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6

CONNECTING THE POWER CORDS 

We recommend 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. 

Or, the power cord may be connected to an available terminal on the 
fuse block, or, to a point in the wiring harness. However, caution must 
be taken to prevent a short circuit. If in doubt, contact your vehicle dealer
for information.

GROUND INFORMATION

Most 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 System

If you have a negative ground system,
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.

Positive Ground System

If you have a positive ground system,
connect the 

black

DC power cord from the

transceiver to the negative (-) battery
terminal or other convenient point. Then,
connect the 

red

power cord to the vehicle 

chassis or the positive (+) battery terminal.

This transceiver may be installed and used in any 12-volt 
DC negative or positive ground system vehicle.

PC68XL.qxd  2/25/99  10:07 AM  Page 6

Summary of Contents for PC68XL

Page 1: ...COVER PC68XL qxd 2 25 99 10 06 AM Page 1...

Page 2: ...oubleshooting 10 Servicing Your Transceiver 10 Specifications 11 Two Year Warranty 12 Radio Code Definitions 13 Carefully unpack your PC68XL and check the contents against this list n PC68XL CB 2 way...

Page 3: ...ls except Channel 9 may be used for normal communication Channel 9 is reserved by the FCC for emergency communications involving the immediate safety of individuals or protection of property Channel 9...

Page 4: ...CH 9 Indicator Red Channel 9 switch is on 10 Dynamic Squelch Control DSC Automatically sets Squelch to optimal level for stronger signals 11 CH9 OFF Turns Channel 9 on or off 12 BRT DIM Adjusts the b...

Page 5: ...y be used for normal communication Channel 9 is reserved by the FCC for emergency communications involving the immediate safety of individuals or protection of property Channel 9 may also be used to r...

Page 6: ...ormance 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 qual...

Page 7: ...e 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 Syst...

Page 8: ...4 Turn SQUELCH fully clockwise so only strong signals can get through 4b Turn SQUELCH fullY counter clockwise until you hear a hiss Everything gets through noise weak signals and strong signals 4c Tu...

Page 9: ...microphone PTT switch to read transmitting power S Meter Measures incoming signal strength The meter swings to indicate signal strength i e S 3 S 5 S 7 F Fu un nc ct ti io on n M Me et te er r Be sur...

Page 10: ...ser 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 Carefully separate the t...

Page 11: ...X 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 5 00 p m CST Monday through Friday Technical informatio...

Page 12: ...rcentage Peak 100 Spurious Rejection 70 dB Output Impedance 50 ohm unbalanced RECEIVER Sensitivity at 10 dB S N N 0 5 V Sensitivity at 500 mW Audio Output 0 5 V Squelch Threshold 0 5 V Antenna Impedan...

Page 13: ...r 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 E...

Page 14: ...ify your station 10 29 Time is up for contact 10 30 Does not conform to FCC rules 10 32 I will give you a radio check 10 33 EMERGENCY TRAFFIC 10 34 Trouble at this station Code Meaning 10 35 Confident...

Page 15: ...back cover PC68XL qxd 2 25 99 10 07 AM Page 14...

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