Operating Your Radio

Channel Up/Down Buttons

Squelch Control

Setup Mode Programming

Squelch Control

Squelch Control filters weak signals and radio frequency (RF) noise so that you will clearly hear the signals you want. The Squelch Control on this radio is set through the following keypad operation.

To Set Squelch Control:

1. With the power On, press and hold Call/Enter/Setup button to access the Setup menu.

2.Squelch control will be the first menu item to appear. Press the Channel Up and Channel Down buttons to set level. The signal level bar graph shows squelch level while you are in Setup mode on the squelch adjust function.

3.To tune your squelch, press the Channel Down button until you hear a hissing sound, then press and release the Channel Up button until the hissing stops. This will establish a “Baseline” squelch.

4.By pressing the Channel Up button further, you will filter weak and medium strength signals. By pressing Channel Down button, you will receive weaker signals.

5.Press the Call/Enter/Setup button to save this entry and move to the next Setup mode programming.

NOTE

If the Squelch is set so that you can hear a continuous hissing sound, the Memory Scan and Tri-Watchfunctions will be blocked.

Operating Your Radio

Active Channel Map Icon

Channel Up/Down Buttons

Call Tone Alert

Setup Mode Programming

International/Canada/USA Channel Maps

Three (3) sets of VHF Channel Maps have been established for marine use: International, Canada and USA. Most of the channels are the same for all three (3) maps, but there are definite differences (see table in the Apendix on page 50).

Your radio has all three (3) maps built into it and will operate correctly in whichever area you choose.

To Set Channel Map Operating Area:

1.The Channel Map mode is the second mode on the Marine (VHF) Setup programming.

2.U, I and C will display, with the current setting (the I icon is the default) flashing.

3.Press Channel Up/Down button to select the I, C or U icon.

4.Press Call/Enter/Setup button to save this entry and move to the next Setup mode programming.

NOTE

One or two of the channel maps might have been disabled for sales of this radio in some countries.

Call Tone Alert

If Call Tone Alert is set to On, the radio will alert you to a call from a compatible Cobra radio with a Call Alert.

To Set Call Tone On or Off:

1.Display will show Call Tone icon and ON or OFF flashing.

2.Press Channel UP/Down button to select ON or OFF.

3.Press the Call/Enter/Setup button to save this entry and move to the next Setup mode programming. The Call Tone icon will show in the Standby mode when set to ON.

Call Tone Select

This setting will also allow you to transmit a unique Call Tone alert to identify your radio when you transmit messages. You can select from one of 10 different Call Tone signals.

18 English

Nothing Comes Close to a Cobra® 19

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Cobra Electronics MRHH475FLTBTEU To Set Squelch Control, International/Canada/USA Channel Maps, Call Tone Alert

MRHH475FLTBTEU specifications

The Cobra Electronics MRHH475FLTBTEU is a remarkable handheld VHF marine radio designed for boaters who prioritize safety and communication while on the water. With its advanced features and robust design, this radio is an essential tool for navigating the challenges of maritime environments.

One of the standout features of the MRHH475FLTBTEU is its dual and tri-watch capabilities. This allows users to monitor emergency channels while simultaneously keeping an eye on other important frequencies. The device seamlessly switches between channels, ensuring boaters never miss critical communications. The inclusion of the NOAA Weather Radio provides real-time updates on weather conditions, helping sailors stay informed about any potential storms or hazardous conditions.

The MRHH475FLTBTEU boasts an impressive 6-watt transmit power, which enhances its range and clarity. This is particularly important for emergencies, where clear communication can be the difference between safety and distress. The unit is also equipped with a built-in noise-canceling microphone that significantly reduces background noise, allowing for clearer conversations even in windy or choppy conditions.

In terms of design, the Cobra MRHH475FLTBTEU is rugged and waterproof, meeting JIS7 standards. This means it can withstand immersion in water, making it reliable for any marine environment. The backlit LCD display is easy to read in low-light conditions, displaying relevant information such as signal strength and battery life.

Another notable characteristic is the radio's rechargeable lithium-ion battery, which provides extended usage without the need for constant replacements. With a battery-saving feature, users can prolong the life of each charge, ensuring that the radio remains operational during long outings.

The Cobra MRHH475FLTBTEU is more than just a communication device; it is equipped with features like a GPS interface that provides location information for easier navigation. This integration enhances safety by allowing users to share their coordinates with other vessels in case of emergencies.

Overall, the Cobra MRHH475FLTBTEU is a powerful and versatile marine radio that combines essential safety features with reliable communication technologies. Its durability, advanced functionalities, and user-friendly design make it an invaluable asset for any boater, ensuring peace of mind out on the water. Whether for leisure or emergencies, this radio stands out as a critical piece of equipment for maritime adventures.