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RF Meter

: Measures RF Output Power for transmitter. To use, position 

the meter switch at 

S/RF

. Press microphone 

PTT

switch to read 

transmitting power.

S-Meter

: Measures incoming signal strength. To use, position the meter

switch at 

S/RF

. The meter swings to indicate signal strength. 

i.e. 

S 3, S 5, S 7 . . .

9

Preventive Maintenance

Maintenance

Use only the fuse specified for your 

PC78 Elite

.

Failure to do so may void your warranty.

Every six months:

1. Check the Standing Wave Ratio (

SWR

).

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 hard ware are tight.

The 

PC78 Elite

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. 
Carefully separate the two pieces.

2. Remove the fuse and inspect. 

If blown, replace with the same
type fuse.

UC343FH  10/23/03  2:32 PM  Page 9

Summary of Contents for Bearcat PC78 Elite

Page 1: ......

Page 2: ...tenance 9 Maintenance 9 Troubleshooting 10 Servicing Your Transceiver 10 Radio Code Definitions 11 Specifications 12 Two Year Extended Warranty 13 Contents Carefully unpack your PC78 Elite and check t...

Page 3: ...equipment In doing so the FCC also decided to permit CB station operation without station identification Elimination of individual station licenses does not reduce the operating privileges or responsi...

Page 4: ...hannel 9 Channel Knob Selects channel 10 Channel Display Displays current channel selection 11 RX TX Indicator Red transmitting green receiving 12 ANT Indicates a high SWR condition in antenna system...

Page 5: ...eaker is plugged in the internal speaker is off To prevent acoustic feedback separate the microphone from the speaker when operating the PA at high output levels 17 CB WX PA Selects PA Public Address...

Page 6: ...alling 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 y...

Page 7: ...m 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 deter...

Page 8: ...can get through 4b Turn SQUELCH fully counter clockwise until you hear a hiss Everything gets through noise weaksignals and strong signals 4c Turn SQUELCH back clockwise until the hiss stops Only clea...

Page 9: ...er Channel knob to the channel with best reception Left at this setting you will hear only weather broadcasts and Weather Alert Signals To use your CB radio normally while monitoring for weather alert...

Page 10: ...t MIC GAIN 3 When the channel is clear press the microphone PTT switch and speak To measure SWR 1 Position meter switch to CAL 2 Press and hold microphone PTT switch Transmit 3 Calibrate meter with SW...

Page 11: ...Every six months 1 Check the Standing Wave Ratio SWR 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 h...

Page 12: ...IC GAIN and adjust to MAX 10 Troubleshooting Servicing Your Transceiver If you do not get satisfactory results after performing the above checks call the Uniden Customer Service Center at 1 800 297 10...

Page 13: ...0 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 Confidential information 10...

Page 14: ...e 300 to 3000 Hz Output Impedance 50 ohm unbalanced Receiver Sensitivity Less than 1 V for 10 dB S N N Selectivity 6 dB 7 kHz 60 dB 10 kHz Image Rejection 80 dB typical Adjacent Ch Rejection 60 dB typ...

Page 15: ...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 NATUR...

Page 16: ......

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