Uniden UM255 Owner's Manual

Pages 28

Year 2020

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Uniden UM255 Radio Specification

The Uniden UM255 is a versatile marine radio designed to deliver reliable communication for maritime activities. It operates on a range of VHF frequencies, ensuring clear and uninterrupted communication across various channels. The radio is equipped with a robust 25-watt transmitter, providing sufficient power for long-range communication, essential for safety and coordination on the water. Featuring a large, easy-to-read LCD display, the UM255 offers intuitive navigation through its controls, allowing users to quickly access essential functions and information. Its weather alert feature ensures that users stay informed about changing weather conditions, enhancing safety and preparedness during outings.

The UM255 is constructed to withstand the harsh marine environment, boasting a rugged, waterproof design that meets stringent JIS7 standards. This resilience ensures dependable performance even under challenging conditions. The radio supports all USA, Canadian, and international marine channels, making it versatile for use in various regions. It also includes a dedicated emergency channel 16/9 key for quick access to emergency assistance, which is crucial for ensuring timely help in critical situations.

Enhanced with a Dual/Tri-Watch function, the UM255 allows users to monitor multiple channels simultaneously, maintaining awareness of important communications. The radio's backlit keypad and display facilitate operation during low-light conditions, further enhancing usability. Additionally, the unit features a comprehensive scanning function, enabling users to scan channels for activity efficiently. The Uniden UM255 also supports external speaker and microphone connections, providing flexibility for different installation setups. Overall, the UM255 exemplifies a blend of durability, functionality, and user-friendly design, making it an ideal choice for marine enthusiasts seeking reliable communication solutions.

Uniden UM255 Radio F.A.Q.

How do I perform a factory reset on the Uniden UM255 Radio?

To perform a factory reset on the Uniden UM255 Radio, turn off the radio, then hold down the 'Scan' and 'Weather' buttons simultaneously while turning the radio back on. This will reset the radio to its default factory settings.

What is the process to program channels on the Uniden UM255 Radio?

To program channels, press the 'Menu' button, use the channel selector to choose the desired channel, then press 'Enter' to save. Repeat the process for additional channels.

How can I improve reception quality on the Uniden UM255 Radio?

Improving reception can be achieved by ensuring the antenna is fully extended and positioned vertically. Additionally, moving to a higher location or away from obstructions can enhance signal quality.

What steps should I take to troubleshoot if the Uniden UM255 Radio won't turn on?

First, check the power connections and ensure the power source is functioning. If using batteries, ensure they are charged and inserted correctly. If the issue persists, inspect the fuse and replace if necessary.

How do I activate the weather alert feature on the Uniden UM255 Radio?

Press the 'Weather' button to access the weather channels. To enable alerts, press and hold the 'Weather' button until the alert icon appears on the display.

What maintenance is required to keep the Uniden UM255 Radio in good condition?

Regularly clean the radio exterior with a soft, damp cloth. Check the antenna and connections for any signs of wear or corrosion, and ensure the battery terminals are clean and free of rust.

What should I do if there is no sound coming from the speaker of the Uniden UM255 Radio?

Ensure the volume is turned up and not muted. Check the speaker connections and inspect the audio settings. If using an external speaker, verify that it is connected properly.

How can I lock the keypad on my Uniden UM255 Radio to prevent accidental changes?

Press and hold the 'Lock' button until the lock icon appears on the display. This will lock the keypad, preventing any unintentional operations.

What is the procedure to update the firmware on the Uniden UM255 Radio?

Visit the Uniden website to check for the latest firmware updates. Download the update and follow the provided instructions, usually involving connecting the radio to a computer via USB.

How do I adjust the squelch on the Uniden UM255 Radio?

Turn the squelch knob clockwise until the background noise disappears. Adjust further if necessary to eliminate any excess noise while ensuring you can still receive weak signals.