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General| Brand | SEA |
|---|---|
| Model | 7157 |
| Category | Transceiver |
| Language | English |
Detailed specifications including dimensions, weight, and electrical characteristics of the SEA 7157.
Provides essential information on propagation, installation, and radio protection for the SEA 7157.
Explains various characters and indicators displayed on the SEA 7157's LCD screen.
Describes the functions of each button and control on the front panel of the SEA 7157.
Guides users on turning the radio on/off, adjusting volume, and setting channels.
Step-by-step instructions for powering the SEA 7157 radiotelephone on and off.
How to cycle through US, International, and Weather channel lists on the SEA 7157.
Instructions on how to choose a specific channel using number keys or navigation keys.
Explains how to adjust the squelch setting to minimize unwanted noise.
Details the function of the dedicated Channel 16 key for emergency and calling.
Guidance on using the push-to-talk button, speaking clearly, and power level considerations.
How to access and navigate the radio's advanced function menus.
Instructions for adjusting the transmitter output power between 1 and 25 watts.
How to adjust the display contrast for better readability under various conditions.
Adjusting the brightness of the display and keypad backlighting.
Setting receiver sensitivity for local (LOC) or distant (DX) signals.
How to designate a new priority channel for dual watch or scanning.
Marking channels to be included in memory scan operations.
How to monitor two channels simultaneously, the selected and the priority channel.
Scanning all channels in the current list to find active channels.
Scanning only channels that have been tagged for memory scan.
Modifying how the radio reacts to active channels during scanning.
How to view channels that have been assigned as memory channels.
Setting the duration the radio stays on an active channel during scans.
Resetting memory scan lists and the priority channel to factory defaults.
Enabling or disabling the audible key beep feedback.
Assigning alphanumeric names to channels for easier identification.
How to view the radio's software version, release date, and serial number.
Step-by-step guide to transmitting a DSC distress call, including condition selection.
Navigating the primary DSC menu for various functions like reviewing calls and programming.
How to initiate standard DSC calls to other stations.
Making DSC calls on a channel other than the default DSC channel.
Transmitting a distress call on behalf of another vessel in distress.
Broadcasting DSC calls to all ships in range for warnings or information.
Using DSC to set up telephone calls via a coast station.
How the radio handles and displays incoming DSC calls.
Accessing and viewing the history of transmitted and received DSC calls.
Overview of predefined DSC message formats and their structure.
Creating and transmitting a Class A distress call.
Sending an All Ships DSC call using the Class A format.
Transmitting DSC calls to specific geographic areas.
Sending DSC calls to individual stations or groups.
Setting up telephone calls via Class A format.
Accessing DSC settings from the program menu.
How to program the current date and time into the radio.
Entering the vessel's unique Maritime Mobile System Identification (MMSI).
Configuring the radio to accept NMEA 0183 navigational input.
Setting audible alarm times and the default DSC channel.
Accessing menus for testing alarms, dot patterns, and radio functions.
Adding and managing a directory of frequently called DSC stations.
Adding and managing a directory of frequently called telephone numbers.
Manually entering Latitude and Longitude data for position reporting.
A comprehensive list of US VHF marine channels and their designations.
A list of international VHF marine channels and their designations.
Channels designated for receiving weather broadcasts.
Details on power connector, RF connectors, printer, and NMEA 0183 interface.
Information about connecting a computer for radio updates via the P4 connector.
Chassis ground connection for safety and interference reduction.
Definitions of acronyms and technical terms used in the manual.
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