MC 6800 DSC - President Electronics

is received, or “CLR” is pressed (it is not recommended that the Distress Alert is cancelled
manually by pressing “CLR” unless you are requested to do so by the rescue authorities).
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.
6. RECEIVING A CALL
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.
1. Routine Call
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. After acknowledgement, the “*” will disappear.
2. Urgency Call and Safety Call
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.
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