Sailor 6215 VHF DSC User & Installation Manual page 41

• Press and turn the selector wheel knob to change the suggested VHF
channel for following communication.
3. Press the soft key SEND to make the call.
Sessions
A DSC session (or automated procedure) is defined as a collection of DSC calls
(transmitted and/or received) that are related to the same event (e.g. a
distress event) or established call (e.g. an individual call request followed by
an acknowledgement).
A session can be either active or on hold. The active session has control over
the radio transmitter.
A session can have a purpose. For example if the purpose is to establish a
communication on a working channel.
The non-DSC VHF communication is considered as a session that can be active
(engaged) or on hold (dis-engaged). See also Engagement status on page 16.
Display for a DSC session
1. Head line showing the type of call that
initiated the DSC session, see table
below for a list of available head lines.
2. Session status line displays the current
state of the session:
• WAIT FOR ACKNOWLEDGE – You
made an individual call to a station and are awaiting a reply to
establish connection.
• OCCUPIED - The DSC transmission mechanism waits until the DSC
channel (70) is free.
• TRANSMITTING - Transmission of a DSC message is ongoing.
• IN COMMUNICATION WITH – The communication has been established.
3. The MMSI number of the other party, if contact to a specific station or
group shall be established.
DSC calls
Chapter 2: Operation
31