulating jacket of
        the microphone cable.
    2. All leads shoudl be cut t o the same length. Strip the ends o f each wire 118"
        and tin the exposed wire.
       Before begining the actual wiring read carefully, the circuit and wiring infor-
    mation provided with the microphone you select. Use the minimum head re-
    quired in soldering the connections. Keep the exposed wire lengths t o a mini-
    mum t o avoid shorting when the microphone plug is reassembled.
 1                                        KNURLED                                   1
                                          PIN
                                      RECEPTACLE     \   CABLE CLAMP
                                                       RETAINER ScREwQI
                                               RETAlNlNG
                                                 SCREW
      Be sure that the housing and the knurled ring of Fig. 3 are pushed back o n t 0
-     the microphone cable before starting t o solder. If the washer is not captive t o
      the pin receptacle body, make sure that it is placed on the threaded portion
      o f the pin receptacle body before soldering.
      If the microphone jack is used t o hold the pin receptacle during the soldering
      operation, best results are obtained when the connections t o pins 1 and 3 are
      made first and then the connections t o pins 2.and 4. Use a minimum amount
      of solder and be careful t o prevent excessive solder accumulation on pins,
      which could cause a short between the pin and the microphone plug housing.
    6. When al1 soldering connections t o the pins of the microphone plug are com-
       plete, push t h e knurled ring and the housing forward and screw the housing
       o n t 0 the threaded portion of the pin receptacle body. Note the location o f
       the screw clearance hole in the plug housing with respect t o the threaded hole
       in the pin receptacle body. When the housing is completely threaded into the
       pin receptacle body, a final fraction of a turn either clockwise o r counter-
       clockwise may be required t o align the screw hole with the threaded hole in
       the pin receptacle. body. When these are aligned, the retaining screw is then
       screwed into the place t o secure the housing t o the pin receptacle body.
    7. The two cable clamp retainer screws should now be tightened t o secure the
       housing t o the microphone cord. If the cutting directions have been carefully
       followed, the cable clamp should secure t o the insulating jacket of the micro-
       phone cable.
    8. Upon completion of the microphone plug wiring, connect and secure the
       microphone plug in the transceiver.
                                                 -
                                                                                     7
2. You are not ailowed t o carry on a conversation with another station for more
   than five minutes at a. time without taking a one-minute break, t o give others
   a chance t o use the channel.
3. You are n o t ailowed t o blast others off the air b y over-powering- them with   !
   illegaliy amplified transmitter power, or illegally high antennas.
                                                   A N T FREQUENCY (MHz)
         A BAND                B     BAND           C BAND          D BAND                E BAND             F BAND
Chn     Nor   +10            Nor        +10       Nor      +10        Nor      +10      Nor      +10       Nor       +10
 nl     mai   KHz            mal        KHz       mJ       KHz        mai       KHz     mal      KHz       mai       KHz
1     26.065    26.075      26.515     26.525    26.965   26.975    27.415    27.425   21865    27.875    28.315    28.325
2     26.075    26.085      26.525     26.535    26.975   26.985    27.425    27.435   27.875   27.885    28.325    28.335
3     26.085    26.095      26.535     26.545    26.985   26.995    27.435    27.415   27.885   27.895    28.335    28.355
                 (3A)                   (3A)               (3A)                (3A)              (3A)      (3A)      (3.4)
4     26.105    26.115      26.555     26.565    27.005   27.015    27.455    27.465   27.905   27.915    28.355    28.365
5     26.115    26 125      26.565     26.575    27.015   27.025    27.465    27.475   27 915   27 925    28.365    28.375
6     26.125    26.135      26.575     26.585    27.025   27.035    27.475    27.485   27925    27.935    28.375    28.385
7     26.135    26.145      26.585     26.595    27.035   27.M5     27.485    27.495   27935    27945     28.385    28.405
                 (7A)                   (7A)               (7A)                (7A)              (7A3      (7A)      (TA)
8     26.155    26.165      26.605     16.615    27.055   27.065    27.505    27.515   27.955   27965     28.405    28.415
9     26.165    26 175      26.615     26.625    27.065   27.075    27.515    27.525   27 965   27 975    28.415    28.425
10    26.175    26.185      26625      26.635    27.075   17.085    27.525    27.535   27.975   27.985    28.425    28.435
11    26.185    26.195      26.635     26.645    27.085   27.095    27.535    27.545   27.985   27.995    28.435    28.455
                 (1 I A )               (IIA)              (IIA)               (IIA)             (IlA)    (11A)     (1IA)
12    26.205    26.215      26.655     26.665    27.105   27.115    27.555    27.565   28005    28.015    28.455    28.465
13    26.215    26 225      26.665     26.675    27.115   27.125    27.565    27.575   28 O15   28.025    28.465    28.415
 14   26.225    26.235      26.675     26.685    27.125   27.135    27.575    27585    28.025   28.035    28.475    28.485
 15   26.235    26.245      26.685     26.695    27135    27.145    27.585    27.595   28.035   28045     28.485    28.505
                 (\SA)                  (ISA)             (15A)                (15A)             (15A)    (15A)     (15A)
 16   26.255    26.265      26.705     26.715    27.155   27.165    27.605    27.615   28055    28.065    28.505    28.515
 17   26.265    26.275      26.715     26.725    27.165   27.175    27.615    27.625   28065    28.0U     288.15    28.525
 18   26.275    26.185      26.725     26.735    27.175   27.185    27.625    27635    28075    28.085    28.525    28.5?5
 19   26.285    26.295      16.735     26.145    21\85    27.195    27.635    17.645   28.085   28.095    28.535    28.555
                 (19A)                 (194                (19A)              (19A)             (19A)     (19A)     (19A)
 20   26.305    26.315      26.755     26.765    27.205   27.215    27.655    27.665   28.105   28ll5     28.555    28.565
 21   26.315    26.325      26.765     26.775    27.215   27.225    27.665    27.675   28115    28125     28.565    28.575
 22   26.325    26.335      26.775     26.785    27.225   27.235    27.675    27.685   28.125   28.135    28.575    28.585
 23   26.335    26.345      26.785     26.795    27.235   27.245    27.685    27.695   28135    28.145    28.585    28.595
 24   26.345    26355       26.795     26.805    27.245   27.255    27.695    27.705   28.145   28155     28.595    28.605
 25   26.355    26.365      26.8OS     26.815    27.255   27.265    27.705    27.715   28155    28165     28.605    28.615
 26   26.365    26.375      26.815     26.825    27.265   27.275    27.715    77.725   28165    28175     28.615    28.625
 27   26.375    26.385      26.815     26.835    27.275   27.285    27 725    27.735   28.175   28.185    28.625    28.635
 28   26.385    26.395      26.835     26.W      27.285   27.295    27.735    27.745   28.185   28.195    28.635    28.645
 29   26.395    26.405      26.845     26.855    27.295   27.305    27.745    27.755   28195    28.205    28.645    28.655
 30   26.405    26415       26.855     26.865    27.305   27.315     27.755   27.765   28.205   28.215    28.655    28.665
 31   26.415    26.425      26.865     26.875    27.315   27.325     27.765   27.775   28.215   28255     28.665    28.675
 32   26.425    26.435      26.875     26.885    27.325   27.335     27.775   17.785   28 225   28.235    28.675    28.685
 33   26.435    26.445      26.885     26.895    27.335   27.345     27.785   27.795   28.235   28.245    28.685    28.695
 34   26.445    26.455      26.895     26.905    27.345   27.355     27.795   27.805   28.245   28.255    28.695    28.705
 35   26.455    26.465      26.905     26.915    27.355   27.365     27.805   27.815   28.255    28265    28.705    28.715
 36   26.465    26.475      26.915     26.925    27365    27.375     27.815   27.825   28.265    28.275   28.715     28.725
 37   26.475    26.485      26925      26.935    27.375   27.385     27.825   27.835   28 275    28.285   28.725     28.735
 38   26.485    26.495      26.935     26.945    27.385   27.395     27.835   27.845   28.285   28.295    28.135     28.745
 39   26.495    26.505      26.945     26.955    27.395   27.405     27.845   27.855   28 295   28 305    28.745     28.755
 40    26.505    26.515      26.955     26.965   27.405    27.415    27.855   27.865    28305    28.315    28.755   28.765
( LI                                       CHANNEL INFORMATION
 1     25.615   25.625   26.065   26.075    26.515   26.525   26.965   26.975       27.415   27.425   27.865   27.875
 2     25.625   25.635   26.075   26.085    26.5li   26.535   26.975   26.985       27.425   27.435   27.875   27.885
 3     25.635   25.645   26.085   26.095    26.535   26.545   26.985   26.995       27.435   27.445   27.885   27.895
                 (3A)              (3A)               (3A)              (3A)                  (3A)              (3A)
 4     25.655   25.665   26.105   26.115    26.555   26.565   27.005   27.015       27.455   27.465   27.905   27.915
 5     25.665   25.675   26.115   26.125    26.565   26.575   27.015   27.025       27.465   27.475   27.915   27.925
 6     25.675   25.685   26.125   26.135    26.575   26.585   27.025   27.035       27.475   27.485   27.925   27.935
 7     25.685   25.695   26.135   26.145    26.585   26.595   27.035   27.045       27.485   27.49s   27.935   27.945
 10    25.725   25.735   26.175   26.185    26.625   26.635   27.075   27.085       27.525   27.535   27.975   27.985
 11    25.735   25.745   26.185   26.195    26.635   26.645   27.085   27.095       27.535   27.545   27.985   27.995
 12    25.755   25.765   26.205   26.215    26.655   26.665   27.105   27.115       27.555   27.565   28.005   28.015
 13    25.765   25.775   26.215   26.225    26.665   26.675   27.115   27125        27.565   27.575   28.015   28.025
 14    25.775   25.785   26.225   26.235    26.675   26.685   27.125   27135        27.575   27.585   28.025   28.035
 15    25.785   25.795   26.235   26.245    26.685   26.695   27.135   27.145       27.585   27.595   28.035   28.045
 16    25.805   25.815   26.255   26.265    26.705   26.715   27.155   27.165       27.605   27.615   28.055   28.065
 17    25.815   25.825   26.265   26.275    26.715   26.725   27.165   27.175       27.615   27.625   28.065   28.075
 20    25.855   25.865   26.305   26.315    26.755   26.765   27.205   27.215       27.655   27.665   28.105   28.115
 21    25.865   25.875   26.315   26.325    26.765   26.775   27.215   27.225       27.665   27.675   28.115   28.125
 22    25875    25.885   26.325   26.335    26 775   26.785   27.225   27 235       27675    27685    28.125   28 135
 23    25 885   25.895   26.335   26.345    26.785   26.795   27.235   27 245       27 685   27 695   28 135   28 145
 24    25895    25.905   26.345   26.355    26.795   26 805   27.245   27 255       27 695   27 705   28 145   28.155
 25    25.905   25.915   26.355   26 365    26805    26 815   27.255   27 265   1   27 705   27.715   28.155   28 165
 26    25.915   25.925   26.365   26.375    26.815   26.825   27.265   27.275       27.715   27.725   28.165   28.175
 27    25.925   25.935   26.375   26.385    26.825   26.835   27.275   27.285       27.725   27.735   28.175   28.185
 28    25.935   25.945   26.385   26.395    26.835   26.845   27.285   27.295       27.735   27.745   28.185   28.195
 29    25.945   25.955   26.395   26.405    26.845   26.855   27.295   27.305       27.745   27.755   28.195   28.205
 30    25.955   25.965   26.405   26.415    26.855   26.065   27.305   27.315       27.755   27.765   28.205   28.215
 31    25.965   25.975   26.415   26.425    26.865   26.875   27.315   27.325       27.765   27.775   28.215   28.225
 32    25.975   25.985   26.425   26.435    26.875   26.885   27.325   27.335       27.775   27.785   28.225   28.235
 33    25.985   25.995   26.435   26.445    26.885   26.895   27.335   27.345       27.785   27.795   28.235   28.245
 34    25.995   26.005   26.445   26.455    26.895   26.905   27.345   27.355       27.795   27.805   28.245   28.255
 35    26.005   26.015   26.455   26.465    26.905   26.915   27.355   27.365       27.805   27.815   28.255   28.265
 36    36.015   26.025   26.465   26.475    26.915   26.925   27.365   27.375       27.815   27.825   28.265   28.275
 37    26.025   26.035   26.475   26.485    26.925   26.935   27.375   27.385       27.825   27.835   28.275   28.285
 38    26.035   26.045   26.485   26.495    26.935   26.945   27.385   27.395       27.835   27.845   28.285   28.295
 39    26.045   26.055   26.495   26.505    26.945   26.955   27.395   27.405       27.845   27.855   28.295   28.305
MEMO
Printed in Taiwan
AT2100011K