ICS ELECTRONICS NAV6 V3 Series, Руководство пользователя, Страница: 14 / 55

NAV6 Series NAVTEX System User Guide
14
Reading ‘NEW’ Messages
Sometimes it is useful to know which messages have been received since you last looked at
the NAV6 display. You may have noticed that each message header carries a ‘NEW’ icon and
that there is an additional ‘NEW’ icon in the status bar at the top of the display. Select the
NAVTEX View and you will see that Softkey 3 is now indicated as Next New. If the message at
the top of the display has the ‘NEW’ icon showing then Softkey 2 will now be indicated as
Mark Read. Once you have read the message and want to de-emphasise it then press Mark
Read. The ‘NEW’ icon will disappear from the message header. Press Next New to jump to the
next new message. Proceed through all of the messages in this way. Once all of the messages
have been marked as read then the ‘NEW’ icon at the top of the display will also disappear.
When you return to the NAV6 later on it is now very easy to tell if there are any new messages
to read (the ‘NEW’ icon will be shown in the status bar at the top of the display).
Note that messages that have been marked as read will still be displayed, but with the ‘NEW’
icon removed from the message header. It is possible to hide messages once they have been
read; go to the Message Type Filter Page and set the message types that you want to hide
after they have been marked as read to ‘New’ instead of ‘On’. You may wish to leave SAR
messages as ‘On’ so that they are not hidden once read.
Displaying the Newest Message
All messages are date and time stamped by the NAV6 even if there is no GPS connected and
therefore no correct source of time data.
If there is no GPS connected then you can manually enter the time and date or just ignore it.
The NAV6 will still order the messages in the correct chronological order (remember that the
indicated time of reception will be incorrect).
Messages are displayed in the NAVTEX View in time descending order i.e. the newest
messages will appear at top of the display.
Message Ageing
NAVTEX messages become less relevant over time and eventually just clutter the display. In
order to reduce the number of obsolete NAVTEX messages that are being displayed, the
NAV6 uses a message ‘Age Limit’.
The NAV6 will hide messages that are older than a certain pre-settable age limit. These
messages are still stored in the NAV6plus memory for a considerable time after they have
been removed from the display and can still be displayed if necessary by increasing the
message age limit setting.