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Essential safety guidelines for operating and installing the equipment, including warnings and cautions.
Information on RF radiation levels and safe distances for operation.
Overview of the main capabilities and specifications of the FM-4721.
Procedure for making an emergency call using Channel 16.
Guidelines for making initial contact with other vessels.
Identifies and describes the operational controls on the transceiver unit and handset.
Steps for receiving signals, adjusting volume, and squelch.
Procedure for transmitting voice signals using the microphone.
How to receive NOAA weather broadcasts and set up weather alerts.
How to configure and use channel scanning features.
Steps to add or delete channels from the scan memory.
How to initiate and stop memory scanning.
Introduction to Digital Selective Calling (DSC) and its applications.
Explanation of MMSI numbers and their use in DSC.
Procedure for transmitting and receiving DSC distress alerts.
Detailed steps for sending distress alerts with and without specifying distress nature.
How to manually enter position data for distress alerts.
How to pause, cancel, and receive DSC distress alerts.
How to initiate and receive individual DSC calls.
Registering contacts and setting call reply preferences.
Setting call acknowledge methods and configuring ringers.
Procedures for making individual calls from the directory or manually.
How to receive individual calls, with automatic or manual reply.
How to respond to incoming individual calls manually.
Setting up automatic/manual replies and position request ringers.
How to request vessel positions from the directory or manually.
How to respond to incoming position requests.
How to enable/disable the position report ringer.
Procedures for sending your position report to vessels.
How to handle incoming position reports.
How to initiate DSC test calls using the directory.
How to perform DSC test calls by manually entering MMSI.
Precautions for maintaining the transceiver to prevent damage.
A guide to diagnosing and resolving common equipment problems.
How to connect power supply, handset, and antenna.
Essential safety guidelines for operating and installing the equipment, including warnings and cautions.
Information on RF radiation levels and safe distances for operation.
Overview of the main capabilities and specifications of the FM-4721.
Procedure for making an emergency call using Channel 16.
Guidelines for making initial contact with other vessels.
Identifies and describes the operational controls on the transceiver unit and handset.
Steps for receiving signals, adjusting volume, and squelch.
Procedure for transmitting voice signals using the microphone.
How to receive NOAA weather broadcasts and set up weather alerts.
How to configure and use channel scanning features.
Steps to add or delete channels from the scan memory.
How to initiate and stop memory scanning.
Introduction to Digital Selective Calling (DSC) and its applications.
Explanation of MMSI numbers and their use in DSC.
Procedure for transmitting and receiving DSC distress alerts.
Detailed steps for sending distress alerts with and without specifying distress nature.
How to manually enter position data for distress alerts.
How to pause, cancel, and receive DSC distress alerts.
How to initiate and receive individual DSC calls.
Registering contacts and setting call reply preferences.
Setting call acknowledge methods and configuring ringers.
Procedures for making individual calls from the directory or manually.
How to receive individual calls, with automatic or manual reply.
How to respond to incoming individual calls manually.
Setting up automatic/manual replies and position request ringers.
How to request vessel positions from the directory or manually.
How to respond to incoming position requests.
How to enable/disable the position report ringer.
Procedures for sending your position report to vessels.
How to handle incoming position reports.
How to initiate DSC test calls using the directory.
How to perform DSC test calls by manually entering MMSI.
Precautions for maintaining the transceiver to prevent damage.
A guide to diagnosing and resolving common equipment problems.
How to connect power supply, handset, and antenna.
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