User manual PRESIDENT MC 6800 DSC

[. . . ] It includes a VHF marine radio and a DSC controller in one set, therefore it is very convenient for use. The MC 6800 DSC support the latest GMDSS requirements for non-SOLAS vessels from the International Maritime Organization (IMO). It will enable you to make digitally selected calls, which are quicker and simpler to make then conventional voice calls using channel 16. Should distress situation occur, with the MC 6800 DSC you can quickly raise an alert, indicating your identity, your position and automatically establish distress communication on the emergency voice channel. [. . . ] While the Distress Alert remains active, an intermittent alarm will continue to sound about one time per 15s. When an acknowledgement is received from the Rescue Co-ordination Center, this will cancel the Distress Alert transmission from the Radio and automatically switch the Radio to the required working channel. The subsequent Rescue Co-ordination will be performed using the voice working channel. When a DSC call is received, the radio will switch to the call log screen to display the details of the call and ring or sound the alarm depending on the nature of the call. The procedures that follow describe how to handle the types of calls that can be received. When a Routine call is received, the screen will show the details of the call, which it is from and working channel as follows, and an alarm will sound. Press the "ENT" key on the fist mike keypad, an acknowledgement will be sent to caller and the radio will be automatically switched to working channel for normal voice communication. The "*"will disappear when the call has been acknowledged. When looking back at routine call logs, if there is a "*" symbol on the screen, you can press directly "ENT" key to send an acknowledgement. The procedures for urgency and Safety calls are very similar, an urgency call will sound the distress alarm and switch the radio to Channel 16. A safety call will sound a normal ring and switch the radio to the specified working channel as follows. Press the "ENT" key to stop the ringing, and then listen for the voice message. When a Group call is received, the radio will sound a ringing and display the details of the call, indicating whom it is from and the working channel as follows. Press "ENT" key to stop the ringing, then listen for the voice message or speak. If a Distress Alert or a Distress Relay is received from another vessel, an alarm will sound and the Radio will switch to channel 16, The screen will show the details of the Distress Alert or Distress Relay, the MMSI of the vessel, the nature of the distress, it's position and time, Mute the alarm by pressing "ENT" Key and maintain a listening watch on channel 16 for the distress message. Press "CLR" key to clear the display. In order to access additional functions, Press "MENU" key of fist mike. The call log can be used to look back through the previous received call logs, the most recent call first. press "MENU" soft key to select the "LOG VIEW" screen . If there is no any message have been received, the screen will be as follows. The or soft key are used to move back and forward through the log . The bottom left of the screen shows the date time of receiving the call in dd/hh/mm as follows: Press "CLR" key to exit from the call log screen. [. . . ] The MC 6800 DSC requires a 12v DC supply to operate, This lead should be connected to the vessel's power supply, keeping the cable runs as short as possible. Although the radio draws very little current when receiving, a heavier current is drawn when transmitting which may result in a voltage drop if very long cable runs are used of inadequate core diameter. If the supplied power lead is not long enough, an extension of up to 3m(10 ft)can be made using at least 2. The chassis of the Radio is not connected to either supply rail. [. . . ]