background image

General

Channels:

40

CB Frequency Range:

26.965 to 27.405 MHz

Weather Frequency Range:

162.400MHz (WX CH1)
162.425MHz (WX CH2)
162.450MHz (WX CH3)
162.475MHz (WX CH4)
162.500MHz (WX CH5)
162.525MHz (WX CH6)
162.550MHz (WX CH7)

Frequency Control:

Phase Locked Loop (PLL) synthesizer

Frequency Tolerance:

±0.002%

Operating Temperature:

-30˚C to +60˚C (CB)
-10˚C to +60˚C (WX)
-10˚C to +60˚C (DSC on)

Microphone:

Plug-in type; 600 ohms dynamic

Input Voltage:

13.8 VDC nominal (positive or negative ground)

Current Drain:

TX: AM full modulation, 2.2 A (max.)
RX: Squelched, 0.4 A; with maximum audio output,
1.2A (nominal)

Size:

7-9/32” W x 8-57/64” D x 2-13/64” H

Weight:

4 lbs. 3 oz. with microphone

Antenna Connector:

UHF, SQ-239

Meter:

Illuminated; indicates relative power output and received
signal strength SWR.

Transmitter

Power Output:

4 watts

Modulation:

High- and low-level, Class B amplitude modulation

Frequency Response:

300 to 3000 Hz

Output Impedance:

50 ohm, unbalanced

Receiver

Sensitivity:

Less than 1 µV 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 typical

IF Frequencies: Double Conversion:

1st: 10,695 MHz; 2nd: 455 kHz

Automatic Gain Control (AGC):

Less than 10 dB change in audio output for inputs from
10 to 50,000 µV

RF Gain Control:

Adjustable for optimum signal reception

Delta Tune Range:

±1.5 kHz, continuously adjustable

Noise Blanker:

RF type

Squelch:

Adjustable; threshold less than 1 µV

Audio Output Power:

4 watts

Frequency Response:

300 to 3000 Hz

Distortion:

Less than 7% at 3 watts, 1000 Hz

Internal Speaker:

16 ohms, round

External Speaker:

8 ohms, disables internal speaker when connected

(not supplied)

PA System

Power Output:

4 watts into external speaker

External Speaker for PA
speaker:

8 ohms when CB/PA switch is in PA. The PA

(not supplied)

also monitors the receiver; separate jack provided.

Specifications shown are typical and subject to change without notification.

12

Specifications

UC343FH  10/23/03  2:32 PM  Page 12

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: ......

Reviews: