Uniden PC78 manual Preventive Maintenance

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UC343FH 10/23/03 2:32 PM Page 9

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 . . .

Preventive Maintenance

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.

Maintenance

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.

Use only the fuse specified for your PC78 Elite.

Failure to do so may void your warranty.

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Contents Page Unpacking ContentsEmergency Operation DescriptionElimination of Licensing Front View PC78 Elite Backlighted Panel Controls and FunctionsRear View Mobile Station Installation InstallationConnecting the Power Cords To Receive Weather Information Multi-Function Meter To TransmitMaintenance Preventive MaintenanceServicing Your Transceiver TroubleshootingCode Meaning Radio Code DefinitionsGeneral SpecificationsUniden America Corporation Two-Year Extended Warranty

PC78 specifications

The Uniden PC78 is a robust and versatile CB radio that has earned a reputation among enthusiasts for its reliability and performance. As a part of Uniden’s long-standing tradition of quality communication devices, the PC78 is designed for both casual users and serious CB radio operators.

One of the standout features of the Uniden PC78 is its sleek design coupled with a user-friendly control interface. The radio comes with an easy-to-read LCD display that illuminates for visibility in low-light conditions. This feature is essential for nighttime operations, allowing users to easily see channel numbers and other vital information without straining their eyes.

The PC78 operates on the 40-channel Citizens Band frequency, providing ample options for communication. It also includes an automatic noise limiter, which helps to reduce background noise and ensure clearer audio quality during transmissions. This technology is especially useful in areas with significant electronic interference, helping users maintain a clear connection.

Another key characteristic of the Uniden PC78 is its power output. The radio operates at 4 watts of maximum power, which is standard for most CB radios, ensuring that users can communicate effectively over reasonable distances. Additionally, the radio is equipped with a built-in SWR (Standing Wave Ratio) meter, which allows users to tune their antennas for optimal performance, ensuring maximum signal strength and clarity.

The PC78 also supports an array of advanced features, including automatic squelch control, which automatically mutes the speaker when no signals are present, preventing unwanted noise. The dynamic squelch control further enhances this feature, adapting to varying signal levels.

Furthermore, the Uniden PC78 includes a dual watch function that allows users to monitor two channels simultaneously, facilitating communication flexibility. Users can easily switch between their primary channel and a secondary one, making it easier to stay updated on different conversations.

In terms of durability, the Uniden PC78 is built to withstand the rigors of daily use, making it suitable for both in-vehicle and base station setups. Its sturdy construction ensures long-lasting performance, making it a reliable choice for both everyday use and rugged environments.

In conclusion, the Uniden PC78 is a feature-rich CB radio that combines advanced technology with user-friendly operation. Its clarity, durability, and range of functionalities make it an excellent choice for anyone looking to enhance their communication capabilities in the CB radio realm. Whether for work or leisure, the PC78 stands out as a dependable option in the competitive market of CB radios.