5.Select a location that does not allow the radio to be subjected to direct sunlight (including that coming through windows).

6.Select a location well away from the ship's compass. Auxiliary speakers also should be located away from the compass.

ANTENNA

Since the maximum allowable power output of the transmitter is limited by the D.O.C., the antenna is a very important factor affecting transmission distance. It is for this reason that we strongly recommend that you install only a quality antenna in your new citizens band system.

Only a properly matched antenna system will allow maximum power transfer from the 50-ohm transmission line to the radiating element. Your Santronic dealer is qualified to assist you in the selection of the proper antenna to meet your applica- tion requirements.

NOTE: A non shunt-fed antenna must be used for good weather channel reception.

The general rules for antennas are: The more gain the greater the range and the higher above the water line the greater the range. Antennas should be located so as not to be in proximity to metal objects. Antenna should not have excessively long coaxial feed cables.

CONNECTING THE POWER CORDS

After you have carefully considered the various factors affecting your choice of location, position the radio (with the bracket, microphone, power plug, antenna plug, and any auxiliary plugs installed) into the selected location to assure there is no interference with surrounding items. Mark the location of the mounting bracket. Remove the bracket from the radio and use it as a template to mark the holes to be drilled for the mounting hardware. Drill the holes and mount the bracket with hardware compatible with the material of the mounting surface. Install the power cable (red is +, black is -), antenna and all other auxiliary cables and accessories. Install the radio into the mounting bracket and connect all cables and accessories to the appropriate jacks and connectors.

OPERATING PROCEDURE TO RECEIVE

1.Be sure that the power source, antenna and microphone are connected to the proper connectors before going to the next steps.

2.Turn the unit ON by rotating the Volume Control clockwise.

3.Set the Channel Selector Switch to the desired channel.

4.Set the Volume Control to a comfortable listening level.

5.Listen to the background noise from the speaker. Turn the Squelch Control slowly clockwise until the noise JUST disappears (no signal should be present). Leave the control at this setting. The SOU ELCH is now properly adjusted. The receiver will remain quiet until a signal is actually received. Do not advance the control too far, or some of the weaker signals will not be heard.

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Uniden MC-4300 manual Antenna, Operating Procedure to Receive
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MC-4300 specifications

The Uniden MC-4300 is a highly regarded marine radio that brings advanced communication capabilities to boaters and sailors. This model stands out with its durability and user-friendly features, making it an essential tool for maritime communication.

One of the main features of the Uniden MC-4300 is its robust waterproof design, conforming to the IPX7 standard. This means the device can withstand being submerged in water for a limited time, ensuring reliability in rough sea conditions. The rugged construction is complemented by a user-friendly interface that allows for easy operation, even in challenging environments.

The MC-4300 integrates Digital Selective Calling (DSC) technology, which significantly enhances safety on the water. DSC allows users to send an emergency distress signal with just the push of a button, ensuring rapid communication with nearby vessels and coastal authorities. The built-in GPS interface can also display vessel position information, which is crucial during emergencies.

This marine radio operates on both the standard VHF and weather channels, providing users with access to up-to-date weather information. The large backlit display is easy to read, even in direct sunlight or at night, making navigation and communication straightforward.

Another notable characteristic of the Uniden MC-4300 is its impressive transmission power of 25 watts, allowing for a wider range of communication. This power is essential for maritime operations where reliable contact with nearby ships or emergency services is paramount. Additionally, the unit features a 10 NOAA weather band option, providing vital alerts about severe weather conditions, thus enhancing safety on the water.

The MC-4300 also includes features such as a built-in speaker with clear audio output, ensuring that communications are loud and easily understood. It has a dual watch mode that enables monitoring of two channels simultaneously, enhancing situational awareness.

In terms of installation, the Uniden MC-4300 is designed for versatility. It can be mounted in a fixed location on a boat or utilized with an optional portable kit, allowing for convenient communication whether at a dock or navigating out at sea.

Overall, the Uniden MC-4300 combines reliable technology, durability, and intuitive design, making it an excellent choice for both recreational and professional mariners. With essential safety features and user-friendly operation, it is a valuable addition to any marine communication toolkit.
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