Voice Transmission

Operating Your Radio

Voice Transmission

 

Transmit mode gives you the ability to communicate with safety services, other vessels, and shore stations. When you use this capability, be sure to follow the procedures and to observe the courtesies that govern its use so everyone benefits. (The tables on pages 66 through 73 will help you select the proper channels.)

Before pressing the Talk button to transmit a message, you should select the

Voice Transmission

Operating Your Radio

Transmit Power Output

Your radio can Transmit selectively at one (1) or 25 watts of power. Cobra® suggests you maintain the low power setting for short-range communications and to avoid overpowering nearby stations with your signal. Use the high power setting for long-range communications or when you do not receive a response to a signal sent at one (1) watt.

appropriate channel and transmit power output.

Channels

You can transmit voice messages on most VHF Channels. Refer to the VHF marine channel assignments on pages 14 through 23 to select a channel according to the type of message you are going to send.

High/Low Power Button

High/Low Power

To Toggle Between The High And Low Power Modes:

1.Press the High/Low Power button.

The LCD will show which mode is in effect.

Some channels are restricted to use at a maximum of one (1) watt. Your radio will automatically set the power to Low Power mode when you select those channels.

Up/Down Buttons

To Change The Channel You Can Choose

From One (1) Of The Following:

a. Press the Up/Down buttons. This will take you to the next higher or lower VHF channel. (When on Channel 88A, the next higher channel is Channel 1 and vice versa.) For rapid advance, press and hold the Up or

While using the U.S.A. channel map, if, in an emergency, you need to increase the output power on Channel 13 and Channel 67 for your signal to be heard, you can override the Low Power mode by pressing and holding the High/ Low Power button.

Channel 16/9 Buttons

Down buttons. (The confirmation tone will sound only for each button press, not during rapid advance.)

b. Press the Channel 16/9 button. This will take you to Channel 16 with one (1) press and to Channel 9 with a second press. Additional presses will toggle between Channel 16 and Channel 9. Press and hold the Channel 16/9 button to return to Standby mode.

Low Power Setting

2 Inches From Mouth

Talk Button

Transmit Icon

Transmit A Message

To Transmit A Message:

1.Check to see that your unit is set to a proper channel for the type of message you plan to send.

2.Toggle to the low power setting.

3.With the microphone/speaker about two (2) inches [five (5) cm] from your mouth, press and hold the Talk button and speak into the microphone/speaker. Transmit will be indicated on the LCD.

4.Release the Talk button when you are finished speaking. Your unit can only operate in either the Transmit or the Receive mode at any given time. You will not hear the response to your message unless the Talk button is released.

NOTE

If the Talk button is held down for five (5) minutes, the radio will automatically cease transmitting to prevent unwanted signal generation. As soon as the Talk button is released, it can be pressed again to resume transmission.

32 English

Nothing Comes Close to a Cobra® 33

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Cobra Electronics MR F75-D owner manual Voice Transmission, Transmit Power Output, Channels, Transmit a Message

MR F75-D specifications

Cobra Electronics has long been a name associated with reliable communication solutions, and the MR F75-D is no exception. This high-performance marine VHF radio is designed specifically for boaters, offering a blend of essential features, advanced technologies, and user-friendly characteristics that make it an excellent choice for both recreational and commercial marine applications.

One of the standout features of the MR F75-D is its Class D DSC (Digital Selective Calling) capability, which allows users to send distress calls and communicate with other vessels or coast guard stations at the push of a button. This increases safety on the water, as it provides an automated means to alert others in case of emergencies.

The radio operates seamlessly on the vital marine channels, ensuring that users have access to all the necessary frequencies for navigation and communication. With an impressive 25 watts of transmitting power, the MR F75-D provides extended range, ensuring that calls can be made even in challenging conditions.

The Cobra MR F75-D boasts an ergonomic design featuring a solid weather-resistant construction to withstand the harsh marine environment. Its large, easy-to-read backlit LCD display enhances readability in bright sunlight or low-light conditions, making it accessible under various circumstances.

Moreover, the radio includes a built-in NOAA weather radio with alerts. This feature keeps users informed about local weather conditions and forecasts, enabling them to make better decisions while out at sea. The option to scan channels and save favorites makes it easy to navigate through crowded frequencies to find the right communication line.

The MR F75-D is equipped with Dual Watch and Tri-Watch functions, allowing users to monitor two or three channels simultaneously. This increases the chances of receiving essential messages while on the water, providing greater peace of mind.

With a compact design, the MR F75-D can fit easily on most boats, while the intuitive controls enhance usability. The radio also supports external GPS connection, offering even better situational awareness.

In conclusion, the Cobra Electronics MR F75-D is a versatile, durable, and feature-rich marine VHF radio. With its DSC capabilities, NOAA weather notifications, and robust build, it proves to be an invaluable tool for safe and efficient marine communication, making it a top choice for any boating enthusiast.