Uniden UM355 VHF Owner's Manual

Pages 40

Year 2014

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Uniden UM355 VHF Radio Specification

The Uniden UM355 VHF Radio is a robust maritime communication device designed to ensure reliable communication on the water. It operates across all USA, International, and Canadian marine channels, providing extensive coverage and versatility for various marine environments. The radio features a compact, rugged design suitable for the harsh conditions of marine use, with an intuitive interface for ease of operation.

The UM355 is equipped with an emergency channel 16/9 key that allows instant access to priority channels, ensuring quick communication during emergencies. Its weather alert feature keeps users informed of changing weather conditions by providing updates from NOAA Weather Channels, enhancing safety during marine expeditions. The radio also features Triple Watch functionality, enabling users to monitor channel 16 and two additional channels simultaneously, which is essential for maintaining awareness of critical communications.

With a transmit power of 25 watts, the UM355 ensures clear and strong communication over long distances. The device also supports 1-watt transmission power for short-range communication, optimizing battery life in non-critical situations. Its large, backlit LCD display offers excellent visibility in various lighting conditions, facilitating easy channel navigation and operation.

The radio includes advanced features such as a memory channel scan, which allows users to scan and save frequently used channels for quick access. The Squelch feature helps reduce background noise, ensuring clear reception of incoming transmissions. The Uniden UM355 is designed for easy installation with a standard mounting bracket, making it versatile for different marine vessel setups. Its durable construction and water-resistant design ensure longevity and reliability in marine environments, making it an ideal choice for boating enthusiasts and professional mariners alike.

Uniden UM355 VHF Radio F.A.Q.

How do I perform a factory reset on the Uniden UM355 VHF Radio?

To perform a factory reset on the Uniden UM355 VHF Radio, turn off the device, then press and hold the 16/9-TRI key while turning the power back on. This will reset all settings to factory defaults.

What should I do if the radio won't turn on?

First, check the power connections and ensure the battery is charged. Inspect the fuse and replace if blown. If the problem persists, consult the user manual or contact Uniden support.

How can I improve the reception on my Uniden UM355 VHF Radio?

Ensure that the antenna is properly connected and in good condition. Try repositioning the antenna and check for any obstructions that may interfere with signal reception.

How do I program channels on the Uniden UM355?

To program channels, press and hold the MEM/MEMORY key until the channel number flashes. Use the channel selector to choose your desired channel, then press MEM/MEMORY again to save.

What is the purpose of the DSC function on the Uniden UM355?

The DSC (Digital Selective Calling) function enables you to send pre-defined digital messages over VHF channels, enhancing communication and safety at sea.

How do I perform regular maintenance on the Uniden UM355 VHF Radio?

Regular maintenance includes cleaning the radio with a soft, dry cloth, checking connections and cables for wear, and ensuring the antenna is secure and corrosion-free.

What should I do if there is no sound from the speaker?

Ensure the volume is turned up and the squelch is properly adjusted. Check that the speaker is not muted or damaged. Test the external speaker connection if applicable.

How can I test the transmission on my Uniden UM355?

To test the transmission, make a test call on a working channel. Ensure that the PTT (Push-To-Talk) button is functioning and that the microphone is not obstructed.

What is the best way to install the Uniden UM355 in a boat?

Mount the radio in a dry, well-ventilated area, away from direct sunlight and moisture. Use the mounting bracket provided and ensure the antenna is properly installed for optimal performance.

How do I adjust the squelch on my Uniden UM355?

To adjust the squelch, turn the SQUELCH knob until the background noise just disappears. This sets the threshold for incoming signals, reducing unwanted noise.