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Popular Uniden PC78XL Manual Pages
English Owners Manual - Page 2
...-Function Meter 8 Preventive Maintenance 9 Maintenance 9 Servicing Your Transceiver 10 Troubleshooting 10 Radio Code Definitions 11 Specifications 12 Two-Year Extended Warranty 13
Unpacking
Carefully unpack your PC78XL and check the contents against this list: s PC78XL CB 2-way mobile radio s Microphone s Mounting Bracket Kit s DC Power Cord s Reference Guide s Part 95 Subpart D (FCC Rules...
English Owners Manual - Page 3
...ask that CB Radio Service operators are strictly prohibited.
All channels, except Channel 9 may also be used to render assistance to permit CB station operation without notice. Channel 9 may be used for normal communication.
Features, Specifications, and availability of Licensing
The FCC has ruled that party to comply with the Communications Act and with parts other...
English Owners Manual - Page 4
...
2 Dynamic Squelch Control (DSC): Automatically sets Squelch to
optimal level for Standing Wave Ratio
(SWR) measurements. 8. Do not use PA function unless an external speaker is no
incoming signal. 4. Microphone Jack 2. adjusts speaker volume. 3. Check
antenna, cable and connections. 12. Channel Knob: Selects channel. 9. DELTA TUNE: Fine tunes the receiver. 7. green-receiving. 11...
English Owners Manual - Page 5
S/RF - SWR and CAL are for calibration procedures.
18. POWER: Connects DC power to remotely
monitor receiver. S/RF-SWR/CAL: Selects meter function.
REAR VIEW 19. SP.: Connects optional 8-ohm 4-watt speaker to transceiver. 20. normal; ANT.: Connects antenna cable to use as public address system. See page 8 for SWR measurements only. To prevent...
English Owners Manual - Page 6
... your requirements. Install bracket with the driver or passenger.
2. Attach the microphone bracket to install on an automobile. MOBILE STATION ANTENNA
Because the maximum power output of the transmitter is limited by installing an inferior antenna. A whip style antenna may be used for operating the radio, but does not interfere with self-tapping screws provided. 3. pc78xl.qxd 2/25...
English Owners Manual - Page 7
... a negative ground system, the negative (-) battery terminal is turned off.
and foreign made cars, and small trucks, use a positive ground system. However, caution must be installed and used in the wiring harness. pc78xl.qxd 2/25/99 10:09 AM Page 5
CONNECTING THE POWER CORDS
We recommend connecting the power lead to prevent a short circuit.
English Owners Manual - Page 8
pc78xl.qxd 2/25/99 10:09 AM Page 6
To Receive
Be sure that the power source, antenna, and microphone are properly connected before proceeding. 1. Select CHANNEL.
3. Set switch to a comfortable level.
2. Turn SQUELCH back clockwise until you hear a hiss.
Only clearer signals get through.
4b. Set SQUELCH only when the radio is not receiving a strong signal.
6 Turn...
English Owners Manual - Page 9
A SWR ratio in strong signal areas.
6. Adjust MIC GAIN.
3. Select channel. 2. Set meter switch to S/RF
To Transmit
Perform a voltage Standing Wave Ratio (SWR) measurement prior to reduce or eliminate adjacent channel interference.
7. pc78xl.qxd 2/25/99 10:09 AM Page 7
5. Adjust DELTA TUNE knob to using the transmitter. When the channel is clear...
English Owners Manual - Page 10
... to CAL. 2. Position meter switch
to the cable or antenna. Higher readings indicate a problem in the antenna system. Press microphone PTT switch to the SWR position while pressing the microphone PTT switch. S-Meter: Measures incoming signal strength. Move the meter switch to read transmitting power. pc78xl.qxd 2/25/99 10:09 AM Page 8
Multi-Function...
English Owners Manual - Page 11
... years of the fuse holder together. Maintenance
The PC78XL is required. Except for wear or breaks in the DC power cord, no user-serviceable parts inside. Carefully separate the two pieces.
2. Twist to do so may void your PC78XL. Inspect antenna coaxial cable for the fuse in shielding. 4. To replace a blown fuse:
1. Remove the fuse and inspect. Failure...
English Owners Manual - Page 12
... Uniden Customer Service Center at all times in accordance with the FCC Citizens Radio Service regulations. u Check fuse. u Check power cord connections. u Set CB/PA switch to MAX u Check VOLUME and SQUELCH. u Set RF GAIN to CB. u Be sure antenna SWR is normal. We highly recommend that this CB radio product. When ordering parts, be sure to MAX. u Check antenna. u Be sure antenna...
English Owners Manual - Page 13
...by Out of service, leaving air In service, subject to microphone 10-93 Check my frequency on
this station
Code
Meaning
10-...not conform to FCC rules I will give you a radio check EMERGENCY TRAFFIC Trouble at this channel 10-94 Please give me a
long ... by CB radio operators for us? pc78xl.qxd 2/25/99 10:09 AM Page 11
Radio Code Definitions
The following list contains common "10-Codes" used...
English Owners Manual - Page 14
... 13.8 VDC nominal (positive or negative ground) TX: AM full modulation, 2.2A (max.) RX: Squelched, 0.3A; indicates relative power output and received signal strength. separate jack provided.
with microphone UHF, SQ-239 Illuminated; pc78xl.qxd 2/25/99 10:09 AM Page 12
Specifications
General
Channels: Frequency Range: Frequency Control: Frequency Tolerance: Operating Temperature...
English Owners Manual - Page 15
... REMEDIES: This warranty gives you specific legal rights, and you may not apply to you without charge for parts, service, or any system not manufactured by Uniden, or (F) installed or programmed by anyone other cost (except shipping and handling) incurred by warrantor or its original packaging). THE LIMITED WARRANTY SET FORTH ABOVE IS THE SOLE AND...
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